Journal
MATERIALS TODAY NANO
Volume 7, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mtnano.2019.100045
Keywords
Crystalline silicon solar cell; Perovskite/silicon tandem; Homojunction; Heterojunction
Funding
- National Key Research and Development Program of China [2018YFB1500103]
- National Natural Science Foundation of China [61674084]
- Overseas Expertise Introduction Project for Discipline Innovation of Higher Education of China [B16027]
- Tianjin Science and Technology Project [18ZXJMTG00220]
- Fundamental Research Funds for the Central Universities, Nankai University [63191736, ZB19500204]
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Perovskite/silicon tandem solar cells have reached certified efficiencies of 28% (on 1 cm(2) by Oxford PV) in just about 4 years, mostly driven by the optimized design in the perovskite top cell and crystalline silicon (c-Si) bottom cell. In this review, we focus on the structural adjustment of the bottom cell based on the structural evolution of monolithic perovskite/silicon tandem solar cells to improve their performance. To begin with, c-Si solar cells are classified into silicon homojunction and silicon heterojunction (SHJ) devices according to temperature tolerance, and the corresponding structural features are presented. Then, the evolution of monolithic perovskite/silicon tandem cells based on c-Si homojunction and heterojunction bottom devices is summarized. An appropriate candidate of the c-Si bottom cell for monolithic perovskite/silicon tandem cells is proposed, mainly including passivated emitter and rear cell devices, the tunnel oxide passivated contact cell, and SHJ devices. In brief, our review will emphasize the important role of the c-Si bottom cell with different passivation structures for perovskite/silicon tandem cells, which provides a guidance to enhance the performance of tandem cells. (C) 2019 Elsevier Ltd. All rights reserved.
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