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Quantum Dot Solar Cell Fabrication Protocols

Boris D Chernomordik, Ashley R Marshall, Gregory F. Pach, Joseph M. Luther, and Matthew C. Beard
Chem. Mater., Just Accepted Manuscript
DOI: 10.1021/acs.chemmater.6b02939
Publication Date (Web): September 26, 2016
Copyright © 2016 American Chemical Society
Abstract
Colloidally synthesized quantum-confined semiconducting spherical nanocrystals, often referred to as quantum dots (QDs), offer a high degree of chemical, optical, and electronic tunability. As a result, there is an increasing interest in employing colloidal QDs for electronic and optical applications that is reflected in a growing number of publications. In this protocol we provide detailed procedures for the fabrication of QD solar cells specifically employing PbSe and PbS QDs. We include details that are learned through experience, beyond those in typical methodology sections, and include example pictures and videos to aid researchers new to fabricating QD solar cells. While successful solar cell fabrication is ultimately learned through experience, this protocol is intended to accelerate that process. The protocol developed here is intended to be a general starting point for developing PbS and PbSe QD test bed solar cells. We include steps for forming conductive QD films via dip coating as well as spin coating. Finally, we provide protocols that detail the synthesis of PbS and PbSe QDs through a unique cation exchange reaction and discuss how different QD synthetic routes could impact the resulting solar cell performance.

http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b02939