Challenges and Perspectives toward Future Wide‐Bandgap Mixed‐Halide Perovskite Photovoltaics. Issue 13 (15th February 2023)

• Record Type: Journal Article
• Authors: Xu, Fan; Zhang, Meng; Li, Zikun; Yang, Xiaoyu; Zhu, Rui
• Is Part Of: Advanced energy materials. Volume 13:Issue 13(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-02-15
• Subjects: crystallizations -- defect chemistry -- mixed‐halide -- phase segregation -- wide‐bandgap PSCs; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.202203911
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract: Wide‐bandgap (WBG) perovskite solar cells (PSCs) are acknowledged as promising candidates for multijunction tandem and building photovoltaics, which attract broad research interest in related research communities. However, the performance of WBG PSCs based on the mixed‐halide perovskites still lags far behind their pure‐iodide counterparts because of the complex compositional evolution, huge photovoltage deficits, and intrinsic spectral losses. Here, by comprehensively understanding the representative WBG PSCs, the main "WBG drawbacks" from the device point of view are discussed in‐depth and three intrinsic critical issues for the growth of high‐quality WBG perovskites are proposed. The prospects for WBG PSCs toward future advancements and commercialization are also presented to guide the coming research hot spots. Abstract : This perspective discusses in‐depth the main performance losses, and three current critical issues including crystallization dynamics, defect chemistry, and phase segregation from a bottom‐up perspective, in wide‐bandgap mixed‐halide perovskite solar cells. Five promising prospects are also proposed to guide the research hot spots for next‐generation device commercialization.