ZnO nanorod arrays pre-coated with DCJTB dye for inverted type hybrid solar cells incorporating P3HT donor

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Abstract

This paper reports the utilization of a fluorescent dye, 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetra-methyljulolidyl-9-enyl)-4H-pyran (DCJTB) as the surface modifier of ZnO nanorods for inverted type hybrid solar cell application. The DCJTB solution with concentrations of 10 and 15 mM was spin-coated onto the ZnO nanorod arrays grown on the fluorine-doped tin oxide glass substrate pre-coated with ZnO seed layer. The poly(3-hexylthiophene-2,5-diyl) (P3HT) as electron donor was then spin-coated onto ZnO nanorod arrays, followed by the deposition of silver as anode using magnetron sputtering technique. A large portion of pre-coated DCJTB has been redissolved and washed out in the subsequent P3HT spin coating process. Nevertheless, the increase in hydrophobicity of ZnO nanorod arrays pre-coated with DCJTB leads to improved interfacial compatibility between ZnO nanorods and P3HT. As a result, the enhanced exciton dissociation efficiency at the ZnO nanorods/P3HT interfaces results in the increment of short circuit current density and open circuit voltage. In addition, DCJTB residue covering the FTO exposed area could reduce the hole leakage current from P3HT to FTO, hence resulting in higher open circuit voltage. The device with the optimum DCJTB pre-coating concentration of 10 mM exhibited almost two times increase in power conversion efficiency as compared to that of pristine device.

Original languageEnglish
JournalJournal of Materials Science: Materials in Electronics
DOIs
Publication statusAccepted/In press - 30 Oct 2014

Fingerprint

Nanorods
nanorods
Solar cells
Coloring Agents
Dyes
solar cells
dyes
Open circuit voltage
open circuit voltage
Pyrans
Fluorine
Spin coating
short circuit currents
Hydrophobicity
hydrophobicity
Tin oxides
Fluorescent Dyes
Silver
Excitons
Leakage currents

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 = "ZnO nanorod arrays pre-coated with DCJTB dye for inverted type hybrid solar cells incorporating P3HT donor",
abstract = "This paper reports the utilization of a fluorescent dye, 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetra-methyljulolidyl-9-enyl)-4H-pyran (DCJTB) as the surface modifier of ZnO nanorods for inverted type hybrid solar cell application. The DCJTB solution with concentrations of 10 and 15 mM was spin-coated onto the ZnO nanorod arrays grown on the fluorine-doped tin oxide glass substrate pre-coated with ZnO seed layer. The poly(3-hexylthiophene-2,5-diyl) (P3HT) as electron donor was then spin-coated onto ZnO nanorod arrays, followed by the deposition of silver as anode using magnetron sputtering technique. A large portion of pre-coated DCJTB has been redissolved and washed out in the subsequent P3HT spin coating process. Nevertheless, the increase in hydrophobicity of ZnO nanorod arrays pre-coated with DCJTB leads to improved interfacial compatibility between ZnO nanorods and P3HT. As a result, the enhanced exciton dissociation efficiency at the ZnO nanorods/P3HT interfaces results in the increment of short circuit current density and open circuit voltage. In addition, DCJTB residue covering the FTO exposed area could reduce the hole leakage current from P3HT to FTO, hence resulting in higher open circuit voltage. The device with the optimum DCJTB pre-coating concentration of 10 mM exhibited almost two times increase in power conversion efficiency as compared to that of pristine device.",
author = "Lim, {Eng Liang} and Yap, {Chi Chin} and Muhammad Yahaya and Salleh, {Muhamad Mat} and {Haji Jumali}, {Mohammad Hafizuddin}",
year = "2014",
month = "10",
day = "30",
doi = "10.1007/s10854-014-2455-4",
language = "English",
journal = "Journal of Materials Science: Materials in Electronics",
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T1 - ZnO nanorod arrays pre-coated with DCJTB dye for inverted type hybrid solar cells incorporating P3HT donor

AU - Lim, Eng Liang

AU - Yap, Chi Chin

AU - Yahaya, Muhammad

AU - Salleh, Muhamad Mat

AU - Haji Jumali, Mohammad Hafizuddin

PY - 2014/10/30

Y1 - 2014/10/30

N2 - This paper reports the utilization of a fluorescent dye, 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetra-methyljulolidyl-9-enyl)-4H-pyran (DCJTB) as the surface modifier of ZnO nanorods for inverted type hybrid solar cell application. The DCJTB solution with concentrations of 10 and 15 mM was spin-coated onto the ZnO nanorod arrays grown on the fluorine-doped tin oxide glass substrate pre-coated with ZnO seed layer. The poly(3-hexylthiophene-2,5-diyl) (P3HT) as electron donor was then spin-coated onto ZnO nanorod arrays, followed by the deposition of silver as anode using magnetron sputtering technique. A large portion of pre-coated DCJTB has been redissolved and washed out in the subsequent P3HT spin coating process. Nevertheless, the increase in hydrophobicity of ZnO nanorod arrays pre-coated with DCJTB leads to improved interfacial compatibility between ZnO nanorods and P3HT. As a result, the enhanced exciton dissociation efficiency at the ZnO nanorods/P3HT interfaces results in the increment of short circuit current density and open circuit voltage. In addition, DCJTB residue covering the FTO exposed area could reduce the hole leakage current from P3HT to FTO, hence resulting in higher open circuit voltage. The device with the optimum DCJTB pre-coating concentration of 10 mM exhibited almost two times increase in power conversion efficiency as compared to that of pristine device.

AB - This paper reports the utilization of a fluorescent dye, 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetra-methyljulolidyl-9-enyl)-4H-pyran (DCJTB) as the surface modifier of ZnO nanorods for inverted type hybrid solar cell application. The DCJTB solution with concentrations of 10 and 15 mM was spin-coated onto the ZnO nanorod arrays grown on the fluorine-doped tin oxide glass substrate pre-coated with ZnO seed layer. The poly(3-hexylthiophene-2,5-diyl) (P3HT) as electron donor was then spin-coated onto ZnO nanorod arrays, followed by the deposition of silver as anode using magnetron sputtering technique. A large portion of pre-coated DCJTB has been redissolved and washed out in the subsequent P3HT spin coating process. Nevertheless, the increase in hydrophobicity of ZnO nanorod arrays pre-coated with DCJTB leads to improved interfacial compatibility between ZnO nanorods and P3HT. As a result, the enhanced exciton dissociation efficiency at the ZnO nanorods/P3HT interfaces results in the increment of short circuit current density and open circuit voltage. In addition, DCJTB residue covering the FTO exposed area could reduce the hole leakage current from P3HT to FTO, hence resulting in higher open circuit voltage. The device with the optimum DCJTB pre-coating concentration of 10 mM exhibited almost two times increase in power conversion efficiency as compared to that of pristine device.

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