Surface-deprotonated ultra-small SnO2 quantum dots for high-performance perovskite solar cells

IF 32.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Energy & Environmental Science Pub Date : 2024-11-12 DOI:10.1039/d4ee03193h

Wuchen Xiang, Yiheng Gao, Bobo Yuan, Shuping Xiao, Rui Wu, Yiran Wan, Zhiqiang Liu, Liang Ma, Xiang-Bai Chen, Weijun Ke, Guojia Fang, Pingli Qin

引用次数: 0

Abstract

SnO₂ electron transport layers (ETLs) have improved perovskite solar cell (PSC) efficiencies but face issues with surface protonation, leading to energy loss and instability. We developed ultra-small (2.5 nm) SnO₂ quantum dots (QDs) ETLs that are surface-deprotonated. These ETLs reduce interface barriers and enhance electron transfer efficiency. PSCs using these SnO₂ QDs achieved a champion efficiency of 25.55% and improved stability, outperforming protonated SnO₂ QDs. Additionally, these ETLs showed superior performance in X-ray detectors.

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用于高性能过氧化物太阳能电池的表面质子化超小型 SnO2 量子点

二氧化锡电子传输层（ETL）提高了过氧化物太阳能电池（PSC）的效率，但面临着表面质子化的问题，导致能量损失和不稳定性。我们开发了表面去质子化的超小（2.5 nm）二氧化锡量子点（QDs）ETL。这些 ETL 减少了界面障碍，提高了电子转移效率。使用这些二氧化锰量子点的 PSCs 的冠军效率达到 25.55%，稳定性也有所提高，优于质子化二氧化锰量子点。此外，这些 ETL 在 X 射线探测器中也表现出了卓越的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy & Environmental Science 化学-工程：化工

CiteScore

50.50

自引率

2.20%

发文量

349

审稿时长

2.2 months

期刊介绍： Energy & Environmental Science, a peer-reviewed scientific journal, publishes original research and review articles covering interdisciplinary topics in the (bio)chemical and (bio)physical sciences, as well as chemical engineering disciplines. Published monthly by the Royal Society of Chemistry (RSC), a not-for-profit publisher, Energy & Environmental Science is recognized as a leading journal. It boasts an impressive impact factor of 8.500 as of 2009, ranking 8th among 140 journals in the category "Chemistry, Multidisciplinary," second among 71 journals in "Energy & Fuels," second among 128 journals in "Engineering, Chemical," and first among 181 scientific journals in "Environmental Sciences." Energy & Environmental Science publishes various types of articles, including Research Papers (original scientific work), Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest), Communications (original scientific work of an urgent nature), Opinions (personal, often speculative viewpoints or hypotheses on current topics), and Analysis Articles (in-depth examination of energy-related issues).