Poly(3-hexylthiophene) nanorods with aligned chain orientation for organic photovoltaics

Jong Soo Kim; Yunmin Park; Dong Yun Lee; Ji Hwang Lee; Jong Hwan Park; Jin Kon Kim; Kilwon Cho

doi:10.1002/adfm.200901760

Poly(3-hexylthiophene) nanorods with aligned chain orientation for organic photovoltaics

Jong Soo Kim, Yunmin Park, Dong Yun Lee, Ji Hwang Lee, Jong Hwan Park, Jin Kon Kim, Kilwon Cho

Pohang University of Science and Technology

Research output: Contribution to journal › Article › peer-review

181 Scopus citations

Abstract

A structured polymer solar cell architecture featuring a large interface between donor and acceptor with connecting paths to the respective electrodes is explored. To this end, poly-(3-hexylthiophene) (P3HT) nanorods oriented perpendicularly to indium tin oxide (ITO) glass are fabricated using an anodic aluminum oxide template. It is found that the P3HT chains in bulk films or nanorods are oriented differently; perpendicular or parallel to the ITO substrate, respectively. Such chain alignment of the P3HT nanorods enhanced the electrical conductivity up totenfold compared with planar P3HT films. Furthermore, the donor/acceptor contact area could be maximised using P3HT nanorods as donor and C60 as acceptor. In a photovoltaic device employing this structure, remarkable photoluminescence quenching (88%) and a seven-fold efficiency increase (relative to a device with a planar bilayer) are achieved.

Original language	English
Pages (from-to)	540-545
Number of pages	6
Journal	Advanced Functional Materials
Volume	20
Issue number	4
DOIs	https://doi.org/10.1002/adfm.200901760
State	Published - 22 Feb 2010

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title = "Poly(3-hexylthiophene) nanorods with aligned chain orientation for organic photovoltaics",

abstract = "A structured polymer solar cell architecture featuring a large interface between donor and acceptor with connecting paths to the respective electrodes is explored. To this end, poly-(3-hexylthiophene) (P3HT) nanorods oriented perpendicularly to indium tin oxide (ITO) glass are fabricated using an anodic aluminum oxide template. It is found that the P3HT chains in bulk films or nanorods are oriented differently; perpendicular or parallel to the ITO substrate, respectively. Such chain alignment of the P3HT nanorods enhanced the electrical conductivity up totenfold compared with planar P3HT films. Furthermore, the donor/acceptor contact area could be maximised using P3HT nanorods as donor and C60 as acceptor. In a photovoltaic device employing this structure, remarkable photoluminescence quenching (88%) and a seven-fold efficiency increase (relative to a device with a planar bilayer) are achieved.",

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AU - Kim, Jong Soo

AU - Park, Yunmin

AU - Lee, Dong Yun

AU - Lee, Ji Hwang

AU - Park, Jong Hwan

AU - Kim, Jin Kon

AU - Cho, Kilwon

PY - 2010/2/22

Y1 - 2010/2/22

N2 - A structured polymer solar cell architecture featuring a large interface between donor and acceptor with connecting paths to the respective electrodes is explored. To this end, poly-(3-hexylthiophene) (P3HT) nanorods oriented perpendicularly to indium tin oxide (ITO) glass are fabricated using an anodic aluminum oxide template. It is found that the P3HT chains in bulk films or nanorods are oriented differently; perpendicular or parallel to the ITO substrate, respectively. Such chain alignment of the P3HT nanorods enhanced the electrical conductivity up totenfold compared with planar P3HT films. Furthermore, the donor/acceptor contact area could be maximised using P3HT nanorods as donor and C60 as acceptor. In a photovoltaic device employing this structure, remarkable photoluminescence quenching (88%) and a seven-fold efficiency increase (relative to a device with a planar bilayer) are achieved.

AB - A structured polymer solar cell architecture featuring a large interface between donor and acceptor with connecting paths to the respective electrodes is explored. To this end, poly-(3-hexylthiophene) (P3HT) nanorods oriented perpendicularly to indium tin oxide (ITO) glass are fabricated using an anodic aluminum oxide template. It is found that the P3HT chains in bulk films or nanorods are oriented differently; perpendicular or parallel to the ITO substrate, respectively. Such chain alignment of the P3HT nanorods enhanced the electrical conductivity up totenfold compared with planar P3HT films. Furthermore, the donor/acceptor contact area could be maximised using P3HT nanorods as donor and C60 as acceptor. In a photovoltaic device employing this structure, remarkable photoluminescence quenching (88%) and a seven-fold efficiency increase (relative to a device with a planar bilayer) are achieved.

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Poly(3-hexylthiophene) nanorods with aligned chain orientation for organic photovoltaics

Abstract

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