This invention relates to an optoelectronic and/or photovoltaic device comprising acompound used as crystal defect mitigating agent or passivating agent, said compound beingselected from a compound of formula (I),a compound of formula (II),a mixture thereof, or a compound of formula (III) being selected from anyone of formulae(III.1), (III.2). (III.3), (IlI4) and (III.5) below.
Shaik Mohammed Zakeeruddin, Zhongjin Shen, Yelin Hu, Hongwei Zhu, Yinghui Wu, Jialin Wang, Miao Chen
Mohammad Khaja Nazeeruddin, Filippo de Angelis, Konstantina Kalliopi Armadorou