Cascade surface modification of colloidal quantum dot inks enables efficient bulk homojunction photovoltaics

It is challenging to realize doping and surface passivation simultaneously in colloidal quantum dot inks. Here Choi et al. employ a cascade surface modification approach to solve the problem and obtain record high efficiency of 13.3% for bulk homojunction solar cells based on these inks.

Bibliographic Details
Main Authors: Min-Jae Choi, F. Pelayo García de Arquer, Andrew H. Proppe, Ali Seifitokaldani, Jongmin Choi, Junghwan Kim, Se-Woong Baek, Mengxia Liu, Bin Sun, Margherita Biondi, Benjamin Scheffel, Grant Walters, Dae-Hyun Nam, Jea Woong Jo, Olivier Ouellette, Oleksandr Voznyy, Sjoerd Hoogland, Shana O. Kelley, Yeon Sik Jung, Edward. H. Sargent
Format: Article
Language:English
Published: Nature Publishing Group 2020-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-13437-2