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Fine-Tuning of Molecular Energy Level of Alternating Copolymers On the basis of [1,2,5]Thiadiazolo[3,4-g]quinoxaline Derivatives for Polymer Photovoltaics
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 조원호 | - |
dc.contributor.author | Lee, Yoonkyoo | - |
dc.contributor.author | Jo, Won Ho | - |
dc.creator | 조원호 | - |
dc.date.accessioned | 2013-01-25T01:57:01Z | - |
dc.date.available | 2013-01-25T01:57:01Z | - |
dc.date.issued | 2012-04 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY C Vol.116 No.15, pp. 8379-8386 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | https://hdl.handle.net/10371/81076 | - |
dc.description.abstract | A series of low-bandgap alternating copolymers consisting of electron-accepting [1,2,5]thiadiazolo[3,4-g]quinoxaline (TQ) derivatives and electron-donating fluorene or carbazole were synthesized via the Suzuki coupling reaction. For the purpose to fine-tune the molecular energy level of alternating copolymers and thus to improve charge transfer between polymers and PCBM, two different TQ derivatives substituted with strongly electron-donating butoxy group or weakly electron-donating thienyl group were synthesized and used as a building block of alternating copolymers. Copolymers with butoxy-substituted TQ have proper lowest unoccupied molecular orbital (LUMO) energy levels for effective charge dissociation between polymer and PCBM, whereas the LUMO levels of copolymers with thienyl-substituted TQ are too close to that of PCBM to be effective for charge dissociation. The power conversion efficiency was achieved up to 2.17%, which is the highest value among the TQ:based polymer solar cells, when the blend of copolymer with butoxy-substituted TQ and [6,6]phenyl-C-71-butyric acid methyl ester was used as an active layer material in bulk heterojunction solar cells. | en |
dc.language.iso | en | en |
dc.publisher | AMER CHEMICAL SOC | en |
dc.subject | 공학 | en |
dc.title | Fine-Tuning of Molecular Energy Level of Alternating Copolymers On the basis of [1,2,5]Thiadiazolo[3,4-g]quinoxaline Derivatives for Polymer Photovoltaics | en |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 이윤규 | - |
dc.description.srnd | OAIID:oai:osos.snu.ac.kr:snu2012-01/102/0000001236/6 | - |
dc.description.srnd | SEQ:6 | - |
dc.description.srnd | PERF_CD:SNU2012-01 | - |
dc.description.srnd | EVAL_ITEM_CD:102 | - |
dc.description.srnd | USER_ID:0000001236 | - |
dc.description.srnd | ADJUST_YN:Y | - |
dc.description.srnd | EMP_ID:A004558 | - |
dc.description.srnd | DEPT_CD:445 | - |
dc.description.srnd | CITE_RATE:4.805 | - |
dc.description.srnd | FILENAME:5. Fine-Tuning of Molecular Energy Level of Alternating Copolymers.pdf | - |
dc.description.srnd | DEPT_NM:재료공학부 | - |
dc.description.srnd | EMAIL:whjpoly@snu.ac.kr | - |
dc.description.srnd | SCOPUS_YN:Y | - |
dc.description.srnd | CONFIRM:Y | - |
dc.identifier.srnd | 2012-01/102/0000001236/6 | - |
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