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To Be Higher and Stronger—Metal Oxide Electron Transport Materials for Perovskite Solar Cells
Author(s) -
Zhou Yu,
Li Xin,
Lin Hong
Publication year - 2020
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201902579
Subject(s) - perovskite (structure) , materials science , photovoltaic system , nanotechnology , electron , oxide , metal , halide , optoelectronics , electron transport chain , engineering physics , computer science , physics , chemistry , chemical engineering , engineering , electrical engineering , inorganic chemistry , quantum mechanics , metallurgy , biochemistry
Abstract Organometallic mixed halide perovskite solar cells (PSCs) have emerged as a promising photovoltaic technology with increasingly improved device efficiency exceeding 24%. Charge transport layers, especially electron transport layers (ETLs), are verified to play a vital role in device performance and stability. Recently, metal oxides (MOs) have been widely studied as ETLs for high‐performance PSCs due to their excellent electronic properties, superb versatility, and great stability. This Review briefly discusses the development of PSCs' architecture and outlines the requirements for MO ETLs. Additionally, recent progress of MO ETLs from preparation to optimization for efficient PSCs is systematically summarized and highlighted to associate the versatility of MO ETLs with the performance of devices. Finally, a summary and prospectives for the future development of MO ETLs toward practical application of high‐performance PSCs are drawn.