Chloride Passivation of ZnO Electrodes Improves Charge Extraction in Colloidal Quantum Dot Photovoltaics

Jongmin Choi, Younghoon Kim, Jea Woong Jo, Junghwan Kim, Bin Sun, Grant Walters, F. Pelayo García de Arquer, Rafael Quintero-Bermudez, Yiying Li, Chih Shan Tan, Li Na Quan, Andrew Pak Tao Kam, Sjoerd Hoogland, Zhenghong Lu, Oleksandr Voznyy^*, Edward H. Sargent