Demonstration of InAsBi photoresponse beyond 3.5 μm



Sandall, IC ORCID: 0000-0003-3532-0373, Bastiman, F, White, B, Richards, R, Mendes, D, David, JPR and Tan, CH
(2014) Demonstration of InAsBi photoresponse beyond 3.5 μm. Applied Physics Letters, 104 (17). 171109-.

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Abstract

An Indium Arsenide Bismide photodiode has been grown, fabricated, and characterized to evaluate its performance in the Mid Wave Infrared region of the spectrum. Spectral response from the diode has been obtained up to a diode temperature of 225 K. At this temperature, the diode has a cut off wavelength of 3.95 μm, compared to 3.41 μm in a reference Indium Arsenide diode, indicating that Bismuth has been incorporated to reduce the band gap of Indium Arsenide by 75 meV. Similar band gap reduction was deduced from the cut off wavelength comparison at 77 K. From the dark current data, shunt resistance values of 8 and 39 Ω at temperatures of 77 and 290 K, respectively, were obtained in our photodiode.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 27 Apr 2016 15:27
Last Modified: 15 Mar 2024 03:06
DOI: 10.1063/1.4873403
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3000887