journal article·2022-09-14

Thermal Annealing-Free SnO2 for Fully Room-Temperature-Processed Perovskite Solar Cells

Zhengjie Xu, Lanqin Huang, Yue Jiang, Zhuoxi Li, Cong Chen, Zijun He, Jiayan Liu, Yating Fang, Kai Wang, Guofu Zhou, Jun-Ming Liu, Jinwei Gao

ACS Applied Materials & Interfaces· Volume 14· Issue 36
Publisher page

Abstract

The SnO2 electron transport layer (ETL) for perovskite solar cells (PSCs) has been recognized as one of the most reported protocols due to its processing convenience, high reproducibility, and excellence in device performance. To date, the thermal annealing (TA) process is still an essential step for a high-quality SnO2 ETL to reduce the surface trap density. This however could restrict its processing with high thermal energy input and set a barrier to the easiness of manufacturing such as processing under room-temperature conditions. Herein, we report a thermal annealing-free (TAF) SnO2 ETL by an alternative UV–ozone (UVO) treatment. This technique simultaneously endows the SnO2 ETL with a deeper valence band maximum (EVB) and lower defect density. Furthermore, with this SnO2 ETL, a power conversion efficiency (PCE) of 21.46 and 22.26% was achieved based on MAPbI3 and Cs0.05(FA0.85MA0.15)0.95Pb(I0.85Br0.15)3 absorbers, respectively. Importantly, a fully room-temperature-processed (RTP) PSC based on the TAF-SnO2 ETL has been demonstrated with a PCE of 20.88% on a rigid substrate and 15.92% on a flexible substrate, which are the highest values for RTP solar cells.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Advanced Materials & Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China

Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Pokfulam 999077, Hong Kong

Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States

Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China

Laboratory of Solid-State Microstructures, Nanjing University, Nanjing 210093, China

Funding

Guangdong Province Introduction of Innovative R&D Team · Pennsylvania State University · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province · NSFC-Guangdong Joint Fund

References (51)

Show source-provided references
1. 10.1038/s41586-021-03518-y10.1038/s41586-021-03518-y ↗
2. 10.1126/science.abf560210.1126/science.abf5602 ↗
3. 10.1038/s41578-019-0176-210.1038/s41578-019-0176-2 ↗
4. 10.1038/s41586-021-03285-w10.1038/s41586-021-03285-w ↗
5. 10.1038/s41586-021-03964-810.1038/s41586-021-03964-8 ↗
6. 10.1021/ja809598r10.1021/ja809598r ↗
7. 10.1039/D1EE01206A10.1039/D1EE01206A ↗
8. 10.1038/s41560-020-00756-810.1038/s41560-020-00756-8 ↗
9. 10.1039/C8TA09452G10.1039/C8TA09452G ↗
10. 10.1002/anie.20180978110.1002/anie.201809781 ↗
11. 10.1016/j.nantod.2021.10115510.1016/j.nantod.2021.101155 ↗
12. 10.1016/j.joule.2021.04.01410.1016/j.joule.2021.04.014 ↗
13. 10.1002/adma.20200399010.1002/adma.202003990 ↗
14. 10.1002/smll.20180115410.1002/smll.201801154 ↗
15. 10.1002/adma.20200550410.1002/adma.202005504 ↗
16. 10.1016/j.nanoen.2016.10.05510.1016/j.nanoen.2016.10.055 ↗
17. 10.1039/C5TA06574G10.1039/C5TA06574G ↗
18. 10.1021/jacs.5b0199410.1021/jacs.5b01994 ↗
19. 10.1038/nenergy.2016.17710.1038/nenergy.2016.177 ↗
20. 10.1002/adfm.20190055710.1002/adfm.201900557 ↗
21. 10.1002/aenm.20190083410.1002/aenm.201900834 ↗
22. 10.1039/C7CS00026J10.1039/C7CS00026J ↗
23. 10.1021/acsenergylett.0c0156610.1021/acsenergylett.0c01566 ↗
24. 10.3390/ma1215242210.3390/ma12152422 ↗
25. 10.1038/nature1143410.1038/nature11434 ↗
26. 10.1016/j.apsusc.2019.05.05310.1016/j.apsusc.2019.05.053 ↗
27. 10.1002/solr.20190019110.1002/solr.201900191 ↗
28. 10.1016/j.jmst.2020.04.05410.1016/j.jmst.2020.04.054 ↗
29. 10.1021/acsaem.0c0052510.1021/acsaem.0c00525 ↗
30. 10.1021/acsami.8b0262410.1021/acsami.8b02624 ↗
31. 10.1021/acsami.7b0439210.1021/acsami.7b04392 ↗
32. 10.1002/solr.20190020410.1002/solr.201900204 ↗
33. 10.1002/adfm.20120328610.1002/adfm.201203286 ↗
34. 10.1002/adma.20170602310.1002/adma.201706023 ↗
35. 10.1002/aenm.20190214210.1002/aenm.201902142 ↗
36. 10.1002/aenm.20190308310.1002/aenm.201903083 ↗
37. 10.1063/1.35727710.1063/1.357277 ↗
38. 10.1002/adfm.20200155910.1002/adfm.202001559 ↗
39. 10.1002/adfm.20180677910.1002/adfm.201806779 ↗
40. 10.1016/j.solener.2019.03.02610.1016/j.solener.2019.03.026 ↗
41. 10.1016/j.jechem.2021.09.02110.1016/j.jechem.2021.09.021 ↗
42. 10.1039/C8NR10125F10.1039/C8NR10125F ↗
43. 10.1002/adma.20190290210.1002/adma.201902902 ↗
44. 10.1039/C9TA11744J10.1039/C9TA11744J ↗
45. 10.1021/acsnano.7b0407010.1021/acsnano.7b04070 ↗
46. 10.1039/C6EE02139E10.1039/C6EE02139E ↗
47. 10.1038/s41467-018-05760-x10.1038/s41467-018-05760-x ↗
48. 10.1038/s41467-018-05454-410.1038/s41467-018-05454-4 ↗
49. 10.1002/solr.20190049910.1002/solr.201900499 ↗
50. 10.1038/s41467-018-07099-910.1038/s41467-018-07099-9 ↗
51. 10.1039/D0EE01967D10.1039/D0EE01967D ↗