Title :
Graphene on silicon-on-sapphire waveguide photodetectors
Author :
Zhenzhou Cheng ; Jiaqi Wang ; Ke Xu ; Hon Ki Tsang ; Shu, Chester
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
We describe the transfer of chemical vapor deposition grown graphene onto silicon-on-sapphire waveguides to form heterostructure waveguide photodetectors which had responsivities of 0.9 mA/W and 4.5 mA/W at 1.55 μm and 2.75 μm wavelengths, respectively.
Keywords :
chemical vapour deposition; elemental semiconductors; graphene; optical waveguides; photodetectors; silicon-on-insulator; C-Si-Al2O3; chemical vapor deposition grown graphene; heterostructure waveguide photodetectors; silicon-on-sapphire waveguide photodetectors; wavelength 1.55 mum; wavelength 2.75 mum; Current measurement; Graphene; Optical waveguides; Photodetectors; Scanning electron microscopy; Silicon; Voltage measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
