Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites

Zhu, Haiming; Trinh, M. Tuan; Wang, Jue; Fu, Yongping; Joshi, Prakriti P.; Miyata, Kiyoshi; Jin, Song; Zhu, X. -Y.

doi:10.1002/adma.201603072

Title: Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites

Abstract

A charge carrier in a lead halide perovskite lattice is protected as a large polaron responsible for the remarkable photophysical properties, irrespective of the cation type. All-inorganic-based APbX₃ perovskites may mitigate the stability problem for their applications in solar cells and other optoelectronics.

Authors:

Zhu, Haiming ^[1]; Trinh, M. Tuan ^[1]; Wang, Jue ^[1]; Fu, Yongping ^[2]; Joshi, Prakriti P. ^[1]; Miyata, Kiyoshi ^[1]; Jin, Song ^[2]; Zhu, X. -Y. ^[1]

Columbia Univ., New York, NY (United States). Dept. of Chemistry
Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemistry

Publication Date:: Fri Oct 28 00:00:00 EDT 2016

Research Org.:: Columbia Univ., New York, NY (United States); Univ. of Wisconsin, Madison, WI (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Air Force Ofﬁce of Scientiﬁc Research (AFOSR) (United States)

OSTI Identifier:: 1533029

Grant/Contract Number:: SC0010692; SC0012704; FG02-09ER46664; DMR 1420634; FA9550-14-1-0381

Resource Type:: Accepted Manuscript

Journal Name:: Advanced Materials

Additional Journal Information:: Journal Volume: 29; Journal Issue: 1; Journal ID: ISSN 0935-9648

Publisher:: Wiley

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; hybrid perovskites; lead halide perovskites; light-emitting diodes (LEDs); solar cells

Citation Formats


                    Zhu, Haiming, Trinh, M. Tuan, Wang, Jue, Fu, Yongping, Joshi, Prakriti P., Miyata, Kiyoshi, Jin, Song, and Zhu, X. -Y. Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites.  United States: N. p., 2016. 
Web.  doi:10.1002/adma.201603072.

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                    Zhu, Haiming, Trinh, M. Tuan, Wang, Jue, Fu, Yongping, Joshi, Prakriti P., Miyata, Kiyoshi, Jin, Song, & Zhu, X. -Y. Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites.  United States.  https://doi.org/10.1002/adma.201603072

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                    Zhu, Haiming, Trinh, M. Tuan, Wang, Jue, Fu, Yongping, Joshi, Prakriti P., Miyata, Kiyoshi, Jin, Song, and Zhu, X. -Y. Fri .  
"Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites".  United States.  https://doi.org/10.1002/adma.201603072.  https://www.osti.gov/servlets/purl/1533029.

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@article{osti_1533029,

  title        = {Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites},

  author       = {Zhu, Haiming and Trinh, M. Tuan and Wang, Jue and Fu, Yongping and Joshi, Prakriti P. and Miyata, Kiyoshi and Jin, Song and Zhu, X. -Y.},

  abstractNote = {A charge carrier in a lead halide perovskite lattice is protected as a large polaron responsible for the remarkable photophysical properties, irrespective of the cation type. All-inorganic-based APbX3 perovskites may mitigate the stability problem for their applications in solar cells and other optoelectronics.},

  doi          = {10.1002/adma.201603072},

  journal      = {Advanced Materials},

  number       = 1,

  volume       = 29,

  place        = {United States},

  year         = {Fri Oct 28 00:00:00 EDT 2016},

  month        = {Fri Oct 28 00:00:00 EDT 2016}

}

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Large polarons in lead halide perovskites
journal, August 2017

Miyata, Kiyoshi; Meggiolaro, Daniele; Trinh, M. Tuan
Science Advances, Vol. 3, Issue 8
DOI: 10.1126/sciadv.1701217

Lead halide perovskites: Crystal-liquid duality, phonon glass electron crystals, and large polaron formation
journal, October 2017

