Optical Study of InGaPN Film

• Main Authors: Ping-Yu Wu, 吳秉諭
• Other Authors: Ying-Sheng Huang
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/k7h5vq

碩士 === 國立臺灣科技大學 === 電子工程系 === 94 === The optical properties of In0.176Ga0.824P1-yNy / GaP films have been studied by using surface photovoltage spectroscopy (SPV) and photoluminescence (PL) techniques. From SPV and PL spectra, we observe the bandgap decreases with incorporation of nitrogen. The transitions of temperature dependence measurements (77K-400K) of SPV were fitted by the Varshni equation. The temperature parameters are also evaluated and discussed. From PL low temperature measurements, we observe their peak position is lower than SPV absorption position. It is due to the nitrogen cluster.