Yi Hou is a Presidential Young Professor in the Department of Chemical and Biomolecular Engineering at the National University of Singapore (NUS). He was appointed the Head of the Perovskite-based Multijunction Solar Cell Group at the Solar Energy Research Institute of Singapore (SERIS) in September 2020. Yi obtained his Ph.D. degree (SAOT scholarship) in Materials Science and Engineering at the University of Erlangen-Nuremberg in Germany. His postdoctoral training in the Department of Electrical and Computer Engineering at the University of Toronto was mainly focused on photophysics and transport properties of the hybrid semiconductor in photovoltaics. Yi was recognized as one of the Innovators Under 35 (Asia Pacific) by MIT Tech Review due to his contributions to advancing perovskite-based tandem solar cell technology. In 2022, his achievement in setting a world record for the efficiency of a perovskite/organic tandem solar cell was documented in the ?Solar cell efficiency tables (Version 60)?. In 2023, the Hou Group set a new world record for single-junction perovskite solar cell efficiency (1 cm²), recognized in ?Solar cell efficiency tables (Version 62)?. Concurrently, Yi has been named a Clarivate Analytics Highly Cited Researchers in the field of Cross-Field category for the second consecutive year, from 2022 to 2023.

• Part I IntroductionPart II Perovskite/Silicon Tandem Solar Cell2 Introduction3 Laboratory-scale and factory-scale tandem configurations4 Perovskite/Silicon tandem solar cell5 Ttriple-junction perovskite/perovskite/silicon tandem solar cell6 Stability and failure mechanisms of perovskite/silicon tandem solar cell7 The scalability of perovskite/Silicon tandem solar cell8 Electrode metallization and encapsulation for perovskite/silicon tandem module9 LCOE evaluation of perovskite/silicon tandem solar cells10 Outlook and perspectivePart III Perovskite/Perovskite Tandem Solar CellPart IV Other Perovskite Based Tandem Solar Cell12 perovskite/CIGS tandem solar cell13 perovskite/OPV tandem solar cellPart V Future prospect and challenges