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DC Field | Value | Language |
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dc.citation.endPage | 362 | - |
dc.citation.startPage | 355 | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 39 | - |
dc.contributor.author | Azmi, Randi | - |
dc.contributor.author | So Youn Nam | - |
dc.contributor.author | Sinaga, Septy | - |
dc.contributor.author | Oh, Seung-Hwan | - |
dc.contributor.author | Ahn, Tae Kyu | - |
dc.contributor.author | Yoon, Sung Cheol | - |
dc.contributor.author | Jung, In Hwan | - |
dc.contributor.author | Jang, Sung-Yeon | - |
dc.date.accessioned | 2023-12-21T21:43:52Z | - |
dc.date.available | 2023-12-21T21:43:52Z | - |
dc.date.created | 2019-05-16 | - |
dc.date.issued | 2017-09 | - |
dc.description.abstract | High performance colloidal quantum dot (CQD) solar cells were developed by modifying ZnO electron accepting layers (EALs) using self-assembled monolayers (SAMs) of highly polar molecules. A high molecular dipole moment of -10.07D was achieved by conjugating a strong electron donor, julolidine, to an electron acceptor, a cyanoacetic acid unit, through a thiophene moiety. The energetic properties of ZnO EALs were manipulated with respect to the dipole moment of the modifying molecules. The built-in potential (V-bi) and internal electric field (E-int) of CQD solar cells could thereby be tuned. The power conversion efficiency (PCE) of the SAM modified devices was improved from 3.7% to 12.9% relative to the unmodified devices as a function of molecular dipole moments (from -5.13D to -10.07D). All figures-of-merit of solar cells were improved simultaneously by SAM modification due to enhanced V-bi, E-int, and charge collection efficiency. The PCE of the highly polar molecule modified devices reached 10.89% with a V-OC of 0.689 V, whereas that of the unmodified devices was 9.65% with a V-OC of 0.659 V. Notably, the remarkably low energy loss of 0.433 eV is achieved in the SAM modified devices. | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.39, pp.355 - 362 | - |
dc.identifier.doi | 10.1016/j.nanoen.2017.07.015 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.scopusid | 2-s2.0-85023610632 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/26774 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S2211285517304287?via%3Dihub | - |
dc.identifier.wosid | 000408878200037 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Improved performance of colloidal quantum dot solar cells using high-electric-dipole self-assembled layers | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Quantum dot solar cell | - |
dc.subject.keywordAuthor | Electron accepting layer | - |
dc.subject.keywordAuthor | Internal electric field | - |
dc.subject.keywordAuthor | Self-assembled monolayer | - |
dc.subject.keywordAuthor | Energy loss | - |
dc.subject.keywordPlus | PHOTOVOLTAICS | - |
dc.subject.keywordPlus | POLYMER | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | PBS | - |
dc.subject.keywordPlus | RECOMBINATION | - |
dc.subject.keywordPlus | PHOTOCURRENT | - |
dc.subject.keywordPlus | MONOLAYER | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | ZNO | - |
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