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Title: Distinct exciton dissociation behavior of organolead trihalide perovskite and excitonic semiconductors studied in a same device

Journal Article · · Small
 [1];  [2];  [2];  [2];  [2];  [2];  [2]
  1. Univ. of Nebraska, Lincoln, NE (United States); University of Nebraska, Lincoln
  2. Univ. of Nebraska, Lincoln, NE (United States)

The nonexcitonic character for organometal trihalide perovskites is demonstrated by examining the field-dependent exciton dissociation behavior. Moreover, it is found that photogenerated excitons can be effectively dissociated into free charges inside perovskite without the assistance of charge extraction layer or external field, which is a stark contrast to the charge-separation behavior in excitonic materials in the same photovoltaic operation system.

Research Organization:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
EE0006709
OSTI ID:
1237992
Journal Information:
Small, Journal Name: Small Journal Issue: 18 Vol. 11; ISSN 1613-6810
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (27)

Stabilized Wide Bandgap MAPbBr x I 3- x Perovskite by Enhanced Grain Size and Improved Crystallinity journal December 2015
Nanocrystalline Perovskite Hybrid Photodetectors with High Performance in Almost Every Figure of Merit journal December 2017
Constructing CsPbBr 3 Cluster Passivated‐Triple Cation Perovskite for Highly Efficient and Operationally Stable Solar Cells journal February 2019
Reduced Interface-Mediated Recombination for High Open-Circuit Voltages in CH 3 NH 3 PbI 3 Solar Cells journal May 2017
Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells journal May 2017
Properties of Excitons and Photogenerated Charge Carriers in Metal Halide Perovskites journal September 2018
Stabilized Wide Bandgap MAPbBr x I 3- x Perovskite by Enhanced Grain Size and Improved Crystallinity journal December 2015
Light-Induced Self-Poling Effect on Organometal Trihalide Perovskite Solar Cells for Increased Device Efficiency and Stability journal August 2015
Solution Processable Inorganic-Organic Double-Layered Hole Transport Layer for Highly Stable Planar Perovskite Solar Cells journal August 2018
Photophysics of Methylammonium Lead Tribromide Perovskite: Free Carriers, Excitons, and Sub‐Bandgap States journal April 2020
Hole Transport Materials in Conventional Structural (n–i–p) Perovskite Solar Cells: From Past to the Future journal January 2020
Understanding the Outstanding Power Conversion Efficiency of Perovskite-Based Solar Cells journal July 2015
Organic‐Inorganic Halide Perovskites: From Crystallization of Polycrystalline Films to Solar Cell Applications journal August 2019
Understanding the physical properties of hybrid perovskites for photovoltaic applications journal July 2017
Correlation of energy disorder and open-circuit voltage in hybrid perovskite solar cells journal January 2016
Monolithic integration of hybrid perovskite single crystals with heterogenous substrate for highly sensitive X-ray imaging journal April 2017
N-type polymers as electron extraction layers in hybrid perovskite solar cells with improved ambient stability journal January 2016
Exploration of the compositional space for mixed lead halogen perovskites for high efficiency solar cells journal January 2016
Synergetic effects of solution-processable fluorinated graphene and PEDOT as a hole-transporting layer for highly efficient and stable normal-structure perovskite solar cells journal January 2017
Understanding of carrier dynamics, heterojunction merits and device physics: towards designing efficient carrier transport layer-free perovskite solar cells journal January 2020
Structural design considerations of solution-processable graphenes as interfacial materials via a controllable synthesis method for the achievement of highly efficient, stable, and printable planar perovskite solar cells journal January 2019
Preferred orientations of organic cations at lead-halide perovskite interfaces revealed using vibrational sum-frequency spectroscopy journal January 2020
Metal halide perovskite light emitters journal September 2016
Optical Transitions in Hybrid Perovskite Solar Cells: Ellipsometry, Density Functional Theory, and Quantum Efficiency Analyses for CH 3 NH 3 PbI 3 journal January 2016
Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells text January 2017
Correlation of energy disorder and open-circuit voltage in hybrid perovskite solar cells text January 2016
Understanding the physical properties of hybrid perovskites for photovoltaic applications text January 2017

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