Miyata, Kiyoshi; Atallah, Timothy L.; Zhu, X. -Y.
Science Advances, Vol. 3, Issue 10
DOI: 10.1126/sciadv.1701469

Lead halide perovskites: Crystal-liquid duality, phonon glass electron crystals, and large polaron formation
text, January 2017

Miyata, Kiyoshi; Atallah, Timothy Luke; Zhu, Xiaoyang
Columbia University
DOI: 10.7916/d8281kg3

Understanding the physical properties of hybrid perovskites for photovoltaic applications
text, January 2017

Y., Shao,; J., Huang,; Y., Yan,
The University of North Carolina at Chapel Hill University Libraries
DOI: 10.17615/r8v8-0t85

Vapour-Deposited Cesium Lead Iodide Perovskites: Microsecond Charge Carrier Lifetimes and Enhanced Photovoltaic Performance
journal, August 2017

Hutter, Eline M.; Sutton, Rebecca J.; Chandrashekar, Sanjana
ACS Energy Letters, Vol. 2, Issue 8
DOI: 10.1021/acsenergylett.7b00591

Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy
journal, July 2018

Guo, Peijun; Gong, Jue; Sadasivam, Sridhar
Nature Communications, Vol. 9, Issue 1
DOI: 10.1038/s41467-018-05015-9

Spin-optoelectronic devices based on hybrid organic-inorganic trihalide perovskites
journal, January 2019

Wang, Jingying; Zhang, Chuang; Liu, Haoliang
Nature Communications, Vol. 10, Issue 1
DOI: 10.1038/s41467-018-07952-x

Infrared-pump electronic-probe of methylammonium lead iodide reveals electronically decoupled organic and inorganic sublattices
journal, January 2019

Guo, Peijun; Mannodi-Kanakkithodi, Arun; Gong, Jue
Nature Communications, Vol. 10, Issue 1
DOI: 10.1038/s41467-019-08363-2

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Nanowire Lasers of Formamidinium Lead Halide Perovskites and Their Stabilized Alloys with Improved Stability

Journal Article Fu, Yongping ; Zhu, Haiming ; Schrader, Alex W. ; ... - Nano Letters

The excellent intrinsic optoelectronic properties of methylammonium lead halide perovskites (MAPbX₃, X = Br, I), such as high photoluminescence quantum efficiency, long carrier lifetime, and high gain coupled with the facile solution growth of nanowires make them promising new materials for ultralow-threshold nanowire lasers. However, their photo and thermal stabilities need to be improved for practical applications. Herein, we report a low-temperature solution growth of single crystal nanowires of formamidinium lead halide perovskites (FAPbX₃) that feature red-shifted emission and better thermal stability compared to MAPbX₃. We demonstrate optically pumped room-temperature near-infrared (~820 nm) and green lasing (~560 nm) from FAPbI₃more »« less
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https://doi.org/10.1021/acs.nanolett.5b04053
Color-Pure Violet-Light-Emitting Diodes Based on Layered Lead Halide Perovskite Nanoplates

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Violet electroluminescence is rare in both inorganic and organic light-emitting diodes (LEDs). Low-cost and room- temperature solution-processed lead halide perovskites with high- efficiency and color-tunable photoluminescence are promising for LEDs. Here, we report room-temperature color-pure violet LEDs based on a two-dimensional lead halide perovskite material, namely, 2-phenylethylammonium (C₆H₅CH₂CH₂NH₃⁺, PEA) lead bromide [(PEA)₂PbBr₄]. The natural quantum confinement of two-dimen- sional layered perovskite (PEA)₂PbBr₄ allows for photoluminescence of shorter wavelength (410 nm) than its three-dimensional counterpart. By converting as-deposited polycrystalline thin films to micrometer-sized (PEA)₂PbBr₄ nanoplates using solvent vapor annealing, we successfully integrated this layered perovskite material into LEDs and achieved efficientmore »« less
Cited by 250
https://doi.org/10.1021/acsnano.6b02683
Large polarons in lead halide perovskites

