Expanded light-absorption and efficient charge-separation: bilayered thin film nano-hetero-structures, CuO/Cu–ZnO, make efficient photoanode in photoelectrochemical water splitting
High efficiency photoelectrochemical water splitting is achieved, using uniquely evolved bi-layered nano-hetero-structured (BNHS) thin films, CuO/Cu–ZnO, grown over ITO (In:SnO 2 ) glass substrate by spray-pyrolysis and sol–gel spin-coating. Films were characterized by X-ray diffractometry, scanning...
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| Veröffentlicht in: | Journal of applied electrochemistry 2020-08, Vol.50 (8), p.887-906 |
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| container_title | Journal of applied electrochemistry |
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| creator | Kaur, Gurpreet Divya Khan, Saif A. Satsangi, Vibha R. Dass, Sahab Shrivastav, Rohit |
| description | High efficiency photoelectrochemical water splitting is achieved, using uniquely evolved bi-layered nano-hetero-structured (BNHS) thin films, CuO/Cu–ZnO, grown over ITO (In:SnO
2
) glass substrate by spray-pyrolysis and sol–gel spin-coating. Films were characterized by X-ray diffractometry, scanning electron microscopy, atomic force microscopy, UV–visible spectrometry, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. Significant gain in photocurrent and applied bias photon-to-current efficiency, with 3% Cu incorporated BNHS films yielding maximum photocurrent ~ 2.98 mA cm
−2
, is attributable to favourable changes in material microstructure and electrical properties. CuO nanparticles existing as dispersed phase in ZnO overlayer and tendering a possible mechanism for the transfer of photogenerated holes from the underneath CuO layer to electrolyte is a highlighting proposition of this report.
Graphic abstract |
| doi_str_mv | 10.1007/s10800-020-01443-y |
| format | Article |
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2
) glass substrate by spray-pyrolysis and sol–gel spin-coating. Films were characterized by X-ray diffractometry, scanning electron microscopy, atomic force microscopy, UV–visible spectrometry, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. Significant gain in photocurrent and applied bias photon-to-current efficiency, with 3% Cu incorporated BNHS films yielding maximum photocurrent ~ 2.98 mA cm
−2
, is attributable to favourable changes in material microstructure and electrical properties. CuO nanparticles existing as dispersed phase in ZnO overlayer and tendering a possible mechanism for the transfer of photogenerated holes from the underneath CuO layer to electrolyte is a highlighting proposition of this report.
Graphic abstract</description><identifier>ISSN: 0021-891X</identifier><identifier>EISSN: 1572-8838</identifier><identifier>DOI: 10.1007/s10800-020-01443-y</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Atomic force microscopy ; Chemistry ; Chemistry and Materials Science ; Copper oxides ; Current efficiency ; Dispersion ; Electrical properties ; Electrochemistry ; Electromagnetic absorption ; Electron microscopy ; Glass substrates ; Industrial Chemistry/Chemical Engineering ; Microscopy ; Photoanodes ; Photoelectric effect ; Photoelectric emission ; Photoelectrons ; Physical Chemistry ; Pyrolysis ; Research Article ; Sol-gel processes ; Solar Cells ; Spin coating ; Tendering ; Thin films ; Tin dioxide ; Water splitting ; X-ray spectroscopy ; Zinc oxide</subject><ispartof>Journal of applied electrochemistry, 2020-08, Vol.50 (8), p.887-906</ispartof><rights>Springer Nature B.V. 2020</rights><rights>Springer Nature B.V. 