Chemical vapor deposition (CVD) graphene has been used as an effective structural template to manipulate molecular orientation of organic thin film of chloroaluminium phthalocyanine (ClAlPc) on indium tin oxide (ITO) electrode. As revealed by in-situ near-edge x-ray adsorption fine structure measurement, ClAlPc molecules on the CVD graphene modified ITO electrode adopt a well-aligned lying-down configuration with their molecular π-plane nearly parallel to the electrode surface, in contrast to the random orientation of ClAlPc molecules on the bare ITO electrode. This lying-down configuration results in an optimized stacking of the molecular π-plane perpendicular to the electrode surface and hence facilitates efficient charge transport along this direction.
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29 August 2011
Research Article|
August 29 2011
Chemical vapor deposition graphene as structural template to control interfacial molecular orientation of chloroaluminium phthalocyanine
Hong Ying Mao;
Hong Ying Mao
1Department of Chemistry,
National University of Singapore
, 3 Science Drive 3, Singapore 117543, Singapore
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Rui Wang;
Rui Wang
2Department of Physics,
National University of Singapore
, 2 Science Drive 3, Singapore 117542, Singapore
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Yu Wang;
Yu Wang
1Department of Chemistry,
National University of Singapore
, 3 Science Drive 3, Singapore 117543, Singapore
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Tian Chao Niu;
Tian Chao Niu
1Department of Chemistry,
National University of Singapore
, 3 Science Drive 3, Singapore 117543, Singapore
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Jian Qiang Zhong;
Jian Qiang Zhong
2Department of Physics,
National University of Singapore
, 2 Science Drive 3, Singapore 117542, Singapore
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Ming Yang Huang;
Ming Yang Huang
1Department of Chemistry,
National University of Singapore
, 3 Science Drive 3, Singapore 117543, Singapore
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Dong Chen Qi;
Dong Chen Qi
2Department of Physics,
National University of Singapore
, 2 Science Drive 3, Singapore 117542, Singapore
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Kian Ping Loh;
Kian Ping Loh
1Department of Chemistry,
National University of Singapore
, 3 Science Drive 3, Singapore 117543, Singapore
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Andrew Thye Shen Wee;
Andrew Thye Shen Wee
2Department of Physics,
National University of Singapore
, 2 Science Drive 3, Singapore 117542, Singapore
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Authors to whom correspondence should be addressed. Electronic mail: [email protected].
Appl. Phys. Lett. 99, 093301 (2011)
Article history
Received:
July 03 2011
Accepted:
August 07 2011
Citation
Hong Ying Mao, Rui Wang, Yu Wang, Tian Chao Niu, Jian Qiang Zhong, Ming Yang Huang, Dong Chen Qi, Kian Ping Loh, Andrew Thye Shen Wee, Wei Chen; Chemical vapor deposition graphene as structural template to control interfacial molecular orientation of chloroaluminium phthalocyanine. Appl. Phys. Lett. 29 August 2011; 99 (9): 093301. https://doi.org/10.1063/1.3629812
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