Effect of Germanium on the TiO2 Photoanode for Dye Sensitized Solar Cell Applications. A Potential Sintering Aid

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Ahmad, M.S.^1 ; Pandey, A.K.^1 ; Rahim, N.A.^1

UM Power Energy Dedicated Advanced Center (UMPEDAC) Jalan Pantai Baharu, Wisma RandD University of Malaya, Kuala Lumpur

59990, Malaysia^1

关键词: Candidate materials;    Colloidal suspensions;    Electron recombinations;    Electron transfer;    Impedance spectroscopy;    Low sintering temperature;    Particle contacts;    UV-vis spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012015/pdf
DOI  :  10.1088/1757-899X/358/1/012015

学科分类：工业工程学

来源: IOP

【 摘 要 】

Anatase titanium-germanium (TiO2-Ge) nanocomposite has been prepared by using colloidal suspension process and investigated for photoanode to be used in dye sensitized solar cell. Ge possesses lower band gap energy compared to TiO2 and has the capability to absorb infrared region of solar spectrum. Its remarkable absorption and good electron transfer ability due to lower band gap energy makes it a potential candidate material in the field of DSSCs to counter important disadvantages such as high probability of electron recombination reactions and absorption of small region (UV region) of solar spectrum. Another advantage is its low sintering temperature which proved to be an added advantage to increase inter-particle contact which in turn leads to improved electron transfer. Scanning electron microscopy (SEM), uv-vis spectroscopy and electron impedance spectroscopy (EIS) have been employed to evaluate the effect of Ge on TiO2photoanode.