Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://repositorio.unifesp.br/handle/11600/57953 http://dx.doi.org/10.1016/j.apsusc.2015.12.114 |
Resumo: | Since Gratzel and O'Regan started in 1991, dye-sensitized solar cells (DSSC) have been extensively studied around the world. In addition to increasing efficiency, their characteristics such as low cost materials and inexpensive manufacturing processes are attractive for organic solar cells. Several parts of DSSC devices are being researched such as semiconductor engineering, low cost counter electrodes, electrolytes, and dyes. In this work, platinum (Pt) thin films were deposited by sputtering technique to produce counter electrodes for DSSC. The films were characterized by profilometry, elipsometry, four-point probe sheet resistance, spectrophotometry, and electrochemical impedance spectroscopy. The electrode response was also compared to that built from a commercial platinum solution. The results allow us to determine the minimum Pt film thickness necessary to achieve a relevant reduction of the sheet resistance and charge transfer resistance, which preserve a significant electrode transparency. The 22 nm and 24.8 nm thick films combined low charge transfer resistance and good transparency. The 122 nm Pt film presented the lowest charge transfer resistance. (C) 2015 Elsevier B.V. All rights reserved. |
id |
UFSP_19c301640fd517c2e1118e88a8f00253 |
---|---|
oai_identifier_str |
oai:repositorio.unifesp.br:11600/57953 |
network_acronym_str |
UFSP |
network_name_str |
Repositório Institucional da UNIFESP |
repository_id_str |
3465 |
spelling |
Moraes, R. S.Saito, E. [UNIFESP]Leite, D. M. G.Massi, M. [UNIFESP]da Silva Sobrinho, A. S.2020-08-21T17:00:21Z2020-08-21T17:00:21Z2016Applied Surface Science. Amsterdam, v. 364, p. 229-234, 2016.0169-4332https://repositorio.unifesp.br/handle/11600/57953http://dx.doi.org/10.1016/j.apsusc.2015.12.114WOS000369957800030.pdf10.1016/j.apsusc.2015.12.114WOS:000369957800030Since Gratzel and O'Regan started in 1991, dye-sensitized solar cells (DSSC) have been extensively studied around the world. In addition to increasing efficiency, their characteristics such as low cost materials and inexpensive manufacturing processes are attractive for organic solar cells. Several parts of DSSC devices are being researched such as semiconductor engineering, low cost counter electrodes, electrolytes, and dyes. In this work, platinum (Pt) thin films were deposited by sputtering technique to produce counter electrodes for DSSC. The films were characterized by profilometry, elipsometry, four-point probe sheet resistance, spectrophotometry, and electrochemical impedance spectroscopy. The electrode response was also compared to that built from a commercial platinum solution. The results allow us to determine the minimum Pt film thickness necessary to achieve a relevant reduction of the sheet resistance and charge transfer resistance, which preserve a significant electrode transparency. The 22 nm and 24.8 nm thick films combined low charge transfer resistance and good transparency. The 122 nm Pt film presented the lowest charge transfer resistance. (C) 2015 Elsevier B.V. All rights reserved.CAPES/PNPDCAPES/PVNSCNPqPhotonics Division of Institute of Advanced Studies (EFO-IEAv)Technol Inst Aeronaut ITA, Dept Phys, Sao Jose Dos Campos, SP, BrazilUniv Fed Sao Paulo, ICT, Sao Jose Dos Campos, SP, BrazilUniv Fed Sao Paulo, ICT, Sao Jose Dos Campos, SP, BrazilCNPq: 555.686/2010-8Web of Science229-234engElsevier Science BvApplied Surface ScienceEnergy conversionSolar energyDSSC counter electrodePlatinum catalytic thin filmOptical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cellsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAmsterdam364info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000369957800030.pdfapplication/pdf1093900${dspace.ui.url}/bitstream/11600/57953/1/WOS000369957800030.pdf579cd48ad242f0c25e157e1faaa9474dMD51open accessTEXTWOS000369957800030.pdf.txtWOS000369957800030.pdf.txtExtracted texttext/plain30052${dspace.ui.url}/bitstream/11600/57953/8/WOS000369957800030.pdf.txtd7f0fc1229d2fbb68b32512d541ae23cMD58open accessTHUMBNAILWOS000369957800030.pdf.jpgWOS000369957800030.pdf.jpgIM Thumbnailimage/jpeg7086${dspace.ui.url}/bitstream/11600/57953/10/WOS000369957800030.pdf.jpg50912cde5943d600b4afc0142ae0ca3fMD510open access11600/579532023-06-05 19:10:15.905open accessoai:repositorio.unifesp.br:11600/57953Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:10:15Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
