Growth of ZnO nanostructures at different reactant concentrations for inverted organic solar cell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effects of reactant concentration on the growth of ZnO nanostructures and the photovoltaic performance of inverted organic solar cells based on a blend of poly[2-methoxy-5-(2- ethylhexyloxy)-1,4-phenylenevinylene] (MEHPPV) as donor and (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) as acceptor with a structure of FTO/ZnO nanostructures/MEHPPV:PCBM/Ag utilizing ZnO nanostructures as electron collecting layer and silver as a hole collecting electrode were investigated. The ZnO preparation consisted of ZnO nanoparticles seed layer coating and followed by ZnO nanostructures growth in equimolar aqueous solution of zinc nitrate hexahydrate (0.02-0.08 M) and hexamethylenetetramine (0.02-0.08 M). ZnO nanorods having diameter of 50-70 nm and with length up to 120 nm were obtained at reactant concentration of 0.04 M. The ZnO nanorods started to merge with each other and formed irregular nanostructures vertically on the substrates at higher reactant concentrations of 0.06 M and 0.08 M. The solar cell with ZnO nanorods prepared at reactant concentration of 0.04 M provided the largest interface area between polymer active layer and ZnO, resulting in the highest power conversion efficiency of 0.053 % with short circuit current density of 0.43 mA/cm 2, open circuit voltage of 0.42 V and fill factor of 29 %.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages71-75
Number of pages5
Volume545
DOIs
Publication statusPublished - 2012
Event2nd International Conference on the Advancement of Materials and Nanotechnology, ICAMN II 2010 - Kuala Lumpur
Duration: 29 Nov 20101 Dec 2010

Publication series

NameAdvanced Materials Research
Volume545
ISSN (Print)10226680

Other

Other2nd International Conference on the Advancement of Materials and Nanotechnology, ICAMN II 2010
CityKuala Lumpur
Period29/11/101/12/10

Fingerprint

Nanostructures
Nanorods
Butyric acid
Esters
Open circuit voltage
Short circuit currents
Conversion efficiency
Seed
Nitrates
Solar cells
Silver
Zinc
Current density
Organic solar cells
Nanoparticles
Coatings
Electrodes
Electrons
Polymers
Substrates

Keywords

  • Chemical solution method
  • Inverted organic solar cell
  • Nanorod arrays
  • ZnO nanostructures

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Growth of ZnO nanostructures at different reactant concentrations for inverted organic solar cell. / Yap, Chi Chin; Bakar, Ainu Abu; Yahaya, Muhammad; Mat Salleh, Muhamad.

Advanced Materials Research. Vol. 545 2012. p. 71-75 (Advanced Materials Research; Vol. 545).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yap, CC, Bakar, AA, Yahaya, M & Mat Salleh, M 2012, Growth of ZnO nanostructures at different reactant concentrations for inverted organic solar cell. in Advanced Materials Research. vol. 545, Advanced Materials Research, vol. 545, pp. 71-75, 2nd International Conference on the Advancement of Materials and Nanotechnology, ICAMN II 2010, Kuala Lumpur, 29/11/10. https://doi.org/10.4028/www.scientific.net/AMR.545.71
Yap, Chi Chin ; Bakar, Ainu Abu ; Yahaya, Muhammad ; Mat Salleh, Muhamad. / Growth of ZnO nanostructures at different reactant concentrations for inverted organic solar cell. Advanced Materials Research. Vol. 545 2012. pp. 71-75 (Advanced Materials Research).
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