Full metadata record
DC Field | Value | Language |
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dc.citation.endPage | 3051 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 3040 | - |
dc.citation.title | ENERGY & ENVIRONMENTAL SCIENCE | - |
dc.citation.volume | 7 | - |
dc.contributor.author | Nguyen, Thanh Luan | - |
dc.contributor.author | Choi, Hyosung | - |
dc.contributor.author | Ko, Seojin | - |
dc.contributor.author | Uddin, Mohammad Afsar | - |
dc.contributor.author | Walker, Bright | - |
dc.contributor.author | Yum, Seungjib | - |
dc.contributor.author | Jeong, J.E. | - |
dc.contributor.author | Yun, M.H. | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Hwang, Seongyeon | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Woo, Hanyoung | - |
dc.date.accessioned | 2023-12-22T02:13:38Z | - |
dc.date.available | 2023-12-22T02:13:38Z | - |
dc.date.created | 2014-09-03 | - |
dc.date.issued | 2014-09 | - |
dc.description.abstract | We report a series of semi-crystalline, low band gap (LBG) polymers and demonstrate the fabrication of highly efficient polymer solar cells (PSCs) in a thick single-cell architecture. The devices achieve a power conversion efficiency (PCE) of over 7% without any post-treatment (annealing, solvent additive, etc.) and outstanding long-term thermal stability for 200 h at 130 °C. These excellent characteristics are closely related to the molecular structures where intra- and/or intermolecular noncovalent hydrogen bonds and dipole-dipole interactions assure strong interchain interactions without losing solution processability. The semi-crystalline polymers form a well-distributed nano-fibrillar networked morphology with PC70BM with balanced hole and electron mobilities (a h/e mobility ratio of 1-2) and tight interchain packing (a π-π stacking distance of 3.57-3.59 A) in the blend films. Furthermore, the device optimization with a processing additive and methanol treatment improves efficiencies up to 9.39% in a ∼300 nm thick conventional single-cell device structure. The thick active layer in the PPDT2FBT:PC 70BM device attenuates incident light almost completely without damage in the fill factor (0.71-0.73), showing a high short-circuit current density of 15.7-16.3 mA cm-2. Notably, PPDT2FBT showed negligible changes in the carrier mobility even at ∼1 μm film thickness. | - |
dc.identifier.bibliographicCitation | ENERGY & ENVIRONMENTAL SCIENCE, v.7, no.9, pp.3040 - 3051 | - |
dc.identifier.doi | 10.1039/c4ee01529k | - |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.scopusid | 2-s2.0-84906243487 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/5602 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906243487 | - |
dc.identifier.wosid | 000340450100022 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Semi-crystalline photovoltaic polymers with efficiency exceeding 9% in a ∼300 nm thick conventional single-cell device | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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