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Baking impact on photoelectrochemical cells performance of electrodeposited CdSe films |
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| Authors: | Arif V Shaikh Oh-Shim Joo Joong Kee Lee |
| Institution: | a Department of Electronic Sciences, Poona College of Arts, Science and Commerce, Camp, Pune 411001, India b School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded 431606, India c Clean Energy Research Centre, Korea Institute of Science and Technology, Seoul 130-650, Republic of Korea d Yashwantrao Mohite College, Pune, India e Inorganic Nano-Materials Laboratory, Department of Chemistry, Hanyang University, Sungdong-Ku, Haengdang-dong 17, Seoul, 133-791 Korea |
| Abstract: | Cadmium selenide (CdSe) nanocrystalline thin films in the form of upright nanocones, perpendicular to substrate surface, are grown electrochemically onto a conducting and transparent indium-tin-oxide substrate at room temperature and impact of baking under oxygen flow on their structure, morphology, optical absorbance and dark-light photoelectrochemical cell performance is explored. Crystallinity improvement followed by enhancement in the surface roughness 11-19 nm and reduction in water contact angle from 60° to 22° (±0.2)° due to baking impact showed increase in crystallite size from 25 to 100 Å. Increase in current density from 0.07 to 5.61 mA/cm2 after baking under oxygen flow has promoted the conversion efficiency to 0.5% from 0.007%. |
| Keywords: | A Thin films B Chemical synthesis C X-ray diffraction |
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