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Preparation of photoelectrode CNT/TiO2 doped ZnO nanocomposite by sol gel method for dye sensitized solar cell

MOHD ZIKRI RAZALI1, HUDA ABDULLAH1,* , SAHBUDIN SHAARI2, MOHD RAIHAN TAHA3

Affiliation

  1. Department of Electrical, Electronic & System, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
  2. Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
  3. Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

Abstract

This study was aims to get unique morphological structure of CNT/TiO 2 doped ZnO nanocomposite using sol gel method for better DSSC efficiency. The ZnO solution was prepared as follows; zinc acetate was dissolved in ethanol and stirred for 15 min at 60 °C. The CNT/TiO 2 solution start with a combination of 2 propanol (50 m l) anhydrate, TTIP and 0.5 gram of CNT wer e initially prepared. T he 2 solution were combined and stirred vigorously. All samples are designated as CNT/TiO2 – x, where x is the mol % of the Zn [x = (a) 0.1, (b) 1.5 and (c) 2.5]. The SEM analysis images composed of porous TiO 2 and nanoflake ZnO nanocomposite, and the thickness of the CNT/TiO 2 doped ZnO paste sample is around 19.73 µm. The XRD analysis showed two different main peaks for TiO 2 (110) and ZnO (101) were formed as anatase/hexagonal structure. The crystalline size of anatase TiO 2 nanop article was 18.04 nm, and hexagonal ZnO were 40.99 nm and 73.78 nm in diameter. The percentages efficiency ( η ) for 0.5 %, 1.5 and 2 .5 mol % were as follows 2.2 %, 2.4 % and 2.8 %%, respectively ..

Keywords

CNT/TiO2, ZnO, Sol gel method, Dye-sensitized solar cell (DSSC).

Citation

MOHD ZIKRI RAZALI, HUDA ABDULLAH, SAHBUDIN SHAARI, MOHD RAIHAN TAHA, Preparation of photoelectrode CNT/TiO2 doped ZnO nanocomposite by sol gel method for dye sensitized solar cell, Optoelectronics and Advanced Materials - Rapid Communications, 8, 5-6, May-June 2014, pp.451-456 (2014).

Submitted at: Oct. 25, 2013

Accepted at: May 15, 2014