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Color‐Selective and CMOS‐Compatible Photodetection Based on Aluminum Plasmonics
Author(s) -
Zheng Bob Y.,
Wang Yumin,
Nordlander Peter,
Halas Naomi J.
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401168
Subject(s) - photocurrent , photodetection , materials science , optoelectronics , grating , plasmon , photodetector , color filter array , cmos , pixel , schottky barrier , amplifier , optics , color gel , nanotechnology , physics , layer (electronics) , diode , thin film transistor
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.