Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Jun 17;7:11954. doi: 10.1038/ncomms11954

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) Responsivity and EQE of the visible/near-infrared phototransistor as function of applied V_TD. Blue line is a guide to the eye. (b) Normalized photoresponse as a function of light modulation frequency for V_TD values specified in the legend. Light modulation frequency swept in the 250–3,000 Hz range. Inset: extracted 3 dB bandwidth values as a function of applied V_TD and used for EQE calculations. (c) Photo-induced signal as a function of incident irradiance. Lowest detectable irradiance of 10⁻⁵ W m⁻² was measured at V_TD=1.2 V. The linear dynamic range of the detector increases with increasing V_TD reaching over 110 dB at the optimal V_TD. Selected V_TD values are shown in the legend. Inset demonstrates the linearity of photoresponse for high irradiance values. (d) Measured responsivity of the detector in V W⁻¹ (left axis) and responsivity converted in A W⁻¹ (right axis, see Methods) as a function of incident irradiance. Selected V_TD values are shown in the legend. The Illumination wavelength is 635 nm.