Performance enhancement of ZnO nanowires/PbS quantum dot depleted bulk heterojunction solar cells with an ultrathin Al<sub>2</sub>O<sub>3</sub> interlayer

Performance enhancement of ZnO nanowires/PbS quantum dot depleted bulk heterojunction solar cells with an ultrathin Al₂O₃ interlayer

Zang Shuaipu¹, Wang Yinglin^{1, 2, †}, Li Meiying¹, Su Wei¹, An Meiqi¹, Zhang Xintong^{1, 2, ‡}, Liu Yichun^{1, 2}

(color online) Light intensity dependence of (a) and (b) ; (c) activation energy calculation from temperature dependence of with light intensity of 100 mW/cm²; (d) different electron lifetime of two cells inferred from their open-circuit photovoltage decay behavior; (e) density of states of two cells calculated from charge extraction measurements.