Local phase-modulated heterostructures for perovskite solar cells with high-efficiency and ultra-stability

IF 30.8 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Energy & Environmental Science Pub Date : 2025-07-07 DOI:10.1039/d5ee00897b

Yongjoon Cho, Donghwan Koo, Hak-Won Nho, Jeewon Park, Sangjin Yang, Ye-Jin Kim, Seonghun Jeong, Zhe Sun, Gyujeong Jeong, Eunbin Son, Oh-Hoon Kwon, Hyesung Park, Changduk Yang

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引用次数: 0

Abstract

Simultaneous effective defect passivation and excellent charge extraction can maximize the power conversion efficiency (PCE) of perovskite solar cells (PSCs). Unlike previously established heterojunction-based PSCs, we herein introduce a brand-new local phase-modulated heterostructure capable of exerting the aforementioned effects on PSCs, in which we incorporate a substantial quantity of a newly developed organic semiconductor (CY molecule) into the entire perovskite lattices, as well as the surface and grain boundaries. A promising PCE of 26.0% (certified at 25.28%) is realized by the local phase-modulated heterostructure PSC. Various characterizations confirm the key reasons for the superior performance in the CY-incorporated device over the reference device without CY. In CY-incorporated devices, we also demonstrate outstanding 96% and 71% PCE retentions for the unencapsulated (85% relative humidity (RH), 25°C, 2,000 h) and encapsulated (85% RH, 85°C, 1,000 h) cells, respectively, and achieve PCE of 22.7% for a 1.0-cm2 large cell.

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高效超稳定钙钛矿太阳能电池的局部相位调制异质结构

有效的缺陷钝化和良好的电荷提取可以使钙钛矿太阳能电池的功率转换效率（PCE）最大化。与先前建立的基于异质结的PSCs不同，我们在这里引入了一种全新的局部相位调制异质结构，能够对PSCs施加上述影响，其中我们将大量新开发的有机半导体（CY分子）纳入整个钙钛矿晶格，以及表面和晶界。本相调制异质结构PSC实现了26.0%的PCE（经认证为25.28%）。各种特性证实了CY集成器件优于无CY的参考器件的关键原因。在CY集成器件中，我们还展示了未封装（85%相对湿度（RH）， 25°C, 2,000 h）和封装（85% RH, 85°C, 1,000 h）电池的PCE保留率分别为96%和71%，并且在1.0 cm2的大电池中实现了22.7%的PCE保留率。

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).