Identification of lead vacancy defects in lead halide perovskites DOI Creative Commons
D. J. Keeble, Julia Wiktor, Sandeep Pathak

и другие.

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Сен. 22, 2021

Abstract Perovskite photovoltaics advance rapidly, but questions remain regarding point defects: while experiments have detected the presence of electrically active defects no experimentally confirmed microscopic identifications been reported. Here we identify lead monovacancy (V Pb ) in MAPbI 3 (MA = CH NH + using positron annihilation lifetime spectroscopy with aid density functional theory. Experiments on thin film and single crystal samples all exhibited dominant trapping to vacancy defects, a minimum defect ~3 × 10 15 cm −3 was determined. There also evidence at complex $$({{{{{\rm{V}}}}}}_{{{{{\rm{Pb}}}}}}{{{{{\rm{V}}}}}}_{{{{{\rm{I}}}}}})^{-}$$ ( V Pb I ) minority samples, MA-ion vacancies observed. Our experimental results support predictions other first-principles studies that deep level, hole trapping, $${{{{{{\rm{V}}}}}}}_{{{{{{\rm{Pb}}}}}}}^{2-}$$ 2 , are one most stable . This direct detection identification level native halide perovskite, technologically relevant concentrations, will enable further investigation driven mechanisms.

Язык: Английский

Strain analysis and engineering in halide perovskite photovoltaics DOI
Dongtao Liu, Deying Luo, Affan N. Iqbal

и другие.

Nature Materials, Год журнала: 2021, Номер 20(10), С. 1337 - 1346

Опубликована: Сен. 16, 2021

Язык: Английский

Процитировано

356

The critical role of composition-dependent intragrain planar defects in the performance of MA1–xFAxPbI3 perovskite solar cells DOI
Wei Li, Mathias Uller Rothmann, Ye Zhu

и другие.

Nature Energy, Год журнала: 2021, Номер 6(6), С. 624 - 632

Опубликована: Июнь 14, 2021

Язык: Английский

Процитировано

214

Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phases DOI
Tiarnan A. S. Doherty, Satyawan Nagane, Dominik J. Kubicki

и другие.

Science, Год журнала: 2021, Номер 374(6575), С. 1598 - 1605

Опубликована: Дек. 23, 2021

Stable but not quite cubic The black, photoactive phase of formamidinium (FA) perovskites, which is usually stabilized by cation alloying to avoid the formation inactive hexagonal phases, assumed be cubic. High-resolution microscopy studies Doherty et al . using nanoscale probes revealed that these FA-rich phases are rather undergo slight tilting (by two degrees) octahedra. Black can have localized regions nucleate degradation. Surface-bound ethylenediaminetetraacetic acid tilted pure FA lead triiodide against environmental —PDS

Язык: Английский

Процитировано

187

Advances and challenges in understanding the microscopic structure–property–performance relationship in perovskite solar cells DOI
Yuanyuan Zhou, Laura M. Herz, Alex K.‐Y. Jen

и другие.

Nature Energy, Год журнала: 2022, Номер 7(9), С. 794 - 807

Опубликована: Сен. 19, 2022

Язык: Английский

Процитировано

186

Local nanoscale phase impurities are degradation sites in halide perovskites DOI Open Access
Stuart Macpherson, Tiarnan A. S. Doherty, Andrew Winchester

и другие.

Nature, Год журнала: 2022, Номер 607(7918), С. 294 - 300

Опубликована: Май 24, 2022

Язык: Английский

Процитировано

185

Photovoltaically top-performing perovskite crystal facets DOI Creative Commons
Chunqing Ma, Min‐Chul Kang, Sun‐Ho Lee

и другие.

Joule, Год журнала: 2022, Номер 6(11), С. 2626 - 2643

Опубликована: Окт. 18, 2022

Язык: Английский

Процитировано

177

Designs from single junctions, heterojunctions to multijunctions for high-performance perovskite solar cells DOI
Xin Wu, Bo Li, Zonglong Zhu

и другие.

Chemical Society Reviews, Год журнала: 2021, Номер 50(23), С. 13090 - 13128

Опубликована: Янв. 1, 2021

This review comprehensively summarized the mechanisms and progress of single-junction, heterojunction multijunction designs perovskite-based solar cells, providing guidelines for further development this field.

Язык: Английский

Процитировано

154

The role of halide oxidation in perovskite halide phase separation DOI Creative Commons
Ross A. Kerner, Zhaojian Xu, Bryon W. Larson

и другие.

Joule, Год журнала: 2021, Номер 5(9), С. 2273 - 2295

Опубликована: Авг. 11, 2021

Язык: Английский

Процитировано

138

Stabilization of photoactive phases for perovskite photovoltaics DOI
Xueping Liu, Deying Luo, Zheng‐Hong Lu

и другие.

Nature Reviews Chemistry, Год журнала: 2023, Номер 7(7), С. 462 - 479

Опубликована: Апрель 26, 2023

Язык: Английский

Процитировано

124

Small grains as recombination hot spots in perovskite solar cells DOI Creative Commons
Qingzhi An, Fabian Paulus, David Becker‐Koch

и другие.

Matter, Год журнала: 2021, Номер 4(5), С. 1683 - 1701

Опубликована: Март 24, 2021

Язык: Английский

Процитировано

121