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Doping-based control of the energetic structure of photovoltaic co-deposited films
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22.When one assumes the phase separation of 6T and C60, the energetic structure of the bulk of a co-deposited layer such as 6T/C60/6T/C60 can be depicted based on the measured values of EFs for C60 and 6T single layers and for a C60:6T co-deposited layer. For the MoO3-doped p-type case, holes are suggested to be mainly transported through the 6T region.
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/content/aip/journal/apl/99/13/10.1063/1.3643045
2011-09-26
2014-09-30

Abstract

Control of the energetic structure of photovoltaic co-deposited films consisting of fullerene and α-sexithiophene was demonstrated by ppm-level doping with molybdenum oxide (MoO3). The transition from an n-type Schottky junction via a metal/insulator/metal junction to a p-type Schottky junction by increasing the MoO3doping concentration was verified by observing the photovoltaic properties. Direct ppm-level doping into photoactive co-deposited films could become a powerful tool for designing the appropriate built-in potential for efficient organic photovoltaiccells.

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Scitation: Doping-based control of the energetic structure of photovoltaic co-deposited films
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/13/10.1063/1.3643045
10.1063/1.3643045
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