Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers

In this paper, we demonstrate photocurrent generation from nanostructured layer-by-layer (LbL) ultrathin films consisting of chromophores and single-walled carbon nanotubes (SWNT). We fabricated 5,10,15,20-tetrakis(1- methyl-4-pyridinio)porphyrin tetr (p-toluenesulfonate) (TMPyP)-SWNT/sodium copper...

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Main Authors: Akira Baba, Taihei Matsuzawa, Saengrawee Sriwichai, Yasuo Ohdaira, Kazunari Shinbo, Keizo Kato, Sukon Phanichphant, Futao Kaneko
Format: Journal
Published: 2018
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spelling th-cmuir.6653943832-506612018-09-04T04:48:11Z Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers Akira Baba Taihei Matsuzawa Saengrawee Sriwichai Yasuo Ohdaira Kazunari Shinbo Keizo Kato Sukon Phanichphant Futao Kaneko Chemistry Energy Materials Science In this paper, we demonstrate photocurrent generation from nanostructured layer-by-layer (LbL) ultrathin films consisting of chromophores and single-walled carbon nanotubes (SWNT). We fabricated 5,10,15,20-tetrakis(1- methyl-4-pyridinio)porphyrin tetr (p-toluenesulfonate) (TMPyP)-SWNT/sodium copper chlorophyllin (SCC)-SWNT LbL film from noncovalently adsorbed composites. SWNT were dissolved in water-soluble cationic TMPyP and anionic SCC, and the resulting solutions were used for electrostatic LbL multilayer fabrication. The solubility of SWNT in water was studied by UV-vis absorption spectroscopy. The composites were highly dispersed owing to the π-π interactions. The fluorescence spectroscopy measurements showed efficient quenching of TMPyP and SCC fluorescence, which was due to the interaction with SWNT. In situ surface plasmon resonance spectroscopy during the LbL multilayer fabrication indicated a stepwise increase in reflectivity, implying the successive formation of nanostructured hybrid ultrathin films. Cyclic voltammetry revealed that the electroactivity of the hybrid film was enhanced by the incorporation of SWNT. The composite LbL film electrode exhibited an enhancement of photocurrent compared to a TMPyP/SCC (no SWNT) film electrode, suggesting efficient charge separation and electron transfer in the system. © 2010 American Chemical Society. 2018-09-04T04:43:34Z 2018-09-04T04:43:34Z 2010-09-09 Journal 19327455 19327447 2-s2.0-79951624712 10.1021/jp103121m https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79951624712&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50661
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemistry
Energy
Materials Science
spellingShingle Chemistry
Energy
Materials Science
Akira Baba
Taihei Matsuzawa
Saengrawee Sriwichai
Yasuo Ohdaira
Kazunari Shinbo
Keizo Kato
Sukon Phanichphant
Futao Kaneko
Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
description In this paper, we demonstrate photocurrent generation from nanostructured layer-by-layer (LbL) ultrathin films consisting of chromophores and single-walled carbon nanotubes (SWNT). We fabricated 5,10,15,20-tetrakis(1- methyl-4-pyridinio)porphyrin tetr (p-toluenesulfonate) (TMPyP)-SWNT/sodium copper chlorophyllin (SCC)-SWNT LbL film from noncovalently adsorbed composites. SWNT were dissolved in water-soluble cationic TMPyP and anionic SCC, and the resulting solutions were used for electrostatic LbL multilayer fabrication. The solubility of SWNT in water was studied by UV-vis absorption spectroscopy. The composites were highly dispersed owing to the π-π interactions. The fluorescence spectroscopy measurements showed efficient quenching of TMPyP and SCC fluorescence, which was due to the interaction with SWNT. In situ surface plasmon resonance spectroscopy during the LbL multilayer fabrication indicated a stepwise increase in reflectivity, implying the successive formation of nanostructured hybrid ultrathin films. Cyclic voltammetry revealed that the electroactivity of the hybrid film was enhanced by the incorporation of SWNT. The composite LbL film electrode exhibited an enhancement of photocurrent compared to a TMPyP/SCC (no SWNT) film electrode, suggesting efficient charge separation and electron transfer in the system. © 2010 American Chemical Society.
format Journal
author Akira Baba
Taihei Matsuzawa
Saengrawee Sriwichai
Yasuo Ohdaira
Kazunari Shinbo
Keizo Kato
Sukon Phanichphant
Futao Kaneko
author_facet Akira Baba
Taihei Matsuzawa
Saengrawee Sriwichai
Yasuo Ohdaira
Kazunari Shinbo
Keizo Kato
Sukon Phanichphant
Futao Kaneko
author_sort Akira Baba
title Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
title_short Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
title_full Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
title_fullStr Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
title_full_unstemmed Enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
title_sort enhanced photocurrent generation in nanostructured chromophore/carbon nanotube hybrid layer-by-layer multilayers
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79951624712&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50661
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