Electronic Properties of Meso-Superstructured and Planar Organometal Halide Perovskite Films: Charge Trapping, Photodoping, and Carrier Mobility

Citations Over TimeTop 1% of 2014 papers

Abstract

Solution-processed organometal trihalide perovskite solar cells are attracting increasing interest, leading to high performances over 15% in thin film architectures. Here, we probe the presence of sub gap states in both solid and mesosuperstructured perovskite films and determine that they strongly influence the photoconductivity response and splitting of the quasi-Fermi levels in films and solar cells. We find that while the planar perovskite films are superior to the mesosuperstructured films in terms of charge carrier mobility (in excess of 20 cm(2) V(-1) s(-1)) and emissivity, the planar heterojunction solar cells are limited in photovoltage by the presence of sub gap states and low intrinsic doping densities.

Related Papers

• → Organometal Halide Perovskite-Based Materials and Their Applications in Solar Cell Devices(2020)3 cited
• → A study of the performance of organometal trihalide perovskite solar cell due to defects in bulk CH3NH3PbI3 (MAPI) perovskite layer(2021)1 cited
• → On the transient photoconductive decay technique for lifetime extraction in HgCdTe(2002)1 cited
• Steady-state and time-resolved photoconductivity measurements of minority carrier lifetime in ZnTe(2000)
• Impact of ETL/Absorber Interface layer on Perovskite (CH3NH3PbX3, X: I, Br, Cl) Solar Cell(2019)