Improvement in Open-Circuit Voltage of Thin Film Solar Cells from Aqueous Nanocrystals by Interface Engineering

Xiaohang Du; Zhaolai Chen; Fangyuan Liu; Qingsen Zeng; Gan Jin; Fenghong Li; Dong Yao; Bai Yang

doi:10.1021/acsami.5b10374

Improvement in Open-Circuit Voltage of Thin Film Solar Cells from Aqueous Nanocrystals by Interface Engineering

ACS Appl Mater Interfaces. 2016 Jan 13;8(1):900-7. doi: 10.1021/acsami.5b10374. Epub 2015 Dec 24.

Authors

Xiaohang Du¹, Zhaolai Chen¹, Fangyuan Liu¹, Qingsen Zeng¹, Gan Jin¹, Fenghong Li¹, Dong Yao¹, Bai Yang¹

Affiliation

¹ State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China.

PMID: 26670604
DOI: 10.1021/acsami.5b10374

Abstract

In this work, improved solar cells from aqueous CdTe NCs is achieved by replacing evaporated MoOx with spiro-OMeTAD as a hole transfer layer. The increased Voc and Jsc can be attributed to interfacial dipole effect and reduced back recombination loss, respectively. A high PCE of 6.56% for solar cells from aqueous NCs is obtained by optimizing the microstructure further.

Keywords: aqueous nanocrystals; back recombination; enhanced open-circuit voltage; interfacial dipole; microstructure.

Publication types

Research Support, Non-U.S. Gov't