Synergistic Interface Modification of Electron-Beam-Evaporated NiOx for High-Performance Perovskite Solar Cells.

IF 8.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-10-23 DOI:10.1021/acsami.5c15868

Qiyu Shi,Le Wei,Yudong Shao,Jiale Su,Bitao Chen,Disheng Yao,Jilin Wang,Shuyi Mo,Bing Zhou,Guoyuan Zheng,Fei Long

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Abstract

Nickel oxide (NiOx) is considered an ideal hole transport layer (HTL) in inverted perovskite solar cells (PSCs) due to its excellent carrier mobility and low cost. Electron-beam-evaporated NiOx (E-beam-NiOx) exhibits exceptional commercial potential due to its process compatibility. However, there are surface defects in E-beam-NiOx, which are incompatible with perovskite (PVK) and limit its development. In this work, we used [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) as a self-assembled monolayer (SAM) and l-α-glycerylphosphorylcholine (GPC) to double modify the buried interface of E-beam-NiOx films. SAM is used to modify interface defects of NiOx, while GPC improves the wetting property and uniformity of the interface. Under the joint modification of SAM and GPC, the interface defects of NiOx films were passivated, and the hole extraction ability of HTL was improved. At the same time, the growth quality of PVK films was improved, and the energy level matching between NiOx and PVK was optimized. After optimization, the small-area (0.0575 cm2) PSCs achieved a champion power conversion efficiency (PCE) of 23.31%, providing an effective strategy and direction for the preparation of high-efficiency PSCs by E-beam-NiOx.

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电子束蒸发氧化镍在高性能钙钛矿太阳能电池中的协同界面改性。

氧化镍（NiOx）由于其优良的载流子迁移率和低廉的成本被认为是倒钙钛矿太阳能电池（PSCs）中理想的空穴传输层（HTL）。电子束蒸发NiOx （E-beam-NiOx）由于其工艺兼容性而具有非凡的商业潜力。然而，E-beam-NiOx表面存在与钙钛矿（PVK）不相容的缺陷，限制了其发展。在这项工作中，我们使用[4-（3,6-二甲基- 9h -咔唑-9-基）丁基]膦酸（Me-4PACz）作为自组装单层（SAM）和1 -α-甘油酰磷胆碱（GPC）双重修饰e-束- niox薄膜的埋设界面。采用SAM改性NiOx的界面缺陷，采用GPC改性NiOx的界面润湿性和均匀性。在SAM和GPC的共同改性下，钝化了NiOx膜的界面缺陷，提高了HTL的抽孔能力。同时提高了PVK薄膜的生长质量，优化了NiOx与PVK之间的能级匹配。优化后的小面积（0.0575 cm2） PSCs获得了23.31%的冠军功率转换效率（PCE），为e -束- niox制备高效PSCs提供了有效的策略和方向。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.