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-1522bd9d115c4b171a99bd941d2512e9d362935f823822687fa25b19d9a14a463</citedby><cites>FETCH-LOGICAL-c356t-1522bd9d115c4b171a99bd941d2512e9d362935f823822687fa25b19d9a14a463</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10800-020-01443-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10800-020-01443-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Kaur, Gurpreet</creatorcontrib><creatorcontrib>Divya</creatorcontrib><creatorcontrib>Khan, Saif A.</creatorcontrib><creatorcontrib>Satsangi, Vibha R.</creatorcontrib><creatorcontrib>Dass, Sahab</creatorcontrib><creatorcontrib>Shrivastav, Rohit</creatorcontrib><title>Expanded light-absorption and efficient charge-separation: bilayered thin film nano-hetero-structures, CuO/Cu–ZnO, make efficient photoanode in photoelectrochemical water splitting</title><title>Journal of applied electrochemistry</title><addtitle>J Appl Electrochem</addtitle><description>High efficiency photoelectrochemical water splitting is achieved, using uniquely evolved bi-layered nano-hetero-structured (BNHS) thin films, CuO/Cu–ZnO, grown over ITO (In:SnO
2
) glass substrate by spray-pyrolysis and sol–gel spin-coating. Films were characterized by X-ray diffractometry, scanning electron microscopy, atomic force microscopy, UV–visible spectrometry, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. Significant gain in photocurrent and applied bias photon-to-current efficiency, with 3% Cu incorporated BNHS films yielding maximum photocurrent ~ 2.98 mA cm
−2
, is attributable to favourable changes in material microstructure and electrical properties. CuO nanparticles existing as dispersed phase in ZnO overlayer and tendering a possible mechanism for the transfer of photogenerated holes from the underneath CuO layer to electrolyte is a highlighting proposition of this report.
Graphic abstract</description><subject>Atomic force microscopy</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Copper oxides</subject><subject>Current efficiency</subject><subject>Dispersion</subject><subject>Electrical properties</subject><subject>Electrochemistry</subject><subject>Electromagnetic absorption</subject><subject>Electron microscopy</subject><subject>Glass substrates</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Microscopy</subject><subject>Photoanodes</subject><subject>Photoelectric effect</subject><subject>Photoelectric emission</subject><subject>Photoelectrons</subject><subject>Physical Chemistry</subject><subject>Pyrolysis</subject><subject>Research Article</subject><subject>Sol-gel processes</subject><subject>Solar Cells</subject><subject>Spin coating</subject><subject>Tendering</subject><subject>Thin films</subject><subject>Tin dioxide</subject><subject>Water splitting</subject><subject>X-ray spectroscopy</subject><subject>Zinc oxide</subject><issn>0021-891X</issn><issn>1572-8838</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kUFu1DAUhi0EEkPhAqwssa2pn51kHHZo1AJSpdmAVHVjOc7LxCVjB9tROzvuwF04ECfB00GCFQvLevb_fW_xE_Ia-FvgfH2RgCvOGRflQFVJdnhCVlCvBVNKqqdkxbkAplq4eU5epHTHOW9FU63Iz8uH2fgeezq53ZiZ6VKIc3bB0_JMcRicdegztaOJO2QJZxPN8f8d7dxkDhgLm0fn6eCmPfXGBzZixhhYynGxeYmYzulm2V5sll_ff9z67Tndm6_4j3seQw4F7JEWz-OEE9ocgx1x76yZ6L0pSprmyeXs_O4leTaYKeGrP_cZ-XJ1-XnzkV1vP3zavL9mVtZNZlAL0fVtD1DbqoM1mLYtcwW9qEFg28tGtLIelJBKiEatByPqDtq-NVCZqpFn5M3JO8fwbcGU9V1Yoi8rtagE1CCFOqbEKWVjSCnioOfo9iYeNHB97Eef-tGlH_3Yjz4USJ6gVMJ-h_Gv-j_Ub-MZmHg</recordid><startdate>20200801</startdate><enddate>20200801</enddate><creator>Kaur, Gurpreet</creator><creator>Divya</creator><creator>Khan, Saif A.</creator><creator>Satsangi, Vibha R.