MEH-PPV and PCBM solution concentration dependence of inverted-type organic solar cells based on Eosin-Y-coated ZnO nanorod arrays

Riski Titian Ginting, Chi Chin Yap, Muhammad Yahaya, Muhamad Mat Salleh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The influence of polymer solution concentration on the performance of chlorobenzene- (CB-) and chloroform- (CF-) based inverted-type organic solar cells has been investigated. The organic photoactive layers consisted of poly(2-methoxy-5-(2-ethyl hexyloxy)-1,4-phenylenevinylene) (MEH-PPV) and (6,6)-phenyl Cbutyric acid methyl ester (PCBM) were spin coated from CF with concentrations of 4, 6, and 8 mg/mL and from CB with concentrations of 6, 8, and 10 mg/mL onto Eosin-Y-coated ZnO nanorod arrays (NRAs). Fluorine doped tin oxide (FTO) and silver (Ag) were used as electron collecting electrode and hole collecting electrode, respectively. Experimental results showed that the short circuit current density and power conversion efficiency increased with decrease of solution concentration for both CB and CF devices, which could be attributed to reducing charge recombination in thinner photoactive layer and larger contact area between the rougher photoactive layer and Ag contact. However, the open circuit voltage decreased with decreasing solution concentration due to increase of leakage current from ZnO NRAs to Ag as the ZnO NRAs were not fully covered by the polymer blend. The highest power conversion efficiencies of 0.54 ± 0.10 % and 0.87 ± 0.15 % were achieved at the respective lowest solution concentrations of CB and CF.

Original languageEnglish
Article number503715
JournalInternational Journal of Photoenergy
Volume2013
DOIs
Publication statusPublished - 2013

Fingerprint

Eosine Yellowish-(YS)
Nanorods
nanorods
esters
Esters
solar cells
acids
Conversion efficiency
Acids
Electrodes
Fluorine
Open circuit voltage
Polymer blends
Polymer solutions
Chloroform
Chlorine compounds
Tin oxides
Silver
Leakage currents
Short circuit currents

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

MEH-PPV and PCBM solution concentration dependence of inverted-type organic solar cells based on Eosin-Y-coated ZnO nanorod arrays. / Ginting, Riski Titian; Yap, Chi Chin; Yahaya, Muhammad; Mat Salleh, Muhamad.

In: International Journal of Photoenergy, Vol. 2013, 503715, 2013.

Research output: Contribution to journalArticle

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