Liu Chang-Wen, Zhou Xun, Yue Wen-Jin, Wang Ming-Tai, Qiu Ze-Liang, Meng Wei-Li, Chen Jun-Wei, Qi Juan-Juan, Dong Chao. Hybrid polymer-based solar cells with metal oxides as the main electron acceptor and transporterJ. Acta Physica Sinica, 2015, 64(3): 038804. DOI: 10.7498/aps.64.038804