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Structural, optical, and electrical properties of phase-controlled cesium lead iodide nanowires

Journal Article · · Nano Research
 [1];  [1];  [1];  [2];  [2];  [1];  [3];  [3]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry
  2. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Kavli Energy Nanosciences Inst.

Cesium lead iodide (CsPbI3), in its black perovskite phase, has a suitable bandgap and high quantum efficiency for photovoltaic applications. However, CsPbI3 tends to crystalize into a yellow non-perovskite phase, which has poor optoelectronic properties, at room temperature. Therefore, controlling the phase transition in CsPbI3 is critical for practical application of this material. Here we report a systematic study of the phase transition of one-dimensional CsPbI3 nanowires and their corresponding structural, optical, and electrical properties. We show the formation of perovskite black phase CsPbI3 nanowires from the non-perovskite yellow phase through rapid thermal quenching. Post-transformed black phase CsPbI3 nanowires exhibit increased photoluminescence emission intensity with a shrinking of the bandgap from 2.78 to 1.76 eV. The perovskite nanowires were photoconductive and showed a fast photoresponse and excellent stability at room temperature. Finally, these promising optical and electrical properties make the perovskite CsPbI3 nanowires attractive for a variety of nanoscale optoelectronic devices.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF); Alfred P. Sloan
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1601638
Journal Information:
Nano Research, Journal Name: Nano Research Journal Issue: 4 Vol. 10; ISSN 1998-0124
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (31)

Hybrid Field-Effect Transistors and Photodetectors Based on Organic Semiconductor and CsPbI3 Perovskite Nanorods Bilayer Structure journal June 2018
Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite journal June 2018
Significance of hydrogen bonding and other noncovalent interactions in determining octahedral tilting in the CH3NH3PbI3 hybrid organic-inorganic halide perovskite solar cell semiconductor journal January 2019
Polarized Optoelectronics of CsPbX 3 (X = Cl, Br, I) Perovskite Nanoplates with Tunable Size and Thickness journal March 2018
Rich Chemistry in Inorganic Halide Perovskite Nanostructures journal September 2018
Intrinsic Instability of Inorganic–Organic Hybrid Halide Perovskite Materials journal December 2018
Dramatically Enhanced Photoluminescence from Femtosecond Laser Induced Micro-/Nanostructures on MAPbBr 3 Single Crystal Surface journal August 2018
Flexible Linearly Polarized Photodetectors Based on All-Inorganic Perovskite CsPbI 3 Nanowires journal September 2018
Nonvolatile Rewritable Photomemory Arrays Based on Reversible Phase‐Change Perovskite for Optical Information Storage journal May 2019
Efficient and Stable Inorganic Perovskite Solar Cells Manufactured by Pulsed Flash Infrared Annealing journal September 2018
Electron‐Beam‐Related Studies of Halide Perovskites: Challenges and Opportunities journal February 2020
An All‐Inorganic Perovskite‐Phase Rubidium Lead Bromide Nanolaser journal September 2019
An All‐Inorganic Perovskite‐Phase Rubidium Lead Bromide Nanolaser journal November 2019
Caesium for Perovskite Solar Cells: An Overview journal June 2018
Strain‐Mediated Phase Stabilization: A New Strategy for Ultrastable α‐CsPbI 3 Perovskite by Nanoconfined Growth journal April 2019
Ascorbic Acid‐Assisted Stabilization of α‐Phase CsPbI 3 Perovskite for Efficient and Stable Photovoltaic Devices journal August 2019
Controllable emission bands and morphologies of high-quality CsPbX3 perovskite nanocrystals prepared in octane journal March 2018
Surface depletion field in 2D perovskite microplates: Structural phase transition, quantum confinement and Stark effect journal October 2019
Combination of solution-phase process and halide exchange for all-inorganic, highly stable CsPbBr3 perovskite nanowire photodetector journal May 2018
Finite Temperature String Method for the Study of Rare Events journal April 2005
Thermochromic halide perovskite solar cells journal January 2018
Solution synthesis and phase control of inorganic perovskites for high-performance optoelectronic devices journal January 2017
Direct synthesis of cubic phase CsPbI 3 nanowires journal January 2019
Structural effects on optoelectronic properties of halide perovskites journal January 2018
Highly efficient flexible solar cells based on a room-temperature processed inorganic perovskite journal January 2018
Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric Cs x PbI 2 Br x ( x > 1) alloys journal January 2019
A microwave-assisted template-free route for large-scale synthesis of photoluminescent single crystal CsPbI 3 nanotubes journal January 2020
Phase-transition–induced p-n junction in single halide perovskite nanowire journal August 2018
In-plane self-assembly and lasing performance of cesium lead halide perovskite nanowires journal February 2019
Temperature induces the change of CsPbBr 1.5 I 1.5 perovskite nanocrystals and affects luminescence properties journal October 2019
Spatial–temporal spectroscopy characterizations and electronic structure of methylammonium perovskites journal July 2018

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