Abstract
Organic photovoltaic devices based on layer-evolved bulk-heterojunction (LE-BHJ) from poly{[4,4′-bis(2-ethylhexyl) dithieno(3,2-b:2′,3′-d)silole]-2,6-diyl-alt-[4,7-bis(2-thienyl)-2,1,3-benzothiadiazole]-5,5′-diyl} (Si-PCPDTBT)/[6,6]-phenyl C71 butyric acid methyl ester (PC71BM) are successfully fabricated by a sequential solution deposition process. During the process of a top layer being deposited from an appropriate cosolvent ratio control, the top layer of PC71BM vertically penetrates a pre-coated layer of Si-PCPDTBT, resulting in an inter-diffused nanostructure with an LE-BHJ surface morphology. The LE-BHJ cells exhibit improved nanoscale phase separation and comparable performance, in comparison with the conventional BHJ device. Furthermore, Ag nanoparticles (NPs) with optimized ratio embedded LE-BHJ exhibit significant enhanced efficiency in comparison with the conventional BHJ and pristine LE-BHJ devices, because the multiple scattering from the Ag NPs leads to longer optical paths, which give rise to effective absorptivity and reduced leakage current within the BHJ active film.
| Original language | English |
|---|---|
| Pages (from-to) | 325-329 |
| Number of pages | 5 |
| Journal | Organic Electronics |
| Volume | 24 |
| DOIs | |
| Publication status | Published - 2015 Jun 29 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
- Electrical and Electronic Engineering
Cite this
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Enhanced performance of layer-evolved bulk-heterojunction solar cells with Ag nanoparticles by sequential deposition. / Ahn, Sunyong; Jang, Woongsik; Park, Jong Hyeok; Wang, Dong Hwan.
In: Organic Electronics, Vol. 24, 29.06.2015, p. 325-329.Research output: Contribution to journal › Article
TY - JOUR
T1 - Enhanced performance of layer-evolved bulk-heterojunction solar cells with Ag nanoparticles by sequential deposition
AU - Ahn, Sunyong
AU - Jang, Woongsik
AU - Park, Jong Hyeok
AU - Wang, Dong Hwan
PY - 2015/6/29
Y1 - 2015/6/29
N2 - Organic photovoltaic devices based on layer-evolved bulk-heterojunction (LE-BHJ) from poly{[4,4′-bis(2-ethylhexyl) dithieno(3,2-b:2′,3′-d)silole]-2,6-diyl-alt-[4,7-bis(2-thienyl)-2,1,3-benzothiadiazole]-5,5′-diyl} (Si-PCPDTBT)/[6,6]-phenyl C71 butyric acid methyl ester (PC71BM) are successfully fabricated by a sequential solution deposition process. During the process of a top layer being deposited from an appropriate cosolvent ratio control, the top layer of PC71BM vertically penetrates a pre-coated layer of Si-PCPDTBT, resulting in an inter-diffused nanostructure with an LE-BHJ surface morphology. The LE-BHJ cells exhibit improved nanoscale phase separation and comparable performance, in comparison with the conventional BHJ device. Furthermore, Ag nanoparticles (NPs) with optimized ratio embedded LE-BHJ exhibit significant enhanced efficiency in comparison with the conventional BHJ and pristine LE-BHJ devices, because the multiple scattering from the Ag NPs leads to longer optical paths, which give rise to effective absorptivity and reduced leakage current within the BHJ active film.
AB - Organic photovoltaic devices based on layer-evolved bulk-heterojunction (LE-BHJ) from poly{[4,4′-bis(2-ethylhexyl) dithieno(3,2-b:2′,3′-d)silole]-2,6-diyl-alt-[4,7-bis(2-thienyl)-2,1,3-benzothiadiazole]-5,5′-diyl} (Si-PCPDTBT)/[6,6]-phenyl C71 butyric acid methyl ester (PC71BM) are successfully fabricated by a sequential solution deposition process. During the process of a top layer being deposited from an appropriate cosolvent ratio control, the top layer of PC71BM vertically penetrates a pre-coated layer of Si-PCPDTBT, resulting in an inter-diffused nanostructure with an LE-BHJ surface morphology. The LE-BHJ cells exhibit improved nanoscale phase separation and comparable performance, in comparison with the conventional BHJ device. Furthermore, Ag nanoparticles (NPs) with optimized ratio embedded LE-BHJ exhibit significant enhanced efficiency in comparison with the conventional BHJ and pristine LE-BHJ devices, because the multiple scattering from the Ag NPs leads to longer optical paths, which give rise to effective absorptivity and reduced leakage current within the BHJ active film.
UR - http://www.scopus.com/inward/record.url?scp=84933279334&partnerID=8YFLogxK
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U2 - 10.1016/j.orgel.2015.05.008
DO - 10.1016/j.orgel.2015.05.008
M3 - Article
AN - SCOPUS:84933279334
VL - 24
SP - 325
EP - 329
JO - Organic Electronics: physics, materials, applications
JF - Organic Electronics: physics, materials, applications
SN - 1566-1199
ER -