and continued her postdoctoral training in UNIST with Prof. Changduk Yang. In April 2019, she joined the School of Energy & Power EngineeringinC hongqing University (China) and works as an Assistant Professor. Her research interests focus on functional semiconductors for flexible photovoltaic and thermoelectric devices. Zhe Sun is studying in the School of Renewable Energy Science & Engineering, Department of Energy & Power Engineeringi n ChongqingU niversity.In2017, he joined Prof. Kuan Sun's group and his research interests focus on silicon solar cells and organic stretchable materials. Ya He is an undergraduate at Chongqing University.S he studied Renewable Energy Science & Engineeringf or three years and is now studying in Material Science. In 2017, she joined Prof. Kuan Sun's group and her research interests focus on silicon and perovskite solar cells, catalysts for oxygen evolution reaction, and conducting polymers. Banglun Xiong is studying in the School of Renewable Energy Science & Engineering, Department of Energy & Power Engineering in Chongqing University.I n2017, he joined Prof. Kuan Sun's group and his research interests focus on the development of silicon and perovskites olar cells.