Suppressing series resistance in organic solar cells by oxygen plasma treatment
Resource
Appl. Phys. Lett.,92,233302-0.
Applied Physics Letters 92: 233302
Journal
Applied Physics Letters
Journal Volume
92
Journal Issue
23
Pages
233302-1 - 233302-3
Date Issued
2008
Author(s)
Abstract
We demonstrate a low series resistance contact of gold (anode)/zinc- phthalocyznine in a reverse organic photovoltaic device aided by oxygen plasma treatment. The power conversion efficiency appreciated from 0.2% to 2.13%, post O2 plasma treatment, predominantly due to the reduction in the series resistance of the device. A depth profile of zinc from x-ray photoelectron spectroscopy study revealed a gold layer with graded zinc composition, instead of pure gold, to be an efficient hole-collector from the organic interface. The zinc alloying of the gold layer has clearly been promoted by the oxygen plasma treatment. ? 2008 American Institute of Physics.
Other Subjects
Direct energy conversion; Gold; Health; Molecular orbitals; Molecular spectroscopy; Nanostructured materials; Nonmetals; Oxygen; Photoelectron spectroscopy; Plasma (human); Plasma applications; Plasmas; Solar cells; Solar energy; Solar power generation; Spectrum analysis; X ray spectroscopy; Zinc; Zinc sulfide; American Institute of Physics (AIP); Collector (flotation); depth profiling; Gold layers; O2-plasma treatment; Organic interfaces; Organic photovoltaic; Organic solar cells (OSC); Oxygen plasma treatments; Power-conversion efficiency (PCE); Series resistance (ESR); X ray photoelectron spectroscopy (XPS); X ray photoelectron spectroscopy
Publisher
American Institute of Physics
Type
journal article