Jump to main content
Jump to site search

Issue 7, 2011
Previous Article Next Article

Inverted organic photovoltaic devices with high efficiency and stability based on metal oxide charge extraction layers

Author affiliations

Abstract

A substantial increase in device performance and operational stability in solution processed inverted bulk heterojunction (BHJ) organic photovoltaic devices (OPV) is demonstrated by introducing a zinc oxide (ZnO) interlayer between the electron collecting bottom electrode and the photoactive blend of poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM). The structure and morphology of the dense, planar ZnO layers were controlled either by electro-deposition or spray pyrolysis techniques. Metal oxide sandwich OPV devices based on the photoactive blend on an electro-deposited ZnO interlayer with a (100) preferential crystal orientation, and using a tungsten oxide (WOx) interlayer on the opposite electrode, resulted in a remarkable increase in power conversion efficiency with a value of 4.91% under AM1.5 illumination and an external quantum efficiency of 74%. Electro-deposition of the ZnO at low temperature proved to be the most promising method for forming the ZnO interlayers, allowing the highest control of film structure and morphology, as well as leading to significantly improved device efficiency and stability.

Graphical abstract: Inverted organic photovoltaic devices with high efficiency and stability based on metal oxide charge extraction layers

Back to tab navigation

Publication details

The article was received on 10 Sep 2010, accepted on 15 Nov 2010 and first published on 22 Dec 2010


Article type: Paper
DOI: 10.1039/C0JM03048A
Citation: J. Mater. Chem., 2011,21, 2381-2386
  •   Request permissions

    Inverted organic photovoltaic devices with high efficiency and stability based on metal oxide charge extraction layers

    S. Schumann, R. Da Campo, B. Illy, A. C. Cruickshank, M. A. McLachlan, M. P. Ryan, D. J. Riley, D. W. McComb and T. S. Jones, J. Mater. Chem., 2011, 21, 2381
    DOI: 10.1039/C0JM03048A

Search articles by author

Spotlight

Advertisements