Pinhole-like carriers transport in spin-coating SiO2 enabling high-efficiency dopant-free Si solar cells - Jiawang Qiu; Zhongguo Zhou; Lijuan Zhang; Xiaomin Song; Sihua Zhong; Haipeng Yin; Rui Tong; Jinghong Zhang; Wenzhong Shen; Zengguang Huang (Chemical Engineering Journal, 2024)