Journal Article Miyata, Kiyoshi ; Meggiolaro, Daniele ; Trinh, M. Tuan ; ... - Science Advances

Lead halide perovskites show marked defect tolerance responsible for their excellent optoelectronic properties. These properties might be explained by the formation of large polarons, but how they are formed and whether organic cations are essential remain open questions. We provide a direct time domain view of large polaron formation in single-crystal lead bromide perovskites CH₃NH₃PbBr₃ and CsPbBr₃. We found that large polaron forms predominantly from the deformation of the PbBr₃^- frameworks, irrespective of the cation type. The difference lies in the polaron formation time, which, in CH₃NH₃PbBr₃ (0.3 ps), is less than half of that in CsPbBr3 (0.7 ps). First-principlesmore »« less
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Ferroelectric Large Polarons and Defect Tolerance in Multi-Component Lead Halide Perovskites

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Solvation plays a pivotal role in chemistry and biology. A solid-state analogy of solvation is polaron formation, but the magnitude of Coulomb screening is typically an order-of-magnitude weaker than that of solvation in aqueous solutions. Here the PI aims to explore a new class of polarons, the ferroelectric large polaron, which allows efficient Coulomb screening of an electron or hole by extended ordering of dipoles from symmetry-broken unit cells. This kind of local ordering is reflected in the ferroelectric-like THz dielectric responses of lead halide perovskites (LHPs) and may be partially responsible for their exceptional optoelectronic performances. A charge carriermore »« less
https://doi.org/10.2172/1912091

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Abstract Among the exceptional properties of lead halide perovskites (LHPs) is the ultraslow cooling of hot carriers. Carrier densities below the Mott density for large polarons (≤ ≈10 ¹⁸ cm ⁻³ ) are focused on here. As in other semiconductors, a nascent hot electron distribution initially cools down via emission of longitudinal optical (LO) phonons on the 10 ⁻¹⁴ –10 ⁻¹³ s timescale. What distinguishes LHPs from conventional semiconductors is the exceptionally efficient screening in the former. The dielectric screening in LHPs on the 10 ⁻¹³ s timescale results in an order‐of‐magnitude reduction in the Coulomb potential upon the formationmore »« less
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https://doi.org/10.1002/adma.201803054

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Title: Organic Cations Might Not Be Essential to the Remarkable Properties of Band Edge Carriers in Lead Halide Perovskites

Abstract

Citation Formats

Charge Carriers in Hybrid Organic–Inorganic Lead Halide Perovskites Might Be Protected as Large Polarons journal, November 2015

Metal-halide perovskites for photovoltaic and light-emitting devices journal, May 2015

Intrinsic Charge Transport across Phase Transitions in Hybrid Organo-Inorganic Perovskites journal, May 2016

Hybrid organic—inorganic perovskites: low-cost semiconductors with intriguing charge-transport properties journal, January 2016

Low trap-state density and long carrier diffusion in organolead trihalide perovskite single crystals journal, January 2015

Picosecond transient reflectivity of unpinned gallium arsenide (100) surfaces journal, January 1987

Role of Ferroelectric Nanodomains in the Transport Properties of Perovskite Solar Cells journal, January 2016

Structural and electronic properties of organo-halide hybrid perovskites from ab initio molecular dynamics journal, January 2015

Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors journal, April 2015

Rashba Spin–Orbit Coupling Enhanced Carrier Lifetime in CH 3 NH 3 PbI 3 journal, November 2015

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization journal, July 2015

Relationships between Lead Halide Perovskite Thin-Film Fabrication, Morphology, and Performance in Solar Cells journal, November 2015

Lasing in robust cesium lead halide perovskite nanowires journal, February 2016

Revealing the role of organic cations in hybrid halide perovskite CH3NH3PbI3 journal, April 2015

