The effects of annealing process on MgZnO structure and optical properties

• Main Authors: Bo-Chang Ching, 江柏璋
• Other Authors: 洪魏寬
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/4h8pnn

碩士 === 國立臺北科技大學 === 光電工程系研究所 === 98 === Zinc oxide (ZnO) nanorods were coating with the MgxZn1-xO alloy using pulse laser deposition (PLD) method. The photoluminescence spectra at room temperature were measured three different peaks, 2.65eV, 3.29eV, 3.65eV. Generally speaking, the center of peak at 3.29eV was identified in ZnO near band-edge emission. When the pulse laser deposition shot was enhanced, the other UV emission appeared and increased at 3.65eV attributed to the near band-edge emission of MgxZn1-xO-shell/ZnO-core. Second, Annealing at different surroundings conditions result in blue or red shift of near band-edge emission of MgxZn1-xO-shell/ZnO-core. The relative intensity between ZnO NBE and MgxZn1-xO-shell/ZnO-core would get a variation. Finally, we use pulse laser to assisted MgxZn1-xO-shell/ZnO-core nanorods, and compare the scanning electron microscope picture and photoluminescence spectra.