Fabrication of nanopatterned germanium surface by laser-induced etching: AFM, Raman and PL studies |
| |
Authors: | Manoj Kumar HS Mavi S Rath AK Shukla VD Vankar |
| |
Institution: | aDepartment of Physics, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India;bDepartment of Physics and Astrophysics, University of Delhi, New Delhi 110007, India |
| |
Abstract: | Fabrication of the nanopatterned germanium (Ge) surface is done by laser-induced etching. Atomic force microscopy is utilized here to study the surface and sizes of Ge nanoparticles. Raman and photoluminescence (PL) spectroscopy have been used to characterize their vibrational and light emission properties. Wavelength-dependent Raman investigations of these nanopatterned Ge surface reveal spatial distribution of sizes of nanoparticles. Nanopatterned Ge structures (etched for 60 min) emit a broad PL band having two maxima at 2.1 and 2.35 eV. |
| |
Keywords: | Ge nanoparticles Raman spectroscopy Photoluminescence |
本文献已被 ScienceDirect 等数据库收录! |