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Graphene oxide hole transport layers for large area, high efficiency organic solar cells

Smith, CTG, Rhodes, RW, Beliatis, MJ, Jayawardena, KDGI, Rozanski, LJ, Mills, CA and Silva, SRP (2014) Graphene oxide hole transport layers for large area, high efficiency organic solar cells Applied Physics Letters, 105 (7), 073304.

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Abstract

Graphene oxide (GO) is becoming increasingly popular for organic electronic applications. We present large active area (0.64 cm^2), solution processable, poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl]:[6,6]-Phenyl C71 butyric acid methyl ester (PCDTBT:PC70BM) organic photovoltaic (OPV) solar cells, incorporating GO hole transport layers (HTL). The power conversion efficiency (PCE) of ~5% is the highest reported for OPV using this architecture. A comparative study of solution-processable devices has been undertaken to benchmark GO OPV performance with poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) HTL devices, confirming the viability of GO devices, with comparable PCEs, suitable as high chemical and thermal stability replacements for PEDOT:PSS in OPV.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Authors :
AuthorsEmailORCID
Smith, CTGUNSPECIFIEDUNSPECIFIED
Rhodes, RWUNSPECIFIEDUNSPECIFIED
Beliatis, MJUNSPECIFIEDUNSPECIFIED
Jayawardena, KDGIUNSPECIFIEDUNSPECIFIED
Rozanski, LJUNSPECIFIEDUNSPECIFIED
Mills, CAUNSPECIFIEDUNSPECIFIED
Silva, SRPUNSPECIFIEDUNSPECIFIED
Date : 12 August 2014
Identification Number : 10.1063/1.4893787
Uncontrolled Keywords : Graphene oxide, Hole transport layer, Organic Photovoltaics, Solar cells
Related URLs :
Additional Information :

Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in Applied Physics Letters, 105 (7) and may be found at http://dx.doi.org/10.1063/1.4893787

Depositing User : Symplectic Elements
Date Deposited : 09 Sep 2014 10:13
Last Modified : 09 Sep 2014 13:33
URI: http://epubs.surrey.ac.uk/id/eprint/805887

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