Morphology and Performance Enhancement through the Strong Passivation Effect of Amphoteric Ions in Tin‐based Perovskite Solar Cells (Small 39/2023)

Perovskite Solar CellsIn article number 2302418, Hyungjun Kim, Ki‐Ha Hong, Sang Hyuk Im, Chang Eun Song, and co‐workers demonstrate a defect‐passivation strategy using L‐asparagine, which can effectively suppress tin oxidation. L‐asparagine as a zwitterion revolutionizes film morphology and energy‐l...

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Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2023-09, Vol.19 (39)
Main Authors: Ryu, Du Hyeon, Khan, Nasir, Park, Jong‐Goo, Paik, Dooam, Kang, Bong Joo, Jeon, Nam Joong, Lee, Seungjin, Lee, Hang Ken, Lee, Sang Kyu, Shin, Won Suk, Lee, Jong‐Cheol, Kim, Hyungjun, Hong, Ki‐Ha, Im, Sang Hyuk, Song, Chang Eun
Format: Article
Language:English
Subjects:
Energy conversion efficiency
Morphology
Nanotechnology
Oxidation
Passivity
Perovskites
Photovoltaic cells
Solar cells
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Summary:Perovskite Solar CellsIn article number 2302418, Hyungjun Kim, Ki‐Ha Hong, Sang Hyuk Im, Chang Eun Song, and co‐workers demonstrate a defect‐passivation strategy using L‐asparagine, which can effectively suppress tin oxidation. L‐asparagine as a zwitterion revolutionizes film morphology and energy‐level matching, boosting power conversion efficiency to a remarkable 13.31%. Surpassing limitations are tied to tin halide perovskite instability. This work offers transformative insights and practical strategies for advancing tin‐based perovskite electronic devices.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.202370321