Nanowire Lasers of Formamidinium Lead Halide Perovskites and Their Stabilized Alloys with Improved Stability journal, January 2016

Are Mobilities in Hybrid Organic–Inorganic Halide Perovskites Actually “High”? journal, November 2015

Screening in crystalline liquids protects energetic carriers in hybrid perovskites journal, September 2016

Efficient Planar Heterojunction Perovskite Solar Cells Based on Formamidinium Lead Bromide journal, August 2014

Dimensionless solution of the equation describing the effect of surface recombination on carrier decay in semiconductors journal, September 1994

Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals journal, January 2016

How Important Is the Organic Part of Lead Halide Perovskite Photovoltaic Cells? Efficient CsPbBr 3 Cells journal, June 2015

Mechanical properties of A Pb X 3 ( A = Cs or CH 3 NH 3 ; X = I or Br) perovskite single crystals journal, October 2015

High-efficiency solution-processed perovskite solar cells with millimeter-scale grains journal, January 2015

What Is Moving in Hybrid Halide Perovskite Solar Cells? journal, February 2016

Excited State Properties of Hybrid Perovskites journal, December 2015

Semiconductor excitons in new light journal, July 2006

Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites journal, September 2015

Extended carrier lifetimes and diffusion in hybrid perovskites revealed by Hall effect and photoconductivity measurements journal, August 2016

Trap States in Lead Iodide Perovskites journal, January 2015

Discerning the Surface and Bulk Recombination Kinetics of Organic-Inorganic Halide Perovskite Single Crystals journal, May 2016

Nanoscale Charge Localization Induced by Random Orientations of Organic Molecules in Hybrid Perovskite CH 3 NH 3 PbI 3 journal, December 2014

Impact of microstructure on local carrier lifetime in perovskite solar cells journal, April 2015

Correlated electron–hole plasma in organometal perovskites journal, September 2014

Excitons versus free charges in organo-lead tri-halide perovskites journal, April 2014

Analysis of Multivalley and Multibandgap Absorption and Enhancement of Free Carriers Related to Exciton Screening in Hybrid Perovskites journal, May 2014

Minority Carrier Lifetime Analysis in the Bulk of Thin-Film Absorbers Using Subbandgap (Two-Photon) Excitation journal, October 2013

Charge-Carrier Dynamics in Organic-Inorganic Metal Halide Perovskites journal, May 2016

Femtosecond pump-probe reflectivity study of silicon carrier dynamics journal, October 2002

Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3 journal, October 2013

Dynamical Origin of the Rashba Effect in Organohalide Lead Perovskites: A Key to Suppressed Carrier Recombination in Perovskite Solar Cells? journal, April 2016

Making and Breaking of Lead Halide Perovskites journal, January 2016

Low surface recombination velocity in solution-grown CH3NH3PbBr3 perovskite single crystal journal, August 2015

Molecular disorder and translation/rotation coupling in the plastic crystal phase of hybrid perovskites journal, January 2016

Photon recycling in lead iodide perovskite solar cells journal, March 2016

Carrier-induced change in refractive index of InP, GaAs and InGaAsP journal, January 1990

Spatially resolved photoluminescence measurements on Cu(In,Ga)Se2 thin films journal, February 2002

Perovskite photonic sources journal, April 2016

Fast Free-Carrier Diffusion in CH 3 NH 3 PbBr 3 Single Crystals Revealed by Time-Resolved One- and Two-Photon Excitation Photoluminescence Spectroscopy journal, January 2016

Alkylammonium lead halides. Part 2. CH 3 NH 3 PbX 3 (X = Cl, Br, I) perovskites: cuboctahedral halide cages with isotropic cation reorientation journal, March 1990

Measurement of surface recombination velocity in semiconductors by diffraction from picosecond transient free‐carrier gratings journal, September 1978

