Abstract
A computational model is developed to investigate the effect of vertical composition gradient on the photovoltaic properties of organic photovoltaic cell based on poly (3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61-butyric acid methyl ester (PCBM). When the photovoltaic properties of model devices with systematic variation of vertical composition distribution are calculated by using this model, it is found that the efficiency increases almost linearly as the concentrations of P3HT and PCBM become richer near anode and cathode, respectively. The larger exciton generation near anode due to enrichment of P3HT near the anode contributes mainly to an increase of the device efficiency by compensating the lower hole mobility of P3HT with shorter pathway to the anode.
| Original language | English |
|---|---|
| Article number | 114521 |
| Journal | Journal of Applied Physics |
| Volume | 110 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Effect of the vertical composition gradient of active layer on the performance of bulk-heterojunction organic photovoltaic cell. / Nam, Young Min; Huh, June; Jo, Won Ho.
In: Journal of Applied Physics, Vol. 110, No. 11, 114521, 01.12.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of the vertical composition gradient of active layer on the performance of bulk-heterojunction organic photovoltaic cell
AU - Nam, Young Min
AU - Huh, June
AU - Jo, Won Ho
PY - 2011/12/1
Y1 - 2011/12/1
N2 - A computational model is developed to investigate the effect of vertical composition gradient on the photovoltaic properties of organic photovoltaic cell based on poly (3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61-butyric acid methyl ester (PCBM). When the photovoltaic properties of model devices with systematic variation of vertical composition distribution are calculated by using this model, it is found that the efficiency increases almost linearly as the concentrations of P3HT and PCBM become richer near anode and cathode, respectively. The larger exciton generation near anode due to enrichment of P3HT near the anode contributes mainly to an increase of the device efficiency by compensating the lower hole mobility of P3HT with shorter pathway to the anode.
AB - A computational model is developed to investigate the effect of vertical composition gradient on the photovoltaic properties of organic photovoltaic cell based on poly (3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61-butyric acid methyl ester (PCBM). When the photovoltaic properties of model devices with systematic variation of vertical composition distribution are calculated by using this model, it is found that the efficiency increases almost linearly as the concentrations of P3HT and PCBM become richer near anode and cathode, respectively. The larger exciton generation near anode due to enrichment of P3HT near the anode contributes mainly to an increase of the device efficiency by compensating the lower hole mobility of P3HT with shorter pathway to the anode.
UR - http://www.scopus.com/inward/record.url?scp=84859373462&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859373462&partnerID=8YFLogxK
U2 - 10.1063/1.3666061
DO - 10.1063/1.3666061
M3 - Article
AN - SCOPUS:84859373462
VL - 110
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 11
M1 - 114521
ER -