Influence of organic salt concentration on the performance of bulk heterojunction organic solar cell

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5 Citations (Scopus)

Abstract

The effect of organic salt on the performance of bulk heterojunction organic solar cell was investigated by varying the concentration of tetrabutylammonium hexafluorophosphate (TBAPF6). Organic solar cells based on TBAPF6-blended poly[2-methoxy-5-(2-ethylhexyloxy)-1,4- phenylenevinylene] (MEHPPV): (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) thin films with aluminium (Al) as cathode have been fabricated on ITO substrates. The MEHPPV:PCBM films with different concentrations of TBAPF 6 (10, 20, 30 and 40 wt% with respect to MEHPPV) were deposited onto the ITO by spin coating technique, followed by deposition of Al using electron gun evaporation technique to build the devices. Experimental results showed that the short circuit current density and open circuit voltage improved with increasing of TBAPF6 concentration up to 20 wt% since more dissociated ions accumulated at the photoactive layer-electrode interfaces resulted in higher built in electric field. However, the short circuit current density and open circuit voltage started to decrease at TBAPF6 concentration of 30 wt%, indicating higher charge recombination as a result of agglomeration of TBAPF6.

Original languageEnglish
Pages (from-to)2183-2188
Number of pages6
JournalJournal of Materials Science: Materials in Electronics
Volume24
Issue number7
DOIs
Publication statusPublished - Jul 2013

Fingerprint

Butyric acid
Open circuit voltage
Aluminum
Short circuit currents
Heterojunctions
heterojunctions
Esters
Current density
Salts
solar cells
salts
Electron guns
Butyric Acid
Coating techniques
butyric acid
Spin coating
short circuit currents
ITO (semiconductors)
open circuit voltage
esters

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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title = "Influence of organic salt concentration on the performance of bulk heterojunction organic solar cell",
abstract = "The effect of organic salt on the performance of bulk heterojunction organic solar cell was investigated by varying the concentration of tetrabutylammonium hexafluorophosphate (TBAPF6). Organic solar cells based on TBAPF6-blended poly[2-methoxy-5-(2-ethylhexyloxy)-1,4- phenylenevinylene] (MEHPPV): (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) thin films with aluminium (Al) as cathode have been fabricated on ITO substrates. The MEHPPV:PCBM films with different concentrations of TBAPF 6 (10, 20, 30 and 40 wt{\%} with respect to MEHPPV) were deposited onto the ITO by spin coating technique, followed by deposition of Al using electron gun evaporation technique to build the devices. Experimental results showed that the short circuit current density and open circuit voltage improved with increasing of TBAPF6 concentration up to 20 wt{\%} since more dissociated ions accumulated at the photoactive layer-electrode interfaces resulted in higher built in electric field. However, the short circuit current density and open circuit voltage started to decrease at TBAPF6 concentration of 30 wt{\%}, indicating higher charge recombination as a result of agglomeration of TBAPF6.",
author = "Sabri, {Nasehah Syamin} and Yap, {Chi Chin} and Muhammad Yahaya and {Mat Salleh}, Muhamad",
year = "2013",
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doi = "10.1007/s10854-013-1077-6",
language = "English",
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pages = "2183--2188",
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AB - The effect of organic salt on the performance of bulk heterojunction organic solar cell was investigated by varying the concentration of tetrabutylammonium hexafluorophosphate (TBAPF6). Organic solar cells based on TBAPF6-blended poly[2-methoxy-5-(2-ethylhexyloxy)-1,4- phenylenevinylene] (MEHPPV): (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) thin films with aluminium (Al) as cathode have been fabricated on ITO substrates. The MEHPPV:PCBM films with different concentrations of TBAPF 6 (10, 20, 30 and 40 wt% with respect to MEHPPV) were deposited onto the ITO by spin coating technique, followed by deposition of Al using electron gun evaporation technique to build the devices. Experimental results showed that the short circuit current density and open circuit voltage improved with increasing of TBAPF6 concentration up to 20 wt% since more dissociated ions accumulated at the photoactive layer-electrode interfaces resulted in higher built in electric field. However, the short circuit current density and open circuit voltage started to decrease at TBAPF6 concentration of 30 wt%, indicating higher charge recombination as a result of agglomeration of TBAPF6.

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