Determination of the exciton binding energy and effective masses for methylammonium and formamidinium lead tri-halide perovskite semiconductors journal, January 2016

Real-Time Observation of Organic Cation Reorientation in Methylammonium Lead Iodide Perovskites journal, August 2015

Picosecond Transient Reflectivity of Unpinned Gallium Arsenide (100) Surfaces. report, February 1988

Revealing the role of organic cations in hybrid halide perovskites CH3NH3PbI3 text, January 2014

Quantifying Polaron Formation and Charge Carrier Cooling in Lead-Iodide Perovskites journal, May 2018

Merits and Challenges of Ruddlesden-Popper Soft Halide Perovskites in Electro-Optics and Optoelectronics journal, October 2018

Strategies to Improve Luminescence Efficiency of Metal‐Halide Perovskites and Light‐Emitting Diodes journal, September 2018

Properties of Excitons and Photogenerated Charge Carriers in Metal Halide Perovskites journal, September 2018

Pseudohalides in Lead‐Based Perovskite Semiconductors journal, December 2018

Excitations Partition into Two Distinct Populations in Bulk Perovskites journal, January 2018

Continuous-Wave Lasing in Cesium Lead Bromide Perovskite Nanowires journal, December 2017

Lasing Characteristics of CH 3 NH 3 PbCl 3 Single-Crystal Microcavities under Multiphoton Excitation journal, December 2017

One‐Step Loading on Natural Mineral Halloysite Nanotube: An Effective Way to Enhance the Stability of Perovskite CsPbX 3 (X = Cl, Br, I) Quantum Dots journal, December 2018

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers journal, May 2017

Polarons in Metal Halide Perovskites journal, April 2020

Anorganische CsPbX 3 ‐Perowskit‐Solarzellen: Fortschritte und Perspektiven journal, August 2019

All‐Inorganic CsPbX 3 Perovskite Solar Cells: Progress and Prospects journal, August 2019

Recent Progress of All‐Bromide Inorganic Perovskite Solar Cells journal, April 2020

Two-Dimensional Metal Halide Perovskites: Theory, Synthesis, and Optoelectronics journal, January 2017

Single-crystal microplates of two-dimensional organic–inorganic lead halide layered perovskites for optoelectronics journal, January 2017

Post-synthesis phase and shape evolution of CsPbBr3 colloidal nanocrystals: The role of ligands journal, April 2019

Understanding the physical properties of hybrid perovskites for photovoltaic applications journal, July 2017

Transcending the slow bimolecular recombination in lead-halide perovskites for electroluminescence journal, February 2017

Progress in laser cooling semiconductor nanocrystals and nanostructures journal, October 2019

Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy journal, July 2018

Spin-optoelectronic devices based on hybrid organic-inorganic trihalide perovskites journal, January 2019

How lasing happens in CsPbBr3 perovskite nanowires journal, January 2019

Charge Carriers in Hybrid Organic–Inorganic Lead Halide Perovskites Might Be Protected as Large Polarons
journal, November 2015

Metal-halide perovskites for photovoltaic and light-emitting devices
journal, May 2015

Intrinsic Charge Transport across Phase Transitions in Hybrid Organo-Inorganic Perovskites
journal, May 2016

Hybrid organic—inorganic perovskites: low-cost semiconductors with intriguing charge-transport properties
journal, January 2016

Low trap-state density and long carrier diffusion in organolead trihalide perovskite single crystals
journal, January 2015

Picosecond transient reflectivity of unpinned gallium arsenide (100) surfaces
journal, January 1987

Role of Ferroelectric Nanodomains in the Transport Properties of Perovskite Solar Cells
journal, January 2016

Structural and electronic properties of organo-halide hybrid perovskites from ab initio molecular dynamics
journal, January 2015

Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors
journal, April 2015

Rashba Spin–Orbit Coupling Enhanced Carrier Lifetime in CH ₃ NH ₃ PbI ₃
journal, November 2015

