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Merck

Organic photovoltaic solar cells with cathode modified by ZnO.

Journal of nanoscience and nanotechnology (2013-08-02)
Hyeong Pil Kim, Abd Rashid Bin Mohd Yusoff, Jin Jang
ABSTRACT

Solution processed cathode organic photovoltaic cells (OPVs) utilizing thin layer of ZnO with 27% increase in power conversion efficiency (PCE) to control devices have been demonstrated. Devices without the presence of ZnO layer have much lower PCE than the ones with ZnO layer. Cathode modification layer can be used to reduce photogenerated excitions and finally improve the performance of the OPVs. The successful demonstrations of OPVs with an introduction of ZnO cathode layer give promise of further device progresses.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Zinc oxide, 99.99% trace metals basis
Supelco
Zinc oxide, analytical standard
Sigma-Aldrich
Zinc oxide, puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5% (calc. for dried substance)
Sigma-Aldrich
Zinc oxide, ReagentPlus®, powder, <5 μm particle size, 99.9%
Sigma-Aldrich
Zinc oxide, puriss. p.a., ACS reagent, ≥99.0% (KT)
Sigma-Aldrich
Zinc oxide, 99.999% trace metals basis
Sigma-Aldrich
Zinc oxide, nanopowder, <100 nm particle size