</creator><creator>Dass, Sahab</creator><creator>Shrivastav, Rohit</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20200801</creationdate><title>Expanded light-absorption and efficient charge-separation: bilayered thin film nano-hetero-structures, CuO/Cu–ZnO, make efficient photoanode in photoelectrochemical water splitting</title><author>Kaur, Gurpreet ; Divya ; Khan, Saif A. ; Satsangi, Vibha R. ; Dass, Sahab ; Shrivastav, Rohit</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-1522bd9d115c4b171a99bd941d2512e9d362935f823822687fa25b19d9a14a463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Atomic force microscopy</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Copper oxides</topic><topic>Current efficiency</topic><topic>Dispersion</topic><topic>Electrical properties</topic><topic>Electrochemistry</topic><topic>Electromagnetic absorption</topic><topic>Electron microscopy</topic><topic>Glass substrates</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Microscopy</topic><topic>Photoanodes</topic><topic>Photoelectric effect</topic><topic>Photoelectric emission</topic><topic>Photoelectrons</topic><topic>Physical Chemistry</topic><topic>Pyrolysis</topic><topic>Research Article</topic><topic>Sol-gel processes</topic><topic>Solar Cells</topic><topic>Spin coating</topic><topic>Tendering</topic><topic>Thin films</topic><topic>Tin dioxide</topic><topic>Water splitting</topic><topic>X-ray spectroscopy</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kaur, Gurpreet</creatorcontrib><creatorcontrib>Divya</creatorcontrib><creatorcontrib>Khan, Saif A.</creatorcontrib><creatorcontrib>Satsangi, Vibha R.</creatorcontrib><creatorcontrib>Dass, Sahab</creatorcontrib><creatorcontrib>Shrivastav, Rohit</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of applied electrochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kaur, Gurpreet</au><au>Divya</au><au>Khan, Saif A.</au><au>Satsangi, Vibha R.</au><au>Dass, Sahab</au><au>Shrivastav, Rohit</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Expanded light-absorption and efficient charge-separation: bilayered thin film nano-hetero-structures, CuO/Cu–ZnO, make efficient photoanode in photoelectrochemical water splitting</atitle><jtitle>Journal of applied electrochemistry</jtitle><stitle>J Appl Electrochem</stitle><date>2020-08-01</date><risdate>2020</risdate><volume>50</volume><issue>8</issue><spage>887</spage><epage>906</epage><pages>887-906</pages><issn>0021-891X</issn><eissn>1572-8838</eissn><abstract>High efficiency photoelectrochemical water splitting is achieved, using uniquely evolved bi-layered nano-hetero-structured (BNHS) thin films, CuO/Cu–ZnO, grown over ITO (In:SnO
2
) glass substrate by spray-pyrolysis and sol–gel spin-coating. Films were characterized by X-ray diffractometry, scanning electron microscopy, atomic force microscopy, UV–visible spectrometry, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. Significant gain in photocurrent and applied bias photon-to-current efficiency, with 3% Cu incorporated BNHS films yielding maximum photocurrent ~ 2.98 mA cm
−2
, is attributable to favourable changes in material microstructure and electrical properties. CuO nanparticles existing as dispersed phase in ZnO overlayer and tendering a possible mechanism for the transfer of photogenerated holes from the underneath CuO layer to electrolyte is a highlighting proposition of this report.
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| subjects | Atomic force microscopy Chemistry Chemistry and Materials Science Copper oxides Current efficiency Dispersion Electrical properties Electrochemistry Electromagnetic absorption Electron microscopy Glass substrates Industrial Chemistry/Chemical Engineering Microscopy Photoanodes Photoelectric effect Photoelectric emission Photoelectrons Physical Chemistry Pyrolysis Research Article Sol-gel processes Solar Cells Spin coating Tendering Thin films Tin dioxide Water splitting X-ray spectroscopy Zinc oxide |
| title | Expanded light-absorption and efficient charge-separation: bilayered thin film nano-hetero-structures, CuO/Cu–ZnO, make efficient photoanode in photoelectrochemical water splitting |
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