DataVXACS Energy LettersPaper
journal article·2025-07-11

Damp-Stable Perovskite/Silicon Tandem Solar Cells with Internal Encapsulating Sulfonium-Based Molecules

Haowen Luo, Xinrui Han, Bowen Yang, Wennan Ou, Jiajia Suo, Hongfei Sun, Xuntian Zheng, Jiajia Hong, Zijing Chu, Lu Zhao, Shuncheng Yang, Pu Wu, Chenyang Duan, Chenshuaiyu Liu, Manya Li, Ludong Li, Renxing Lin, Wenchi Kong, Hairen Tan

ACS Energy Letters· Volume 10· Issue 7
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Source abstract

Abstract

Industrially textured perovskite/silicon tandem solar cells are among the most promising candidates for future low-cost photovoltaic deployment. Air-annealing is an inevitable process to fabricate high-quality perovskite films during the hybrid two-step deposition method. However, this process often leads to severe perovskite decomposition on the surface because of moisture exposure and high-temperature. To address this issue, a stabilizing additive─dimethylphenethylsulfonium iodide (DMPESI)─is introduced into the organic salt solution, forming a hydrophobic internal encapsulation layer. As a result, the perovskite surface decomposition is effectively suppressed during the air-annealing process and the resulting perovskite films exhibit significantly enhanced film stability and quality. Consequently, the industrially textured perovskite/silicon tandem solar cells delivered an impressive efficiency of 30.49% (1.21 cm 2 ). Moreover, encapsulated tandem devices retained 84% of their initial efficiency after nearly 1800 h of maximum power point tracking (MPPT) (ISOS-L-1) and 80% after 723 h of damp heat test (ISOS-D-3).
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics

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

Affiliations

National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling

Nanjing University

Department of Chemistry-Ångström Laboratory

Uppsala University

Dyenamo AB, Greenhouse Laboratories, Teknikringen 38A, SE-114 28 Stockholm, Sweden

Funding

National Key Research and Development Program of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · National Science Fund for Distinguished Young Scholars · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Frontiers Science Center for Critical Earth Material Cycling Fund · Program for Innovative Talents and Entrepreneur in Jiangsu · GeoX Interdisciplinary Research Funds for the Frontiers Science Center for Critical Earth Material Cycling, Nanjing University

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