Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Kim, Honggi | - |
dc.contributor.author | Lim, Bogyu | - |
dc.contributor.author | Heo, Hyojung | - |
dc.contributor.author | Nam, Geonik | - |
dc.contributor.author | Lee, Hyungjin | - |
dc.contributor.author | Lee, Ji Young | - |
dc.contributor.author | Lee, Jaechol | - |
dc.contributor.author | Lee, Youngu | - |
dc.date.available | 2017-08-10T08:12:32Z | - |
dc.date.created | 2017-08-09 | - |
dc.date.issued | 2017-05-23 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/4171 | - |
dc.description.abstract | We synthesized and characterized two kinds of regioregular polymers that were based on thieno[3,4-b]thiophene as an electron-accepting unit and benzo[1,2-b:4,5-b′]dithiophene as the electron-donating unit with different side chain, alkylthio and alkyl thiophenes, named rr-PTBS and rr-PTB7-Th, respectively. Because of the partial introduction of the alkylthio thiophene side chain, rr-PTBS showed red-shifted absorption and a deeper HOMO level compared to those of rr-PTB7-Th. In addition, both rr-PTBS:PC71BM and rr-PTB7-Th:PC71BM blended films showed face-on orientations stronger than those of regiorandom PTB7-Th. However, the rr-PTB7-Th:PC71BM blended film showed a peak in the out-of-plane direction much weaker than those of rr-PTBS:PC71BM and PTB7-Th:PC71BM blended films. Moreover, the rr-PTBS:PC71BM blended film exhibited charge carrier mobility (μe/μh ∼ 1.01) much more balanced than that of the rr-PTB7-Th:PC71BM blended film (μe/μh ∼ 1.23). The bulk-heterojunction organic photovoltaic (OPV) device based on rr-PTBS and the 1,8-diiodooctane additive showed a high power conversion efficiency (PCE) of 8.68%, while the OPV device based on rr-PTB7-Th and the 1,8-diiodooctane additive showed a PCE of 7.04%. Finally, an OPV device using rr-PTBS, the diphenyl ether additive, and Micro Lens Film exhibited a short-circuit current (Jsc) of 19.72 mA/cm2, an open-circuit voltage (Voc) of 0.82 V, and a fill factor (FF) of 63.82%, thus resulting in a PCE of 10.31%. © 2017 American Chemical Society. | - |
dc.publisher | American Chemical Society | - |
dc.title | High-Efficiency Organic Photovoltaics with Two-Dimensional Conjugated Benzodithiophene-Based Regioregular Polymers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.chemmater.7b00595 | - |
dc.identifier.scopusid | 2-s2.0-85019693611 | - |
dc.identifier.bibliographicCitation | Chemistry of Materials, v.29, no.10, pp.4301 - 4310 | - |
dc.subject.keywordPlus | Bulk Heterojunction | - |
dc.subject.keywordPlus | Conjugated Polymers | - |
dc.subject.keywordPlus | Devices | - |
dc.subject.keywordPlus | Donor Acceptor Polymers | - |
dc.subject.keywordPlus | Efficiency | - |
dc.subject.keywordPlus | Electron Accepting Units | - |
dc.subject.keywordPlus | Electron Donating | - |
dc.subject.keywordPlus | Heterojunction Solar Cells | - |
dc.subject.keywordPlus | Heterojunctions | - |
dc.subject.keywordPlus | High Mobility | - |
dc.subject.keywordPlus | High Power Conversion | - |
dc.subject.keywordPlus | Microlenses | - |
dc.subject.keywordPlus | Open Circuit Voltage | - |
dc.subject.keywordPlus | Organic Photovoltaic (OPV) Devices | - |
dc.subject.keywordPlus | Organic Photovoltaics (OPV) | - |
dc.subject.keywordPlus | Organic Polymers | - |
dc.subject.keywordPlus | Orientationchains | - |
dc.subject.keywordPlus | Out of Plane Direction | - |
dc.subject.keywordPlus | Performance | - |
dc.subject.keywordPlus | Polymers | - |
dc.subject.keywordPlus | Power Conversion Efficiency | - |
dc.subject.keywordPlus | Semiconducting Polymers | - |
dc.subject.keywordPlus | Small Molecules | - |
dc.subject.keywordPlus | Thieno[3,4 B]Thiophene | - |
dc.subject.keywordPlus | Thiophene | - |
dc.citation.endPage | 4310 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 4301 | - |
dc.citation.title | Chemistry of Materials | - |
dc.citation.volume | 29 | - |
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