Color-selective and CMOS-compatible photodetection based on aluminum plasmonics
Bob Y Zheng1, Yumin Wang, Peter Nordlander
1Department of Electrical and Computer Engineering, Rice University, Houston, Texas, 77005, USA.
Advanced Materials (Deerfield Beach, Fla.)
|August 8, 2014
Abstract:
A color-selective, band-engineered photodetector is demonstrated. The device uses two Schottky junctions to accumulate charge in an energy well, which results in photocurrent gain and a plasmonic aluminum grating for photocurrent enhancement and red-green-blue color selectivity. This work provides a more intelligent way to design imaging sensors by integrating amplifiers and color filters directly into pixels.
