Novel epitaxial silicon interlayer for junction engineering in aggressively-scaled germanium photodetectors

A new technique which uses an ultra-thin silicon interlayer in germanium photodetectors for junction engineering is demonstrated. A 5 nm epitaxially grown silicon layer was effective in preventing phosphorus diffusion into bulk Ge at 625 °C. Abrupt junction profile was achieved in thin 250 nm Ge PDs...

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Bibliographic Details
Main Authors: Andy Eu-Jin Lim, Tsung-Yang Liow, Kok Kiong Chen, Roger Poh Cher Tern, Guo-Qiang Lo
Format: Article
Language:English
Published: AIP Publishing LLC 2013-09-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4821118