Mixed metal oxide systems for organic photovoltaics

Author

Berry, Joseph J. ; White, Matthew S. ; Widjonako, N. Edwin ; Bailey, Brian A. ; Sigdel, Ajaya K. ; Gorrie, Christopher W. ; Kopidakis, Nikos ; Ginley, David S. ; Olson, Dana C.

Author_Institution

Nat. Renewable Energy Lab., Golden, CO, USA

fYear

2009

fDate

7-12 June 2009

Abstract

We have employed mixed metal oxide materials in various roles in organic and hybrid-organic photovoltaic (OPV/h-OPV) devices. In the case of the bulk heterojunction (BHJ) devices we have used an inorganic HTL layer (NiO) constructed by pulsed laser deposition (PLD) to replace the standard PEDOT:PSS HTL in a poly(3-hexythiophene):[6,6]-phenyl C61-butyric acid methyl ester (P3HT:PCBM) BHJ OPV device. We have also examined in detail the changes in the electric field at the polymer-oxide interface in planar P3HT;metal oxide h-OPV devices both with experimental studies and through modeling of the h-OPV polymer/acceptor interface. For our h-OPV experimental studies we examine ZnO, TiO₂ and Nb:TiO₂ acceptors constructed using PLD in which the doping levels have been controlled using a digital modulation scheme.

Keywords

II-VI semiconductors; niobium; photovoltaic cells; polymers; pulsed laser deposition; semiconductor doping; titanium compounds; zinc compounds; TiO₂; TiO₂:Nb; ZnO; bulk heterojunction devices; digital modulation scheme; doping levels; h-OPV polymer-acceptor interface; hybrid-organic photovoltaic devices; mixed metal oxide systems; organic photovoltaics; planar P3HT;metal oxide h-OPV devices; poly(3-hexythiophene):[6,6]-phenyl C61-butyric acid methyl ester; polymer-oxide interface; pulsed laser deposition; Heterojunctions; Inorganic materials; Laser modes; Optical materials; Optical pulses; Organic materials; Photovoltaic cells; Polymers; Pulsed laser deposition; Semiconductor process modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE

Conference_Location

Philadelphia, PA

ISSN

0160-8371

Print_ISBN

978-1-4244-2949-3

Electronic_ISBN

0160-8371

Type

conf

DOI

10.1109/PVSC.2009.5411320

Filename

5411320