Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 장재영 | - |
dc.date.accessioned | 2022-10-27T02:18:27Z | - |
dc.date.available | 2022-10-27T02:18:27Z | - |
dc.date.issued | 2021-02 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v. 13, no. 5, page. 6208-6218 | en_US |
dc.identifier.issn | 1944-8244; 1944-8252 | en_US |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsami.0c19352 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175868 | - |
dc.description.abstract | Metal oxide semiconductor/chalcogenide quantum dot (QD) heterostructured photoanodes show photocurrent densities ˃30 mA/cm(2) with ZnO, approaching the theoretical limits in photovoltaic (PV) cells. However, comparative performance has not been achieved with TiO2. Here, we applied a TiO2(B) surface passivation layer (SPL) on TiO2/QD (PbS and CdS) and achieved a photocurrent density of 34.59 mA/cm(2) under AM 1.5G illumination for PV cells, the highest recorded to date. The SPL improves electron conductivity by increasing the density of surface states, facilitating multiple trapping/detrapping transport, and increasing the coordination number of TiO2 nanoparticles. This, along with impeded electron recombination, led to enhanced collection efficiency, which is a major factor for performance. Furthermore, SPL-treated TiO2/QD photoanodes were successfully exploited in photo-electrochemical water splitting cells, showing an excellent photocurrent density of 14.43 mA/cm(2) at 0.82 V versus the Reversible Hydrogen Electrode (RHE). These results suggest a new promising strategy for the development of high-performance photoelectrochemical devices. | en_US |
dc.description.sponsorship | This work was supported by the Korea Center for Artificial Photosynthesis (KCAP) of Sogang University, funded by the Ministry of Science, ICT, and Future Planning (MSIP) through a National Research Foundation of Korea (Grant no. 2009-0093883). This work also was supported by a grant from the Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT (NRF-2019R1A2C1003429) and by the Ministry of Education (NRF-2018R1A6A1A03024231). Also, this work was supported by the Ministerio de Ciencia, Innovacio'n y Universidades of Spain through the project ENE2017-85087-C3-1-R. Therefore, the authors acknowledge and thank the Korean and Spanish governments for technical and financial support. S. D. G. | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | TiO2/QD; photoanode; photoelectrochemical cells; surface passivation layer; surface state; charge collection; photocurrent density | en_US |
dc.title | Interfacial Engineering at Quantum Dot-Sensitized TiO2 Photoelectrodes for Ultrahigh Photocurrent Generation | en_US |
dc.type | Article | en_US |
dc.relation.no | 5 | - |
dc.relation.volume | 13 | - |
dc.identifier.doi | 10.1021/acsami.0c19352 | en_US |
dc.relation.page | 6208-6218 | - |
dc.relation.journal | ACS APPLIED MATERIALS & INTERFACES | - |
dc.contributor.googleauthor | Kim, Tea-Yon | - |
dc.contributor.googleauthor | Kim, Byung Su | - |
dc.contributor.googleauthor | Oh, Jong Gyu | - |
dc.contributor.googleauthor | Park, Seul Chan | - |
dc.contributor.googleauthor | Jang, Jaeyoung | - |
dc.contributor.googleauthor | Hamann, Thomas W. | - |
dc.contributor.googleauthor | Kang, Young Soo | - |
dc.contributor.googleauthor | Bang, Jin Ho | - |
dc.contributor.googleauthor | Gimenez, Sixto | - |
dc.contributor.googleauthor | Kang, Yong Soo | - |
dc.relation.code | 2021009211 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | jyjang15 | - |
dc.identifier.orcid | https://orcid.org/0000-0002-5548-8563 | - |
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