Development of mid-infrared light-emitting diodes for low-power optical gas sensors

Meriggi, L.; Steer, M.; Ding, Y.; Thayne, I.; MacGregor, C.; Ironside, Charlie; Sorel, M.

doi:10.1109/PRIME.2015.7251364

Access Status

Fulltext not available

Authors

Meriggi, L.

Steer, M.

Ding, Y.

Thayne, I.

MacGregor, C.

Ironside, Charlie

Sorel, M.

Date

2015

Type

Conference Paper

Metadata

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Citation

Meriggi, L. and Steer, M. and Ding, Y. and Thayne, I. and MacGregor, C. and Ironside, C. and Sorel, M. 2015. Development of mid-infrared light-emitting diodes for low-power optical gas sensors, 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), pp. 180-183. IEEE.

Source Title

2015 11th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2015

DOI

10.1109/PRIME.2015.7251364

ISBN

9781479982295

School

Department of Physics and Astronomy

URI

http://hdl.handle.net/20.500.11937/10643

Collection

Curtin Research Publications

Abstract

This work presents the experimental investigation of different techniques to improve the electrical and optical performance of mid-infrared antimonide-based semiconductor light-emitting diodes. A study of the current crowding effect, supported by spatially-resolved photocurrent measurements, allows the design of an optimal contact geometry. Additionally, a higher fraction of the generated light is redirected towards the top surface of the device thanks to the integration of a back reflector and a resonant-cavity design. Enhanced performance for mid-IR LEDs represents a significant step forward towards power efficient optical sensors for environmental, safety and health applications.