| Literature DB >> 26576685 |
Xinzheng Lan1, Oleksandr Voznyy1, Amirreza Kiani1, F Pelayo García de Arquer1, Abdullah Saud Abbas1, Gi-Hwan Kim1, Mengxia Liu1, Zhenyu Yang1, Grant Walters1, Jixian Xu1, Mingjian Yuan1, Zhijun Ning2, Fengjia Fan1, Pongsakorn Kanjanaboos1, Illan Kramer1, David Zhitomirsky1, Philip Lee1, Alexander Perelgut1, Sjoerd Hoogland1, Edward H Sargent1.
Abstract
A solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be built while preserving efficient charge collection, leading to a certified power conversion efficiency of 9.9%, which is a new record in CQD solar cells.Entities:
Keywords: PbS quantum dots; molecular iodine; passivation; solar cells
Year: 2015 PMID： 26576685 DOI： 10.1002/adma.201503657
Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849