Engineered cathode buffer layers for highly efficient organic solar cells: a review

0559149 - ÚMCH 2023 RIV DE eng J - Journal Article
Bishnoi, S. - Datt, R. - Arya, S. - Gupta, Sonal - Gupta, R. - Tsoi, W. C. - Sharma, S. N. - Patole, S. P. - Gupta, V.
Engineered cathode buffer layers for highly efficient organic solar cells: a review.
Advanced Materials Interfaces. Roč. 9, č. 19 (2022), č. článku 2101693. ISSN 2196-7350. E-ISSN 2196-7350
Institutional support: RVO:61389013
Keywords : cathode buffer layer * electron transport layer * interfacial layer
OECD category: Polymer science
Impact factor: 5.4, year: 2022
Method of publishing: Limited access
https://onlinelibrary.wiley.com/doi/10.1002/admi.202101693

This article presents an in-depth insight into the most efficient cathode buffer layers (CBLs) in conventional and inverted organic solar cells (OSCs). The CBL can play a critical role in improving the short circuit current density (Jsc) and fill factor (FF) of the devices by minimizing the contact resistance and reducing charge recombination at electrode/photoactive layer interface, resulting in the efficient extraction of charge carriers and therefore improving the power conversion efficiency (PCE). This review explores CBL with respect to its effect on the physics of a device and electronic processes at the interface of CBL/photoactive layer and its impact on the overall performance of OSCs. Besides this, the role of CBL, its chemical composition, morphology, thickness, dopants, deposition conditions, etc., and their corresponding effects on the device performance of both conventional and inverted OSCs are discussed in detail. Finally, CBLs that provide the best performance are summarized and their chemical structures are discussed. This article will benefit the researchers working in the domain of OSCs by providing an understanding of the CBL layers, along with various interfacial processes.

Permanent Link: https://hdl.handle.net/11104/0333074