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Improvement in Open-Circuit Voltage of Thin Film Solar Cells from Aqueous Nanocrystals by Interface Engineering
Xiaohang Du1, Zhaolai Chen1, Fangyuan Liu1
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China.
ACS Applied Materials & Interfaces
|December 17, 2015
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 nanocrystalsback recombinationenhanced open-circuit voltageinterfacial dipolemicrostructure
