Effect of the vertical composition gradient of active layer on the performance of bulk-heterojunction organic photovoltaic cell

Young Min Nam, June Huh, Won Ho Jo

Research output: Contribution to journalArticle

5 Citations (Scopus)

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 languageEnglish
Article number114521
JournalJournal of Applied Physics
Volume110
Issue number11
DOIs
Publication statusPublished - 2011 Dec 1
Externally publishedYes

Fingerprint

photovoltaic cells
heterojunctions
anodes
gradients
butyric acid
esters
hole mobility
cathodes
excitons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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 journalArticle

@article{a291fc26a1f8494887946626a056bac2,
title = "Effect of the vertical composition gradient of active layer on the performance of bulk-heterojunction organic photovoltaic cell",
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.",
author = "Nam, {Young Min} and June Huh and Jo, {Won Ho}",
year = "2011",
month = "12",
day = "1",
doi = "10.1063/1.3666061",
language = "English",
volume = "110",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "11",

}

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 -