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization
journal, July 2015

Relationships between Lead Halide Perovskite Thin-Film Fabrication, Morphology, and Performance in Solar Cells
journal, November 2015

Lasing in robust cesium lead halide perovskite nanowires
journal, February 2016

Revealing the role of organic cations in hybrid halide perovskite CH3NH3PbI3
journal, April 2015

Nanowire Lasers of Formamidinium Lead Halide Perovskites and Their Stabilized Alloys with Improved Stability
journal, January 2016

Are Mobilities in Hybrid Organic–Inorganic Halide Perovskites Actually “High”?
journal, November 2015

Screening in crystalline liquids protects energetic carriers in hybrid perovskites
journal, September 2016

Efficient Planar Heterojunction Perovskite Solar Cells Based on Formamidinium Lead Bromide
journal, August 2014

Dimensionless solution of the equation describing the effect of surface recombination on carrier decay in semiconductors
journal, September 1994

Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals
journal, January 2016

How Important Is the Organic Part of Lead Halide Perovskite Photovoltaic Cells? Efficient CsPbBr ₃ Cells
journal, June 2015

Mechanical properties of A Pb X ₃ ( A = Cs or CH ₃ NH ₃ ; X = I or Br) perovskite single crystals
journal, October 2015

High-efficiency solution-processed perovskite solar cells with millimeter-scale grains
journal, January 2015

What Is Moving in Hybrid Halide Perovskite Solar Cells?
journal, February 2016

Excited State Properties of Hybrid Perovskites
journal, December 2015

Semiconductor excitons in new light
journal, July 2006

Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites
journal, September 2015

Extended carrier lifetimes and diffusion in hybrid perovskites revealed by Hall effect and photoconductivity measurements
journal, August 2016

Trap States in Lead Iodide Perovskites
journal, January 2015

Discerning the Surface and Bulk Recombination Kinetics of Organic-Inorganic Halide Perovskite Single Crystals
journal, May 2016

Nanoscale Charge Localization Induced by Random Orientations of Organic Molecules in Hybrid Perovskite CH ₃ NH ₃ PbI ₃
journal, December 2014

Impact of microstructure on local carrier lifetime in perovskite solar cells
journal, April 2015

Correlated electron–hole plasma in organometal perovskites
journal, September 2014

Excitons versus free charges in organo-lead tri-halide perovskites
journal, April 2014

Analysis of Multivalley and Multibandgap Absorption and Enhancement of Free Carriers Related to Exciton Screening in Hybrid Perovskites
journal, May 2014

Minority Carrier Lifetime Analysis in the Bulk of Thin-Film Absorbers Using Subbandgap (Two-Photon) Excitation
journal, October 2013

Charge-Carrier Dynamics in Organic-Inorganic Metal Halide Perovskites
journal, May 2016

Femtosecond pump-probe reflectivity study of silicon carrier dynamics
journal, October 2002

Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH₃NH₃PbI₃
journal, October 2013

Dynamical Origin of the Rashba Effect in Organohalide Lead Perovskites: A Key to Suppressed Carrier Recombination in Perovskite Solar Cells?
journal, April 2016

Making and Breaking of Lead Halide Perovskites
journal, January 2016

Low surface recombination velocity in solution-grown CH3NH3PbBr3 perovskite single crystal
journal, August 2015

Molecular disorder and translation/rotation coupling in the plastic crystal phase of hybrid perovskites
journal, January 2016

Photon recycling in lead iodide perovskite solar cells
journal, March 2016

Carrier-induced change in refractive index of InP, GaAs and InGaAsP
journal, January 1990

Spatially resolved photoluminescence measurements on Cu(In,Ga)Se2 thin films
journal, February 2002

Perovskite photonic sources
journal, April 2016

Fast Free-Carrier Diffusion in CH ₃ NH ₃ PbBr ₃ Single Crystals Revealed by Time-Resolved One- and Two-Photon Excitation Photoluminescence Spectroscopy
journal, January 2016

