Next-Generation Solar Cell Research Project

Introduction

The topic of this research aims to develop the techniques of highly efficient 2-terminal perovskite-Si tandem solar cells. We intend to stack two kinds of solar cells (the perovskite-based solar cells and Si-based cells) with different optical working spectra into one device. This strategy would overcome the Shockley-Queisser limit in the power conversion efficiency (PCE) of the single-junction solar cells. We target several techniques to fabricate the perovskite-Si tandem solar cell modulus with PCE higher than 30%. The higher PCE magnitude increases the total electric power density generated per unit area and reduces the emission of greenhouse gases, which is one of the strategies to achieve the national goal of net-zero emissions.

Laboratory contact number:06-216-7809

 

Principal investigator

Chih-Wei Chu gchu@as.edu.tw
Principal investigator

Tzung-Fang Guo guotf@as.edu.tw

Jointly Appointed Researcher

Name Affiliation
Lin, Hao-Wu

National Tsing Hua University, Department of Materials Science and Engineering

Haung, Yu-Ching

Ming Chi University of Technology, Department of Materials Engineering

Chen, Chao-Yu Peter

National Cheng Kung University, Department of Photonics

Wei, Tzu-Chien

National Tsing Hua University, Department of Chemical Engineering

Major Milestones of the Project

Our team developed a perovskite-silicon tandem solar cell, achieving significant advancements by repeatedly breaking our own records for a cell area of 1 cm² within a year. With a customized Heterojunction (HJT) substrate, it reached 30.1% efficiency and 27.3% on a commercial Tunnel Oxide Passivating Contacts (TOPCon) substrate. These breakthroughs result from optimizing the transport layers and developing high-quality perovskite structures.(Detailed information:https://www.sinica.edu.tw/en/News_Content/55/3044)

Research results video