High voltage Cd-free CIGS solar cell and Application on Sensor Devices

• Main Authors: Chia-Ju Chuang, 莊佳儒
• Other Authors: Cheng-Liang Hsu
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/32250977624338843314

碩士 === 國立臺南大學 === 電機工程學系碩博士班 === 104 === In this paper, four-source co-evaporation method produced without cadmium (Cd-free) CIGS solar cells produced in the silicon substrate cadmium-free CIGS solar cells, photovoltaic conversion efficiency reached 10.96%. The growth of the polycrystalline thin film CIGS ~ 1.6μm in thickness, the width of the crystals is about 1.0 μm, respectively, and the atomic ratio of Cu: 21%, In: 17%, Ga: 10% and Se: 52%, the proportion of this element results very close to the US renewable energy laboratory (NREL) published the optimum thickness ratio. With the growth of the ZnS films by chemical bath deposition (CBD) method, by scanning electron microscopy (SEM) observation and UV-visible spectroscopy measurements that this ZnS films have a high uniformity, high transmittance (~ 80% ) and wide bandgap (~ 3.9eV). Zinc oxide RF magnetron sputtering (RF Sputtering) system doped deposition of aluminum (ZnO: Al) film, the thickness of 500nm, the transmittance and resistivity, respectively, 80% and 8 × 10-4 Ω- cm. Followed by three series of CIGS solar cells, showing three series CIGS solar cell lighting (AM 1.5G) silicon substrate current - voltage (I-V) characteristics of the photovoltaic element. Circuit current density (Jsc), open-circuit voltage (Voc), the conversion efficiency of the fill factor (FF) and CIGS solar cells (η) were 32.3 mA / cm2,1.76V, 46% and 25.9%. The second part of the thesis of copper indium gallium selenide (CIGS) thin film, molybdenum film and metal particles are bonded CIGS-based solar cell applications, this experiment will be different in different relative humidity irradiation light band of CIGS thin film and molybdenum oxide film for humidity measurement, in different environments (temperature and humidity) with white light of different frequencies on CIGS thin film made of light Prosecution and measuring the amount of gas measured at a fixed temperature portion of our molybdenum were measured at different concentrations of ammonia and fixed ammonia concentration change measured different operating temperatures. Finally, we deposited part of the metal particles applied on the surface of the window layer of a transparent conductive film AZO complete silicon substrate CIGS solar cell element of metal nano-particles and then compare whether the metal particles of the photovoltaic element characteristics differences, and integrated into the Double limit alcohol gas were measured.