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Reseach Article

Fractal Based Photodiode for On-Chip Energy Harvesting

Published on December 2013 by Apurva A. Pathak, Smita T. Bedarkar, Poonam T. Bedarkar
National Conference on Innovative Paradigms in Engineering & Technology 2013
Foundation of Computer Science USA
NCIPET2013 - Number 7
December 2013
Authors: Apurva A. Pathak, Smita T. Bedarkar, Poonam T. Bedarkar
4c9177f8-99e9-47c2-b231-25cbb6ad7921

Apurva A. Pathak, Smita T. Bedarkar, Poonam T. Bedarkar . Fractal Based Photodiode for On-Chip Energy Harvesting. National Conference on Innovative Paradigms in Engineering & Technology 2013. NCIPET2013, 7 (December 2013), 23-25.

@article{
author = { Apurva A. Pathak, Smita T. Bedarkar, Poonam T. Bedarkar },
title = { Fractal Based Photodiode for On-Chip Energy Harvesting },
journal = { National Conference on Innovative Paradigms in Engineering & Technology 2013 },
issue_date = { December 2013 },
volume = { NCIPET2013 },
number = { 7 },
month = { December },
year = { 2013 },
issn = 0975-8887,
pages = { 23-25 },
numpages = 3,
url = { /proceedings/ncipet2013/number7/14743-1429/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 National Conference on Innovative Paradigms in Engineering & Technology 2013
%A Apurva A. Pathak
%A Smita T. Bedarkar
%A Poonam T. Bedarkar
%T Fractal Based Photodiode for On-Chip Energy Harvesting
%J National Conference on Innovative Paradigms in Engineering & Technology 2013
%@ 0975-8887
%V NCIPET2013
%N 7
%P 23-25
%D 2013
%I International Journal of Computer Applications
Abstract

This paper presents the design and test of a photodiode with improved conversion efficiency for on-chip solar energy harvesting applications. The improved efficiency is achieved by exploiting the lateral photo response of the photodiode through the usage of diodes with fractal geometries. The fractal diodes have a large perimeter-to-area ratio which translates into more collected charges due to lateral photo response. An approximation of the quadric Koch island fractal has been designed and fabricated in a 0. 5?m CMOS process along with a rectangular photodiode of equal area but different perimeter that serves as the control. Measurements of the fabricated chip show improvements in the charge collection of the fractal-based photodiode of up to 6% with respect to the rectangular control photodiode.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Fractal Photodiode