Q開關Nd:YVO4/Cr:YAG雷射之研製及其在薄膜太陽能電池刻劃上之應用

• Main Authors: Kevin Cheng, 鄭凱文
• Other Authors: Nen-Wen Pu
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/38122780469941521156

碩士 === 國防大學中正理工學院 === 應用物理研究所 === 97 === The scope of this thesis contains two part: (1) Design and fabrication of a Q-switched Nd:YVO4/Cr:YAG laser system. (2) Application of this laser system to the scribing of thin film solar cells. By varying the transmittance of the Cr:YAG crystal, we can reduce the pulse repetition rate of a Nd:YVO4/Cr:YAG laser from 740 kHz to 70 kHz, and increase the pulse energy from 1.6 μJ to 9.3 μJ. Moreover, by varying the laser energy density, the speed of scribing, and the defocusing distance, we can optimize the performance of laser scribing of Mo films on glass substrates for solar cells. We have successfully made a Q-switched Nd:YVO4/Cr:YAG laser with a wavelength of 1064 nm, an average power of 2 W, and a repetition rate of 70 kHz. In addition, it was successfully applied to the scribing of Mo films on glass substrates for solar cells.