Photodetection enhancement in two-terminal amorphous silicon-based     devices: an experimental and computer simulation study

Stephen J. Fonash; Jingya Hou; Francisco A. Rubinelli; Murray Bennett; Scott Wiedeman; Liyou Yang; James Newton

doi:10.1117/12.169735

1 June 1994 Photodetection enhancement in two-terminal amorphous silicon-based devices: an experimental and computer simulation study

Stephen J. Fonash, Jingya Hou, Francisco A. Rubinelli, Murray Bennett, Scott Wiedeman, Liyou Yang, James Newton

Author Affiliations +

Optical Engineering, Vol. 33, Issue 6, (June 1994). https://doi.org/10.1117/12.169735

Abstract

Although amorphous silicon (a-Si:H) is very photosensitive and can be doped n and p type, it does not give effective phototransistors because of the extremely poor diffusion lengths. Hence enhanced photodetection in two-terminal a-Si:H devices is of considerable interest. Using the Analysis of Microelectronic and Photonic Structures (AMPS) computer model, we explore enhanced photodetection possibilities in two-terminal a-Si:H structures and show situations where it can occur. These situations, which we then experimentally verify, are of two types: one can yield quantum efficiencies greater than unity and the other can yield gains of 10³. Both of these enhanced photodetection situations occur because of what we term photogating.

Citation Download Citation

Stephen J. Fonash, Jingya Hou, Francisco A. Rubinelli, Murray Bennett, Scott Wiedeman, Liyou Yang, and James Newton "Photodetection enhancement in two-terminal amorphous silicon-based devices: an experimental and computer simulation study," Optical Engineering 33(6), (1 June 1994). https://doi.org/10.1117/12.169735

Published: 1 June 1994

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available