Abstract
Spin-coating a mixture solution of P3HT and PCBM on a cold substrate largely enhanced the power conversion efficiency (PCE) of the bulk heterojunction (BHJ) solar cells. This concept was based on the abrupt decrease in the solubility of P3HT as solution temperature decreased. The selective precipitation of P3HT on the PEDOT:PSS-coated cold substrate facilitated a desirable rich composition of P3HT at the interface with the PEDOT:PSS layer. The high crystallinity of P3HT suppressed the movement of PCBM during thermal annealing, preventing aggregation of PCBM. The morphological excellence of the pristine film gave a comparable PCE to that made by the conventional fabrication process. After thermal annealing, the device made via coating on a cold substrate showed above 30% increase in PCE from the BHJ solar cells made by the conventional method. Spin-coating a mixture solution of P3HT and PCBM on a cold substrate successfully generates a desirable bulk heterojunction (BHJ). This simple process increases the power conversion efficiency by 30-40% compared with the BHJ solar cells made by the conventional method.
| Original language | English |
|---|---|
| Pages (from-to) | 1066-1071 |
| Number of pages | 6 |
| Journal | Macromolecular Rapid Communications |
| Volume | 32 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2011 Jul 15 |
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All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Materials Chemistry
- Polymers and Plastics
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Coating on a cold substrate largely enhances power conversion efficiency of the bulk heterojunction solar cell. / Oh, Jin Young; Lee, Tae Il; Myoung, Jae Min; Jeong, Unyong; Baik, Hong Koo.
In: Macromolecular Rapid Communications, Vol. 32, No. 14, 15.07.2011, p. 1066-1071.Research output: Contribution to journal › Article
TY - JOUR
T1 - Coating on a cold substrate largely enhances power conversion efficiency of the bulk heterojunction solar cell
AU - Oh, Jin Young
AU - Lee, Tae Il
AU - Myoung, Jae Min
AU - Jeong, Unyong
AU - Baik, Hong Koo
PY - 2011/7/15
Y1 - 2011/7/15
N2 - Spin-coating a mixture solution of P3HT and PCBM on a cold substrate largely enhanced the power conversion efficiency (PCE) of the bulk heterojunction (BHJ) solar cells. This concept was based on the abrupt decrease in the solubility of P3HT as solution temperature decreased. The selective precipitation of P3HT on the PEDOT:PSS-coated cold substrate facilitated a desirable rich composition of P3HT at the interface with the PEDOT:PSS layer. The high crystallinity of P3HT suppressed the movement of PCBM during thermal annealing, preventing aggregation of PCBM. The morphological excellence of the pristine film gave a comparable PCE to that made by the conventional fabrication process. After thermal annealing, the device made via coating on a cold substrate showed above 30% increase in PCE from the BHJ solar cells made by the conventional method. Spin-coating a mixture solution of P3HT and PCBM on a cold substrate successfully generates a desirable bulk heterojunction (BHJ). This simple process increases the power conversion efficiency by 30-40% compared with the BHJ solar cells made by the conventional method.
AB - Spin-coating a mixture solution of P3HT and PCBM on a cold substrate largely enhanced the power conversion efficiency (PCE) of the bulk heterojunction (BHJ) solar cells. This concept was based on the abrupt decrease in the solubility of P3HT as solution temperature decreased. The selective precipitation of P3HT on the PEDOT:PSS-coated cold substrate facilitated a desirable rich composition of P3HT at the interface with the PEDOT:PSS layer. The high crystallinity of P3HT suppressed the movement of PCBM during thermal annealing, preventing aggregation of PCBM. The morphological excellence of the pristine film gave a comparable PCE to that made by the conventional fabrication process. After thermal annealing, the device made via coating on a cold substrate showed above 30% increase in PCE from the BHJ solar cells made by the conventional method. Spin-coating a mixture solution of P3HT and PCBM on a cold substrate successfully generates a desirable bulk heterojunction (BHJ). This simple process increases the power conversion efficiency by 30-40% compared with the BHJ solar cells made by the conventional method.
UR - http://www.scopus.com/inward/record.url?scp=79960084129&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960084129&partnerID=8YFLogxK
U2 - 10.1002/marc.201100132
DO - 10.1002/marc.201100132
M3 - Article
C2 - 21542045
AN - SCOPUS:79960084129
VL - 32
SP - 1066
EP - 1071
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
SN - 1022-1336
IS - 14
ER -