Al-Doped ZnO Film as a Transparent Conductive Substrate in Indoline-Sensitized Nanoporous ZnO Solar Cell.

2012 ◽  
Vol 1494 ◽  
pp. 345-350
Author(s):  
B. Onwona-Agyeman ◽  
M. Nakao ◽  
G.R.A. Kumara ◽  
T. Kitaoka
Keyword(s):  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Zno Film ◽  
Dye Sensitized ◽  
Conductive Substrate ◽  
Diffraction Peaks ◽  
Doped Zno ◽  
Sensitized Solar Cells

ABSTRACTWe have deposited porous ZnO films on aluminum-doped ZnO (ZnO/AZO) and fluorine-doped tin oxide (ZnO/FTO) transparent substrates, and annealed both in air at 500°C. X-ray diffraction measurements of the nanoporous ZnO films after heat treatment showed that, ZnO/AZO film exhibited a dominant (002) diffraction while the ZnO/FTO showed mixed diffraction peaks with the (100) and (101) being dominant. Dye-sensitized solar cells (DSC) based on the sensitization of the porous ZnO films on AZO and FTO substrates with an indoline dye were constructed. The photoaction spectrum, which is a measure of the degree of sunlight harvesting, was broad and higher in the ZnO/AZO DSC than that of the ZnO/FTO DSC. Conversion efficiency of 7.3 % was obtained for the ZnO/AZO DSC while 4.5 % was recorded for the ZnO/FTO. The superior photovoltaic performance of the ZnO/AZO DSC is attributed to better ZnO film orientation after thermal treatment and the higher sunlight harvesting.

scholarly journals Performances of spin coated silver doped ZnO photoanode based dye sensitized solar cell

2017 ◽  
Vol 11 (3) ◽  
pp. 213-219 ◽  
Author(s):  
Amrik Singh ◽  
Devendra Mohan ◽  
Singh Ahlawat ◽  
R Richa
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Films ◽  
Zno Film ◽  
Dye Sensitized ◽  
Tauc Plot ◽  
In Doping ◽  
Two Samples ◽  
Doped Zno ◽  
Sensitized Solar Cells

Dye sensitized solar cells (DSSCs) were fabricated using silver doped ZnO films deposited on ITO glass by spin coating method. The crystalline nature of ZnO films was analysed with XRD and SEM technique was used for morphological studies. The XRD pattern confirmed the presence of single phase hexagonal wurtzite ZnO structure, without the presence of secondary phase. The crystallite size of ZnO decreased from 31 nm to 25 nm with increase in doping to 1.5mol% of silver. The UV-visible transmission of the prepared ZnO film was found to be 70-90% and it decreased with increase in doping to 0.5mol% Ag and increased in the film doped with 1.5mol% Ag. The band gap values of the ZnO films with 0, 0.5 and 1.5mol% of silver, determined from Tauc plot, were 3.269, 3.235 and 3.257 eV, respectively. The absorbance peaks of the N719 dye loaded ZnO films were obtained at the wavelengths 310, 350 and 538 nm. The N719 dye loaded ZnO film doped with 0.5mol% Ag has the highest absorbance in the visible region as compared to other two samples. The fill factor values of the pure and ZnO doped with 0.5 and 1.5mol% Ag were 0.47, 0.48 and 0.42, respectively. The short circuit density values for ZnO, ZnO:Ag0.5% and ZnO:Ag1.5% were found to be 1.50, 1.55 and 1.15 A?m/cm2, respectively. The calculated photon to electron efficiencies for the ZnO films with 0, 0.5 and 1.5mol% of silver were 0.42%, 0.44% and 0.27%, respectively. Consequently future prospective of such type of dopants in ZnO film based dye sensitized solar cells seems to be bright.

Transparent conductive Ga-doped ZnO films and their application in dye-sensitized solar cells

2012 ◽  
Vol 60 (12) ◽  
pp. 2025-2028 ◽  
Author(s):  
Ji-Hong Kim ◽  
Kyung-Ju Lee ◽  
Ji-Hyung Roh ◽  
Sang-Woo Song ◽  
Jae-Ho Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Films ◽  
Dye Sensitized ◽  
Doped Zno ◽  
Sensitized Solar Cells

Chemical Modification on Hierarchically Structured ZnO Films for Energy Conversion Efficiency Enhancement of Dye-Sensitized Solar Cells

2008 ◽  
Vol 1102 ◽  
Author(s):  
Qifeng Zhang ◽  
Samson A Jenekhe ◽  
Guozhong Cao
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Zno Films ◽  
Zno Film ◽  
Dye Sensitized ◽  
Induced Changes ◽  
Sensitized Solar Cells

AbstractWe report the synthesis of ZnO aggregates in the presence of lithium salt and the enhancement on the energy conversion efficiency of dye sensitized solar cells when the photoelectrode films consist of as-synthesized ZnO aggregates. The conversion efficiency for ZnO film consisting of aggregates synthesized with lithium involvement is significantly improved up to 5.8%, which is 32% higher than that of 4.4% obtained for pure ZnO film. Such an enhancement can be attributed to the effect of lithium-induced changes on the morphology and crystallinity of aggregates, the optical absorption of films, and the surface chemistry of ZnO, which provides the film with decreased electron trapping and increased refractive index, and enhances the electronic coupling between the dye molecules and ZnO.

Mesoporous F-doped ZnO prism arrays with significantly enhanced photovoltaic performance for dye-sensitized solar cells

2011 ◽  
Vol 196 (23) ◽  
pp. 10518-10525 ◽  
Author(s):  
Lijuan Luo ◽  
Wei Tao ◽  
Xiaoyan Hu ◽  
Ting Xiao ◽  
Bojun Heng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Doped Zno ◽  
Sensitized Solar Cells

Affection of Post-Nitrogen-Doping of ZnO Columnar Films Photo-Anode on Performance of Dye-Sensitized Solar Cells

2014 ◽  
Vol 875-877 ◽  
pp. 1899-1903
Author(s):  
Hong Quan Zhou ◽  
Xiao Ping Zou ◽  
Gang Qiang Yang ◽  
Gong Qing Teng ◽  
Zong Bo Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
Dye Sensitized Solar Cells ◽  
Phase Method ◽  
Zno Films ◽  
Nitrogen Doped ◽  
Dye Sensitized ◽  
Doped Zno ◽  
P Type ◽  
Sensitized Solar Cells

ZnO was a promising n-type conductive semiconductor material for dye-sensitized solar cells. Stable and efficient preparation of high quality p-type ZnO films became the main difficulty in current research. In this paper, a nitrogen-doped ZnO columnar film on an indium tin oxide (ITO) substrate was successfully obtained by gas phase method. The absorption of visible light was improved by nitrogen-doped ZnO columnar films. This experiment provided a good strategy for the full utilization of solar energy.

Sign in / Sign up

Export Citation Format

Share Document