title |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
spellingShingle |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells Moraes, R. S. Energy conversion Solar energy DSSC counter electrode Platinum catalytic thin film |
title_short |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
title_full |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
title_fullStr |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
title_full_unstemmed |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
title_sort |
Optical, electrical and electrochemical evaluation of sputtered platinum counter electrodes for dye sensitized solar cells |
author |
Moraes, R. S. |
author_facet |
Moraes, R. S. Saito, E. [UNIFESP] Leite, D. M. G. Massi, M. [UNIFESP] da Silva Sobrinho, A. S. |
author_role |
author |
author2 |
Saito, E. [UNIFESP] Leite, D. M. G. Massi, M. [UNIFESP] da Silva Sobrinho, A. S. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Moraes, R. S. Saito, E. [UNIFESP] Leite, D. M. G. Massi, M. [UNIFESP] da Silva Sobrinho, A. S. |
dc.subject.eng.fl_str_mv |
Energy conversion Solar energy DSSC counter electrode Platinum catalytic thin film |
topic |
Energy conversion Solar energy DSSC counter electrode Platinum catalytic thin film |
description |
Since Gratzel and O'Regan started in 1991, dye-sensitized solar cells (DSSC) have been extensively studied around the world. In addition to increasing efficiency, their characteristics such as low cost materials and inexpensive manufacturing processes are attractive for organic solar cells. Several parts of DSSC devices are being researched such as semiconductor engineering, low cost counter electrodes, electrolytes, and dyes. In this work, platinum (Pt) thin films were deposited by sputtering technique to produce counter electrodes for DSSC. The films were characterized by profilometry, elipsometry, four-point probe sheet resistance, spectrophotometry, and electrochemical impedance spectroscopy. The electrode response was also compared to that built from a commercial platinum solution. The results allow us to determine the minimum Pt film thickness necessary to achieve a relevant reduction of the sheet resistance and charge transfer resistance, which preserve a significant electrode transparency. The 22 nm and 24.8 nm thick films combined low charge transfer resistance and good transparency. The 122 nm Pt film presented the lowest charge transfer resistance. (C) 2015 Elsevier B.V. All rights reserved. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2020-08-21T17:00:21Z |
dc.date.available.fl_str_mv |
2020-08-21T17:00:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Applied Surface Science. Amsterdam, v. 364, p. 229-234, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.unifesp.br/handle/11600/57953 http://dx.doi.org/10.1016/j.apsusc.2015.12.114 |
dc.identifier.issn.none.fl_str_mv |
0169-4332 |
dc.identifier.file.none.fl_str_mv |
WOS000369957800030.pdf |
dc.identifier.doi.none.fl_str_mv |
10.1016/j.apsusc.2015.12.114 |
dc.identifier.wos.none.fl_str_mv |
WOS:000369957800030 |
identifier_str_mv |
Applied Surface Science. Amsterdam, v. 364, p. 229-234, 2016. 0169-4332 WOS000369957800030.pdf 10.1016/j.apsusc.2015.12.114 WOS:000369957800030 |
url |
https://repositorio.unifesp.br/handle/11600/57953 http://dx.doi.org/10.1016/j.apsusc.2015.12.114 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Applied Surface Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
229-234 |
dc.coverage.none.fl_str_mv |
Amsterdam |
dc.publisher.none.fl_str_mv |
Elsevier Science Bv |
publisher.none.fl_str_mv |
Elsevier Science Bv |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNIFESP instname:Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
instname_str |
Universidade Federal de São Paulo (UNIFESP) |
instacron_str |
UNIFESP |
institution |
UNIFESP |
reponame_str |
Repositório Institucional da UNIFESP |
collection |
Repositório Institucional da UNIFESP |
bitstream.url.fl_str_mv |
${dspace.ui.url}/bitstream/11600/57953/1/WOS000369957800030.pdf ${dspace.ui.url}/bitstream/11600/57953/8/WOS000369957800030.pdf.txt ${dspace.ui.url}/bitstream/11600/57953/10/WOS000369957800030.pdf.jpg |
bitstream.checksum.fl_str_mv |
579cd48ad242f0c25e157e1faaa9474d d7f0fc1229d2fbb68b32512d541ae23c 50912cde5943d600b4afc0142ae0ca3f |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP) |
repository.mail.fl_str_mv |
|
_version_ |
1783460344276975616 |