title: Fabrication of bi-layer graphene and theoretical simulation for its possible application in thin film solar cell.
abstract: High quality graphene film is fabricated using mechanical exfoliation of highly-oriented pyrolytic graphite. The graphene films on glass substrates are characterized using field-emission scanning electron microscopy, atomic force microscopy, Raman spectroscopy, UV-vis spectroscopy and Fourier transform infrared spectroscopy. A very high intensity ratio of 2D to G-band (to approximately 1.67) and narrow 2D-band full-width at half maximum (to approximately 40 cm(-1)) correspond to the bi-layer graphene formation. The bi-layer graphene/p-GaN/n-InGaN/n-GaN/GaN/sAl2O3 system is studied theoretically using TCAD Silvaco software, in which the properties of exfoliated bi-layer graphene are used as transparent and conductive film, and the device exhibits an efficiency of 15.24% compared to 13.63% for ITO/p-GaN/n-InGaN/n-GaN/GaN/Al2O3 system.
authors.forename: Sanjay K
authors.initials: SK
authors.lastname: Behura
authors.forename: Pramila
authors.initials: P
authors.lastname: Mahala
authors.forename: Sasmita
authors.initials: S
authors.lastname: Nayak
authors.forename: Qiaoqin
authors.initials: Q
authors.lastname: Yang
authors.forename: Indrajit
authors.initials: I
authors.lastname: Mukhopadhyay
authors.forename: Omkar
authors.initials: O
authors.lastname: Janil