DataVXACS Energy LettersPaper
journal article·2026-02-13

Efficient Perovskite–Cu(In,Ga)Se 2 Tandem Solar Cells Enabled by Coevaporation

Nengxu Li, Shuping Lin, Xiuxiu Niu, Zhenrong Jia, Ming Zhao, Ying Zhao, Yao Sun, Dalong Zhong, Yi Hou

ACS Energy Letters· Volume 11· Issue 2
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Source abstract

Abstract

We demonstrated perovskite–Cu(In,Ga)Se 2 (CIGS) tandem solar cells in which the perovskite top absorber is deposited by coevaporation, enabling highly uniform film formation on rough CIGS bottom cells. In addition, we introduced a compact tin oxide buffer layer on the zinc oxide surface, effectively preventing the detrimental Lewis acid–base reaction with the perovskite. A certified power conversion efficiency of 24.5% (1 cm 2 aperture area) is achieved from the resulting monolithic perovskite–CIGS tandems. This work establishes a scalable vacuum-based route for delivering high-efficiency perovskite–CIGS tandem photovoltaics.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · TiO2 Photocatalysis and Solar Cells

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Biomolecular Engineering

National University of Singapore

Solar Energy Research Institute of Singapore

National Institute of Clean-and-Low-Carbon Energy

Beijing Engineering Research Center of Nano-structured Thin Film Solar Cells

Funding

Economic Development Board - Singapore · Agency for Science, Technology and Research · Energy Market Authority of Singapore · Solar Energy Research Institute of Singapore, National University of Singapore · National Research Foundation Singapore · National University of Singapore · CHN Energy Investment Group

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