Random nitroxide radical conjugated polymer additives enable 19.32 % efficiency of organic solar cells - Pengzhi Guo; Yuyan Tao; Junhong Liang; Furong Shi; Xunchang Wang; Zhengyu Zhu; Yongsheng Xiang; Renqiang Yang; Ergang Wang; Yangjun Xia (Chemical Engineering Journal, 2025)