High-Efficiency Nonfullerene Polymer Solar Cells with Band gap and Absorption Tunable Donor/Acceptor Random Copolymers
DC Field | Value | Language |
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dc.contributor.author | Kim, Da Hun | - |
dc.contributor.author | Bui, Thi Thu Trang | - |
dc.contributor.author | Rasool, Shafket | - |
dc.contributor.author | Song, Chang Eun | - |
dc.contributor.author | Lee, Hang Ken | - |
dc.contributor.author | Lee, Sang Kyu | - |
dc.contributor.author | Lee, Jong-Cheol | - |
dc.contributor.author | So, Won-Wook | - |
dc.contributor.author | Shin, Won Suk | - |
dc.date.accessioned | 2021-09-01T21:28:23Z | - |
dc.date.available | 2021-09-01T21:28:23Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-01-16 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/68276 | - |
dc.description.abstract | Eneirgy level alignment between a donor and an acceptor has a critical role in determining the open-circuit voltage (V-OC) in polymer solar cells (PSCs). Also, broad absorption of the photoactive layer is required to generate a high photocurrent. Herein, non-fullerene PSCs with D/A random copolymers and 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylpheny1)-dithieno [2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophene (ITIC) has been demonstrated. The D/A random copolymers are composed of a 2-ethylhexylthienyl-substituted benzo[1,2-b:4,5-b']dithiophene (BDT) donor unit (D) and a fluorinated thieno[3,4-b]thiophene (TT-F) acceptor unit (A). By controlling the D/A unit ratio in the polymer backbone, it is possible to modulate both the energy levels and absorption spectra of random copolymers. As the ratio of the donor unit in the polymer back bone increases, the highest occupied molecular orbital energy level is located deeper, leading to higher V-OC. Also, the absorption spectra of random copolymers become blue-shifted with an increase of the donor unit ratio; it compensates the weak absorption region of ITIC. This complementary absorption enhances the photocurrent, leading to higher power conversion efficiency (PCE). Because of the optimization of the D/A ratio of random copolymers, a notable PCE of 10.27% can be achieved in PSCs with DSA and ITIC. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | POWER CONVERSION EFFICIENCY | - |
dc.subject | SUBSTITUTED 2D-CONJUGATED POLYMER | - |
dc.subject | ENERGY-LEVEL MODULATION | - |
dc.subject | PHOTOVOLTAIC PERFORMANCE | - |
dc.subject | ELECTRON-ACCEPTORS | - |
dc.subject | SMALL-MOLECULE | - |
dc.subject | DONOR | - |
dc.subject | BENZODITHIOPHENE | - |
dc.subject | MORPHOLOGY | - |
dc.subject | TOLERANCE | - |
dc.title | High-Efficiency Nonfullerene Polymer Solar Cells with Band gap and Absorption Tunable Donor/Acceptor Random Copolymers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shin, Won Suk | - |
dc.identifier.doi | 10.1021/acsami.8b16202 | - |
dc.identifier.scopusid | 2-s2.0-85059676788 | - |
dc.identifier.wosid | 000456351100049 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.11, no.2, pp.2189 - 2196 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 11 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 2189 | - |
dc.citation.endPage | 2196 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | SUBSTITUTED 2D-CONJUGATED POLYMER | - |
dc.subject.keywordPlus | ENERGY-LEVEL MODULATION | - |
dc.subject.keywordPlus | PHOTOVOLTAIC PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTORS | - |
dc.subject.keywordPlus | SMALL-MOLECULE | - |
dc.subject.keywordPlus | DONOR | - |
dc.subject.keywordPlus | BENZODITHIOPHENE | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | TOLERANCE | - |
dc.subject.keywordAuthor | non-fullerene organic solar cell | - |
dc.subject.keywordAuthor | complementary light absorption | - |
dc.subject.keywordAuthor | morphology | - |
dc.subject.keywordAuthor | energy level modulation | - |
dc.subject.keywordAuthor | D/A random copolymer | - |
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