DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shin, Seung Wook | ko |
dc.contributor.author | Lee, Jeong Yong | ko |
dc.contributor.author | Ahn, Kwang-Soon | ko |
dc.contributor.author | Kang, Soon Hyung | ko |
dc.contributor.author | Kim, Jin Hyeok | ko |
dc.date.accessioned | 2016-04-15T03:10:23Z | - |
dc.date.available | 2016-04-15T03:10:23Z | - |
dc.date.created | 2015-12-14 | - |
dc.date.created | 2015-12-14 | - |
dc.date.created | 2015-12-14 | - |
dc.date.issued | 2015-06 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY C, v.119, no.24, pp.13375 - 13383 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/10203/204017 | - |
dc.description.abstract | Herein, we report the preparation and characterizations of the sulfur (S)-doped TiO2 nanotube (TONT) arrays prepared by a sulfurization process of TONT arrays via electrochemical anodization on a Ti substrate with pure TONT arrays. The S-doped TONT arrays were prepared with the annealing temperature from 450 to 550 degrees C under H2S gas for 10 min, and these reaction conditions corresponded to no modification of the morphological features relative to that of the TONT arrays. Furthermore, the 500 degrees C annealed S-doped TONT arrays showed enhanced visible light absorption and high electric conductivity, thus resulting in the most improved photo current density (2.92 mA cm(-2) at 1.0 V vs sat. Ag/AgCl) in the 0.1 M KOH solution as compared with that (0.965 mA cm(-2) at 1.0 V vs sat. Ag/AgCl) of TONT arrays. In addition, the incident photon-to-electron conversion efficiency (IPCE) of S-doped TONT arrays exhibited approximately 43% in the UV region, whereas TONT arrays had 32% IPCE in the UV region. In addition, the small photoactivity in the visible light region for the S-doped TONT arrays was observed up to a 600 nm wavelength, where IPCE value of 2.4% at 500 nm was achieved in the S-doped TONT arrays, in contrast to the negligible IPCE values for the TONT arrays. However, the relatively reduced photocurrent density (2.04 mA cm(-2) at 1.0 V vs sat. Ag/AgCl) was achieved at further sulfurization temperature at 550 degrees C for the S-doped TONT arrays; this value is attributed to the rough tube shape and atomic level defects in the edge region for the excessively S-doped TONT array, which indicated a role as the light scattering centers and the electron-hole trap sites. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | SENSITIZED SOLAR-CELLS | - |
dc.subject | P-N-JUNCTION | - |
dc.subject | PHOTOELECTROCATALYTIC PERFORMANCE | - |
dc.subject | PHOTOCATALYTIC ACTIVITIES | - |
dc.subject | ANATASE TIO2 | - |
dc.subject | FILMS | - |
dc.subject | SEMICONDUCTOR | - |
dc.subject | ANODIZATION | - |
dc.subject | ELECTRODE | - |
dc.subject | HYDROGEN | - |
dc.title | Visible Light Absorbing TiO2 Nanotube Arrays by Sulfur Treatment for Photoelectrochemical Water Splitting | - |
dc.type | Article | - |
dc.identifier.wosid | 000356754900001 | - |
dc.identifier.scopusid | 2-s2.0-84934941143 | - |
dc.type.rims | ART | - |
dc.citation.volume | 119 | - |
dc.citation.issue | 24 | - |
dc.citation.beginningpage | 13375 | - |
dc.citation.endingpage | 13383 | - |
dc.citation.publicationname | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.identifier.doi | 10.1021/acs.jpcc.5b01104 | - |
dc.contributor.localauthor | Lee, Jeong Yong | - |
dc.contributor.nonIdAuthor | Shin, Seung Wook | - |
dc.contributor.nonIdAuthor | Ahn, Kwang-Soon | - |
dc.contributor.nonIdAuthor | Kang, Soon Hyung | - |
dc.contributor.nonIdAuthor | Kim, Jin Hyeok | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SENSITIZED SOLAR-CELLS | - |
dc.subject.keywordPlus | P-N-JUNCTION | - |
dc.subject.keywordPlus | PHOTOELECTROCATALYTIC PERFORMANCE | - |
dc.subject.keywordPlus | PHOTOCATALYTIC ACTIVITIES | - |
dc.subject.keywordPlus | ANATASE TIO2 | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | SEMICONDUCTOR | - |
dc.subject.keywordPlus | ANODIZATION | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.subject.keywordPlus | HYDROGEN | - |
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