Two Regioisomeric pi-Conjugated Small Molecules: Synthesis, Photophysical, Packing, and Optoelectronic Properties
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Li, Yuxiang | - |
dc.contributor.author | Lee, Dae Hee | - |
dc.contributor.author | Lee, Joungphil | - |
dc.contributor.author | Thanh Luan Nguyen | - |
dc.contributor.author | Hwang, Sungu | - |
dc.contributor.author | Park, Moon Jeong | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.contributor.author | Woo, Han Young | - |
dc.date.accessioned | 2021-09-03T01:52:26Z | - |
dc.date.available | 2021-09-03T01:52:26Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-09-06 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/82264 | - |
dc.description.abstract | Two regioisomeric D-1-A-D-A-D-1 type pi-conjugated molecules (1,4-bis{5-[4-(5-fluoro-7-(5-hexylthiophen-2-yl) benzo[c][1,2,5] thiadiazole)] thiophen-2-yl}-2,5-bis(hexyldecyloxy) benzene (Prox-FBT) and 1,4-bis{5-[4-(6-fluoro-7-(5-hexylthiophen-2-yl) benzo[c][1,2,5] thiadiazole)] thiophen- 2-yl}-2,5-bis(hexyldecyloxy) benzene (Dis-FBT)) are synthesized, by controlling the fluorine topology to be proximal or distal relative to the central core. The different F geometries are confirmed by the H-1-H-1 nuclear Over-hauer effect spectroscopy (NOESY). Clearly different optical, electrochemical, and thermal transition behaviors are obtained, i.e., stronger absorption, deeper valance band (by approximate to 0.2 eV), and higher melting/recrystallization temperatures (by 7-20 degrees C) are observed for Dis-FBT. The different intermolecular packing and unit cell structures are also calculated for the two regioisomers, based on the powder X-ray diffraction and 2D grazing-incidence wide-angle X-ray diffraction measurements. A tighter pi-pi packing with a preferential monoclinic face-on orientation is extracted for Dis-FBT, compared to Prox-FBT with bimodal orientations. Different topological structures significantly affect the electrical and photovoltaic properties, where Prox-FBT shows higher parallel hole mobility (2.3 x 10(-3) cm(2) V-1 s(-1)), but Dis-FBT demonstrates higher power conversion efficiency (5.47%) with a larger open-circuit voltage of 0.95 V (vs 0.79 V for Prox-FBT). The findings suggest that small changes in the topological geometry can affect the electronic structure as well as self-assembly behaviors, which can possibly be utilized for fine-adjusting the electrical properties and further optimization of optoelectronic devices. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | POLYMER SOLAR-CELLS | - |
dc.subject | PHOTOVOLTAIC CELLS | - |
dc.subject | EFFICIENCY | - |
dc.subject | TRANSISTORS | - |
dc.subject | SEMICONDUCTORS | - |
dc.subject | ORGANIZATION | - |
dc.subject | DERIVATIVES | - |
dc.subject | DESIGN | - |
dc.subject | SERIES | - |
dc.title | Two Regioisomeric pi-Conjugated Small Molecules: Synthesis, Photophysical, Packing, and Optoelectronic Properties | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1002/adfm.201701942 | - |
dc.identifier.scopusid | 2-s2.0-85024114148 | - |
dc.identifier.wosid | 000409117500013 | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.27, no.33 | - |
dc.relation.isPartOf | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 27 | - |
dc.citation.number | 33 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | POLYMER SOLAR-CELLS | - |
dc.subject.keywordPlus | PHOTOVOLTAIC CELLS | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | TRANSISTORS | - |
dc.subject.keywordPlus | SEMICONDUCTORS | - |
dc.subject.keywordPlus | ORGANIZATION | - |
dc.subject.keywordPlus | DERIVATIVES | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | SERIES | - |
dc.subject.keywordAuthor | fluorine | - |
dc.subject.keywordAuthor | optoelectronics | - |
dc.subject.keywordAuthor | packing | - |
dc.subject.keywordAuthor | regioisomers | - |
dc.subject.keywordAuthor | topology | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.