Release Time:2019-03-11  Hits:

Indexed by:Journal Article

Date of Publication:2018-03-21

Journal:JOURNAL OF MATERIALS CHEMISTRY A

Included Journals:EI、SCIE

Volume:6

Issue:11

Page Number:4572-4589

ISSN:2050-7488

Summary:Organic-inorganic halide perovskite solar cells (PSCs) have attracted much attention in recent years and their power conversion efficiency (PCE) has rapidly improved from 3.8% to 22.7%. However, the commonly used electron selective layer (ESL), TiO2, requires a high-temperature post-treatment during its preparation process, which is not compatible with flexible PSCs on plastic substrates. Moreover, it is energy intensive and not suitable for the low-cost mass production of PSCs. Developing low-temperature processable ESLs can solve these problems and realize the all-low-temperature fabrication of PSCs. Therefore, in this review, the current progress in low-temperature processed ESLs, especially non-TiO2 inorganic and organic materials and quantum dots (QDs), such as SnO2, ZnO, WOx, CeOx, Nb2O5, In2O3, CdS, Bi2S3, In2S3, Zn2SnO4, fullerene, non-fullerene, CdSe QDs, etc., is summarized. Their preparation methods, properties and applications for use in PSCs are highlighted. Several results obtained by our group are also included. These low-temperature processed ESLs will provide more possibilities for implementing the all-low-temperature fabrication of PSCs with high performances.