DataVXACS Energy LettersPaper
journal article·2023-07-14Open access

Nickel-Doped Graphite and Fusible Alloy Bilayer Back Electrode for Vacuum-Free Perovskite Solar Cells

Mengyuan Li, So Yeon Park, Jianxin Wang, Ding Zheng, Owen S. Wostoupal, Xudong Xiao, Zhenzhen Yang, Xun Li, Benjamin T. Diroll, Tobin J. Marks, Kai Zhu, Tao Xu

ACS Energy Letters· Volume 8· Issue 7
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Source abstract

Abstract

With the rapid development of perovskite solar cells (PSCs), lowering fabrication costs for PSCs has become a prominent challenge for commercialization. At present, gold is commonly used as the back metal electrode in state-of-the-art n-i-p structured PSCs due to its compatible work function, chemical inertness, and high conductivity. However, the high cost of gold and the expensive and time-consuming vacuum-based thin-film coating facilities may impede large-scale industrialization of PSCs. Here, we report a bilayer back electrode configuration consisting of an Ni-doped natural graphite layer with a fusible Bi-In alloy. This back electrode can be deposited in a vacuum-free approach and enables PSCs with a power conversion efficiency of 21.0%. These inexpensive materials and facile ambient fabrication techniques provide an appealing disruptive solution to low-cost PSC industrialization.
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Research context

Metals & alloysElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Advanced battery technologies research · Conducting polymers and applications

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

Affiliations

Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States

Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States

Department of Chemistry and the Materials Research Center, Northwestern University, Evanston, Illinois 60208, United States

Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States

Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, Illinois 60439, United States

Funding

National Renewable Energy Laboratory · Office of Naval Research · Division of Materials Research

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