Alkylammonium lead halides. Part 2. CH ₃ NH ₃ PbX ₃ (X = Cl, Br, I) perovskites: cuboctahedral halide cages with isotropic cation reorientation
journal, March 1990

Measurement of surface recombination velocity in semiconductors by diffraction from picosecond transient free‐carrier gratings
journal, September 1978

Determination of the exciton binding energy and effective masses for methylammonium and formamidinium lead tri-halide perovskite semiconductors
journal, January 2016

Real-Time Observation of Organic Cation Reorientation in Methylammonium Lead Iodide Perovskites
journal, August 2015

Picosecond Transient Reflectivity of Unpinned Gallium Arsenide (100) Surfaces.
report, February 1988

Revealing the role of organic cations in hybrid halide perovskites CH3NH3PbI3
text, January 2014

Quantifying Polaron Formation and Charge Carrier Cooling in Lead-Iodide Perovskites
journal, May 2018

Merits and Challenges of Ruddlesden-Popper Soft Halide Perovskites in Electro-Optics and Optoelectronics
journal, October 2018

Strategies to Improve Luminescence Efficiency of Metal‐Halide Perovskites and Light‐Emitting Diodes
journal, September 2018

Properties of Excitons and Photogenerated Charge Carriers in Metal Halide Perovskites
journal, September 2018

Pseudohalides in Lead‐Based Perovskite Semiconductors
journal, December 2018

Excitations Partition into Two Distinct Populations in Bulk Perovskites
journal, January 2018

Continuous-Wave Lasing in Cesium Lead Bromide Perovskite Nanowires
journal, December 2017

Lasing Characteristics of CH ₃ NH ₃ PbCl ₃ Single-Crystal Microcavities under Multiphoton Excitation
journal, December 2017

One‐Step Loading on Natural Mineral Halloysite Nanotube: An Effective Way to Enhance the Stability of Perovskite CsPbX ₃ (X = Cl, Br, I) Quantum Dots
journal, December 2018

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers
journal, May 2017

Polarons in Metal Halide Perovskites
journal, April 2020

Anorganische CsPbX ₃ ‐Perowskit‐Solarzellen: Fortschritte und Perspektiven
journal, August 2019

All‐Inorganic CsPbX ₃ Perovskite Solar Cells: Progress and Prospects
journal, August 2019

Recent Progress of All‐Bromide Inorganic Perovskite Solar Cells
journal, April 2020

Two-Dimensional Metal Halide Perovskites: Theory, Synthesis, and Optoelectronics
journal, January 2017

Single-crystal microplates of two-dimensional organic–inorganic lead halide layered perovskites for optoelectronics
journal, January 2017

Post-synthesis phase and shape evolution of CsPbBr3 colloidal nanocrystals: The role of ligands
journal, April 2019

Understanding the physical properties of hybrid perovskites for photovoltaic applications
journal, July 2017

Transcending the slow bimolecular recombination in lead-halide perovskites for electroluminescence
journal, February 2017

Progress in laser cooling semiconductor nanocrystals and nanostructures
journal, October 2019

Slow thermal equilibration in methylammonium lead iodide revealed by transient mid-infrared spectroscopy
journal, July 2018

Spin-optoelectronic devices based on hybrid organic-inorganic trihalide perovskites
journal, January 2019

How lasing happens in CsPbBr3 perovskite nanowires
journal, January 2019

Infrared-pump electronic-probe of methylammonium lead iodide reveals electronically decoupled organic and inorganic sublattices
journal, January 2019

Metal halide perovskite nanostructures for optoelectronic applications and the study of physical properties
journal, February 2019

Shallow trapping vs. deep polarons in a hybrid lead halide perovskite, CH ₃ NH ₃ PbI ₃
journal, January 2017