Correlation between morphology and charge carrier dynamics for solubility of methylammonium lead halide in efficient perovskite photovoltaics

2020 ◽  
Author(s):  
Byung-Gi Kim ◽  
Woongsik Jang ◽  
Jae Sang Cho ◽  
Dong Hwan Wang
Keyword(s):  
Charge Carrier ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics ◽  
Lead Halide

scholarly journals Charge‐Carrier Dynamics, Mobilities, and Diffusion Lengths of 2D–3D Hybrid Butylammonium–Cesium–Formamidinium Lead Halide Perovskites

2019 ◽  
Vol 29 (35) ◽  
pp. 1902656 ◽  
Author(s):  
Leonardo R. V. Buizza ◽  
Timothy W. Crothers ◽  
Zhiping Wang ◽  
Jay B. Patel ◽  
Rebecca L. Milot ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics ◽  
Halide Perovskites ◽  
And Diffusion ◽  
Lead Halide

Impact of Moisture on Photoexcited Charge Carrier Dynamics in Methylammonium Lead Halide Perovskites

2018 ◽  
Vol 9 (21) ◽  
pp. 6312-6320 ◽  
Author(s):  
Zhaoning Song ◽  
Niraj Shrestha ◽  
Suneth C. Watthage ◽  
Geethika K. Liyanage ◽  
Zahrah S. Almutawah ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics ◽  
Halide Perovskites ◽  
Photoexcited Charge Carrier ◽  
Lead Halide

scholarly journals Charge Carrier Dynamics in Sn-Doped Two-Dimensional Lead Halide Perovskites Studied by Terahertz Spectroscopy

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhengyuan Qin ◽  
Chunfeng Zhang ◽  
Lan Chen ◽  
Xiaoyong Wang ◽  
Min Xiao
Keyword(s):  
Charge Carrier ◽  
Terahertz Spectroscopy ◽  
Early Stage ◽  
Carrier Dynamics ◽  
Charge Carriers ◽  
Two Dimensional ◽  
Sn Doping ◽  
Charge Carrier Dynamics ◽  
Halide Perovskites ◽  
Lead Halide

Sn doping is established as an effective approach to promote the light emission properties in in two-dimensional lead-halide perovskites. However, the effect on the charge carrier dynamics is largely unexplored. In this work, we conduct terahertz spectroscopy to study the effects of Sn doping on the charge dynamics in the two-dimensional perovskites PEA2SnxPb1–xI4 (PEA = phenethylammonium) with different doping levels. The spectral dispersion analysis suggests that the early-stage dynamics with lifetime of ∼ 2 ps is contributed by both the transport of hot charge carriers and the polarizability of hot excitons. The long-lived component of first-order charge carrier recombination is dramatically improved when Sn doping increases, which is ascribed to the equilibrium between charge carriers and excitons with smaller bind energies in the higher-level Sn-doped samples. The finding in this work suggests Sn doping is an effective approach to optimize the charge carrier transport in 2D perovskite for potential optoelectronic applications.

Charge Carrier Dynamics in Nanostructured Tungsten Trioxide for Solar Driven Water Oxidation

2018 ◽  
Author(s):  
Sacha Corby ◽  
Laia Francas ◽  
Shababa Selim ◽  
Michael Sachs ◽  
Andreas Kafizas ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Oxidation ◽  
Tungsten Trioxide ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics
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