Abstract
A distribution-controlled bulk heterojunction (dc-BHJ) photovoltaic cell where the distribution of an electron donor and acceptor is controlled across the film was fabricated by Evaporative Spray Deposition using Ultradilute Solution (ESDUS) method, which can build a layered structure of polymer semiconductors soluble in a same solvent, and the energy conversion efficiency, PCE, of the dc-BHJ was significantly improved compared with a conventional BHJ cell. The dc-BHJ cells were fabricated by changing the ratio of a donor, regioregular poly(3-hexyl-thiophene-2,5-diyl) (P3HT), and an acceptor, a fullerene derivative (PCBM), from 2:1 to 1:2. The short circuit current, Jsc, and PCE of a dc-BHJ cell having P3HT-rich BHJ/PCBM-rich BHJ structure was 6.06 mA/cm2 and 2.15 %, respectively, while those of a conventional BHJ cell having P3HT:PCBM=1:1 layer were 5.26 mA/cm2, 1.71 %. In the dc-BHJ cells, the introduction of composition gradient brought about the increase in conversion efficiency. The transportation of photogenerated charge carriers to the collecting electrodes was improved because the better pathways should be formed in the dc-BHJ cells.
| Original language | English |
|---|---|
| Title of host publication | Organic Photovoltaics IX |
| DOIs | |
| Publication status | Published - Dec 18 2008 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 7052 |
| ISSN (Print) | 0277-786X |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
Fabrication of bulk heterojunction photovoltaic cells with controlled distribution of p-n components by Evaporative Spray deposition using Ultradilute Solution. / Shakutsui, Masato; Iwamoto, Tadashi; Maeda, Ryoji; Tsutsui, Tetsuo; Fujita, Katsuhiko.
Organic Photovoltaics IX. 2008. 705215 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7052).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Fabrication of bulk heterojunction photovoltaic cells with controlled distribution of p-n components by Evaporative Spray deposition using Ultradilute Solution
AU - Shakutsui, Masato
AU - Iwamoto, Tadashi
AU - Maeda, Ryoji
AU - Tsutsui, Tetsuo
AU - Fujita, Katsuhiko
PY - 2008/12/18
Y1 - 2008/12/18
N2 - A distribution-controlled bulk heterojunction (dc-BHJ) photovoltaic cell where the distribution of an electron donor and acceptor is controlled across the film was fabricated by Evaporative Spray Deposition using Ultradilute Solution (ESDUS) method, which can build a layered structure of polymer semiconductors soluble in a same solvent, and the energy conversion efficiency, PCE, of the dc-BHJ was significantly improved compared with a conventional BHJ cell. The dc-BHJ cells were fabricated by changing the ratio of a donor, regioregular poly(3-hexyl-thiophene-2,5-diyl) (P3HT), and an acceptor, a fullerene derivative (PCBM), from 2:1 to 1:2. The short circuit current, Jsc, and PCE of a dc-BHJ cell having P3HT-rich BHJ/PCBM-rich BHJ structure was 6.06 mA/cm2 and 2.15 %, respectively, while those of a conventional BHJ cell having P3HT:PCBM=1:1 layer were 5.26 mA/cm2, 1.71 %. In the dc-BHJ cells, the introduction of composition gradient brought about the increase in conversion efficiency. The transportation of photogenerated charge carriers to the collecting electrodes was improved because the better pathways should be formed in the dc-BHJ cells.
AB - A distribution-controlled bulk heterojunction (dc-BHJ) photovoltaic cell where the distribution of an electron donor and acceptor is controlled across the film was fabricated by Evaporative Spray Deposition using Ultradilute Solution (ESDUS) method, which can build a layered structure of polymer semiconductors soluble in a same solvent, and the energy conversion efficiency, PCE, of the dc-BHJ was significantly improved compared with a conventional BHJ cell. The dc-BHJ cells were fabricated by changing the ratio of a donor, regioregular poly(3-hexyl-thiophene-2,5-diyl) (P3HT), and an acceptor, a fullerene derivative (PCBM), from 2:1 to 1:2. The short circuit current, Jsc, and PCE of a dc-BHJ cell having P3HT-rich BHJ/PCBM-rich BHJ structure was 6.06 mA/cm2 and 2.15 %, respectively, while those of a conventional BHJ cell having P3HT:PCBM=1:1 layer were 5.26 mA/cm2, 1.71 %. In the dc-BHJ cells, the introduction of composition gradient brought about the increase in conversion efficiency. The transportation of photogenerated charge carriers to the collecting electrodes was improved because the better pathways should be formed in the dc-BHJ cells.
UR - http://www.scopus.com/inward/record.url?scp=57649101676&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57649101676&partnerID=8YFLogxK
U2 - 10.1117/12.794319
DO - 10.1117/12.794319
M3 - Conference contribution
AN - SCOPUS:57649101676
SN - 9780819472724
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Organic Photovoltaics IX
ER -