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Air-stable inverted structure of hybrid solar cells using a cesium-doped ZnO electron transport layer prepared by a sol-gel process
DC Field | Value | Language |
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dc.contributor.author | Kwon, Seungchul | - |
dc.contributor.author | Lim, Kyung-Geun | - |
dc.contributor.author | Shim, Myungsun | - |
dc.contributor.author | Moon, Hong Chul | - |
dc.contributor.author | Park, Jicheol | - |
dc.contributor.author | Jeon, Gumhye | - |
dc.contributor.author | Shin, Jihyun | - |
dc.contributor.author | Cho, Kilwon | - |
dc.contributor.author | Lee, Tae-Woo | - |
dc.contributor.author | Kim, Jin Kon | - |
dc.date.accessioned | 2023-03-27T06:02:16Z | - |
dc.date.available | 2023-03-27T06:02:16Z | - |
dc.date.created | 2020-04-08 | - |
dc.date.issued | 2013-10 | - |
dc.identifier.citation | Journal of Materials Chemistry A, Vol.1 No.38, pp.11802-11808 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://hdl.handle.net/10371/189846 | - |
dc.description.abstract | We have developed an air-stable inverted structure of poly(3-hexylthiophene) (P3HT) : cadmium selenide (CdSe) hybrid solar cells using a cesium-doped ZnO (ZnO:Cs) electron transport layer. The ZnO:Cs layer was simply prepared at low temperature by the sol-gel process using a ZnO solution containing cesium carbonate (Cs2CO3). With increasing Cs-doping concentration, the conduction band edge of ZnO is decreased, as confirmed by scanning Kelvin probe microscopy. The energy level of ZnO: Cs is effective for electron transport from CdSe. Consequently, the power conversion efficiency (PCE) of the inverted P3HT : CdSe hybrid solar cells using the ZnO: Cs electron transport layer is 1.14%, which is significantly improved over that (0.43%) of another device without Cs. X-ray photoelectron spectroscopy analysis revealed that the amount of CdSe on the substrate (or the bottom surface) is larger compared with the air (or top) surface regardless of the P3HT : CdSe weight ratio. The vertically inhomogeneous distribution of CdSe in the hybrid solar cells gives better charge transport from CdSe to ZnO:Cs in the inverted structure of the device compared with that in the normal structure. As a result, the inverted hybrid solar cell consisting of 1 : 4 (wt/wt) P3HT : CdSe shows the best efficiency, while the best efficiency of a normal hybrid solar cell is achieved at 1 : 9 (wt/wt) P3HT : CdSe. | - |
dc.language | 영어 | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Air-stable inverted structure of hybrid solar cells using a cesium-doped ZnO electron transport layer prepared by a sol-gel process | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/c3ta12425h | - |
dc.citation.journaltitle | Journal of Materials Chemistry A | - |
dc.identifier.wosid | 000324409700039 | - |
dc.identifier.scopusid | 2-s2.0-84884127332 | - |
dc.citation.endpage | 11808 | - |
dc.citation.number | 38 | - |
dc.citation.startpage | 11802 | - |
dc.citation.volume | 1 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Lee, Tae-Woo | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | SHORT-CIRCUIT CURRENT | - |
dc.subject.keywordPlus | INDIUM-TIN-OXIDE | - |
dc.subject.keywordPlus | PHOTOVOLTAIC DEVICES | - |
dc.subject.keywordPlus | CDSE NANORODS | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | POLYMER | - |
dc.subject.keywordPlus | HETEROJUNCTION | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
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