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Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications
The interfacial electronic structures of a bilayer of fullerene (C(60)) and zinc phthalocyanine (ZnPc) grown on vanadium pentoxide (V(2)O(5)) thin films deposited using radio frequency sputtering under various conditions were studied using X-ray and ultraviolet photoelectron spectroscopy. The energy...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6017094/ https://www.ncbi.nlm.nih.gov/pubmed/29463008 http://dx.doi.org/10.3390/molecules23020449 |
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author | Lim, Chang Jin Park, Min Gyu Kim, Min Su Han, Jeong Hwa Cho, Soohaeng Cho, Mann-Ho Yi, Yeonjin Lee, Hyunbok Cho, Sang Wan |
author_facet | Lim, Chang Jin Park, Min Gyu Kim, Min Su Han, Jeong Hwa Cho, Soohaeng Cho, Mann-Ho Yi, Yeonjin Lee, Hyunbok Cho, Sang Wan |
author_sort | Lim, Chang Jin |
collection | PubMed |
description | The interfacial electronic structures of a bilayer of fullerene (C(60)) and zinc phthalocyanine (ZnPc) grown on vanadium pentoxide (V(2)O(5)) thin films deposited using radio frequency sputtering under various conditions were studied using X-ray and ultraviolet photoelectron spectroscopy. The energy difference between the highest occupied molecular orbital (HOMO) level of the ZnPc layer and the lowest unoccupied molecular orbital (LUMO) level of the C(60) layer was determined and compared with that grown on an indium tin oxide (ITO) substrate. The energy difference of a heterojunction on all V(2)O(5) was found to be 1.3~1.4 eV, while that on ITO was 1.1 eV. This difference could be due to the higher binding energy of the HOMO of ZnPc on V(2)O(5) than that on ITO regardless of work functions of the substrates. We also determined the complete energy level diagrams of C(60)/ZnPc on V(2)O(5) and ITO. |
format | Online Article Text |
id | pubmed-6017094 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-60170942018-11-13 Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications Lim, Chang Jin Park, Min Gyu Kim, Min Su Han, Jeong Hwa Cho, Soohaeng Cho, Mann-Ho Yi, Yeonjin Lee, Hyunbok Cho, Sang Wan Molecules Article The interfacial electronic structures of a bilayer of fullerene (C(60)) and zinc phthalocyanine (ZnPc) grown on vanadium pentoxide (V(2)O(5)) thin films deposited using radio frequency sputtering under various conditions were studied using X-ray and ultraviolet photoelectron spectroscopy. The energy difference between the highest occupied molecular orbital (HOMO) level of the ZnPc layer and the lowest unoccupied molecular orbital (LUMO) level of the C(60) layer was determined and compared with that grown on an indium tin oxide (ITO) substrate. The energy difference of a heterojunction on all V(2)O(5) was found to be 1.3~1.4 eV, while that on ITO was 1.1 eV. This difference could be due to the higher binding energy of the HOMO of ZnPc on V(2)O(5) than that on ITO regardless of work functions of the substrates. We also determined the complete energy level diagrams of C(60)/ZnPc on V(2)O(5) and ITO. MDPI 2018-02-18 /pmc/articles/PMC6017094/ /pubmed/29463008 http://dx.doi.org/10.3390/molecules23020449 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lim, Chang Jin Park, Min Gyu Kim, Min Su Han, Jeong Hwa Cho, Soohaeng Cho, Mann-Ho Yi, Yeonjin Lee, Hyunbok Cho, Sang Wan Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications |
title | Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications |
title_full | Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications |
title_fullStr | Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications |
title_full_unstemmed | Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications |
title_short | Electronic Structure of C(60)/Zinc Phthalocyanine/V(2)O(5) Interfaces Studied Using Photoemission Spectroscopy for Organic Photovoltaic Applications |
title_sort | electronic structure of c(60)/zinc phthalocyanine/v(2)o(5) interfaces studied using photoemission spectroscopy for organic photovoltaic applications |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6017094/ https://www.ncbi.nlm.nih.gov/pubmed/29463008 http://dx.doi.org/10.3390/molecules23020449 |
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