Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최효성 | - |
dc.date.accessioned | 2018-03-14T08:19:10Z | - |
dc.date.available | 2018-03-14T08:19:10Z | - |
dc.date.issued | 2014-07 | - |
dc.identifier.citation | Energy & Environmental Science, Sep 2014, 7(9), P.3040-3051 | en_US |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.uri | http://pubs.rsc.org/en/Content/ArticleLanding/2014/EE/C4EE01529K#!divAbstract | - |
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 degrees 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 pi-pi 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 similar to 300 nm thick conventional single-cell device structure. The thick active layer in the PPDT2FBT: PC70BM 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 similar to 1 mm film thickness. | en_US |
dc.description.sponsorship | T. L. Nguyen, H. Choi and S.-J. Ko contributed equally to this work. This work was supported by the National Research Foundation (NRF) of Korea (2012R1A1A2005855, 2012M3A6A7055540, 2013M3C1A3065522, 2009-0093020) and the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2012T100100740). | en_US |
dc.language.iso | en | en_US |
dc.publisher | Royal SOC Chemistry | en_US |
dc.subject | LOW-BANDGAP POLYMER | en_US |
dc.subject | POWER CONVERSION EFFICIENCY | en_US |
dc.subject | ORGANIC SOLAR-CELLS | en_US |
dc.subject | CONJUGATED POLYMERS | en_US |
dc.subject | DENSITY FUNCTIONALS | en_US |
dc.subject | TANDEM POLYMER | en_US |
dc.subject | GAP POLYMERS | en_US |
dc.subject | SOLID-STATE | en_US |
dc.subject | PERFORMANCE | en_US |
dc.subject | MORPHOLOGY | en_US |
dc.title | Semi-crystalline photovoltaic polymers with efficiency exceeding 9% in a similar to 300 nm thick conventional single-cell device | en_US |
dc.type | Article | en_US |
dc.relation.no | 9 | - |
dc.relation.volume | 7 | - |
dc.identifier.doi | 10.1039/C4EE01529K | - |
dc.relation.page | 3040-3051 | - |
dc.relation.journal | ENERGY & ENVIRONMENTAL SCIENCE | - |
dc.contributor.googleauthor | Choi, Hyosung | - |
dc.contributor.googleauthor | Kim, Jin Young | - |
dc.contributor.googleauthor | Yun, Myoung Hee | - |
dc.contributor.googleauthor | Shin, Tae Joo | - |
dc.contributor.googleauthor | Nguyen, T. L. | - |
dc.contributor.googleauthor | Uddin, M. A. | - |
dc.contributor.googleauthor | Yum, S. | - |
dc.contributor.googleauthor | Jeong, J. -E. | - |
dc.contributor.googleauthor | Hwang, S. | - |
dc.contributor.googleauthor | Woo, H. Y. | - |
dc.relation.code | 2014028852 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | hschoi202 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.