Methylammonium and Bromide‐Free Tin‐Based Low Bandgap Perovskite Solar Cells. Issue 27 (7th June 2022)

• Record Type: Journal Article
• Authors: Imran, Tahir; Rauf, Sajid; Raza, Hasan; Aziz, Liaquat; Chen, Rui; Liu, Sanwan; Wang, Jianan; Ahmad, Muhammad Ashfaq; Zhang, Shasha; Zhang, Yiqiang; Liu, Zonghao; Chen, Wei
• Is Part Of: Advanced energy materials. Volume 12:Issue 27(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-06-07
• Subjects: efficiency -- low bandgap -- perovskite solar cells -- Sn‐based perovskites -- stability; 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.202200305
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract: Lead halide‐based perovskite solar cells (PSCs) are intriguing candidates for photovoltaic technology because of their high efficiency, low cost, and simple process advantages. Owing to lead toxicity, PSCs based on partially/fully substituted Pb with tin have attracted tremendous attention, which would enable the ideal bandgap to approach the Shockley‐Queisser (S‐Q) limit. Especially, methylammonium (MA), bromide‐free, tin‐based perovskites are striking, because of the intrinsic poor stability of MA and blue shift caused by the incorporation of Br − . The first section of this review emphasizes the motivation for studying single‐junction MA, Br‐free, and Sn‐based perovskites. The film quality improvement strategies of Sn‐based perovskites, including additive, composition, dimensional, and interface engineering toward high‐efficiency devices are comprehensively overviewed. Moreover, strategies to improve stability, where shelf, thermal and operational stabilities of the devices are summarized. Finally, this review concludes with a discussion of actual limitations and future prospects for Sn‐based PSCs. Abstract : Methylammonium, bromide‐free, and Sn‐based perovskites are intriguing candidates to enable high‐performance, stable, and low‐toxic perovskite solar cells. It is expected that meticulous efforts will be required to improve perovskite film quality, device architecture, and fabrication techniques and push the efficiency closer to the theoretical Shockley–Queisser threshold value of over 30% in single‐junction perovskite solar cells.