Development of Mid-Infrared Light-Emitting Diodes for Low-Power Optical Gas Sensors

Meriggi, L. , Steer, M. J., Ding, Y., Thayne, I. G. , MacGregor, C., Ironside, C. N. and Sorel, M. (2015) Development of Mid-Infrared Light-Emitting Diodes for Low-Power Optical Gas Sensors. In: 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), Glasgow, Scotland, 29 Jun - 02 Jul 2015, pp. 180-183. ISBN 9781479982295 (doi:10.1109/PRIME.2015.7251364)

Meriggi, L. , Steer, M. J., Ding, Y., Thayne, I. G. , MacGregor, C., Ironside, C. N. and Sorel, M. (2015) Development of Mid-Infrared Light-Emitting Diodes for Low-Power Optical Gas Sensors. In: 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), Glasgow, Scotland, 29 Jun - 02 Jul 2015, pp. 180-183. ISBN 9781479982295 (doi:10.1109/PRIME.2015.7251364)

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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.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Thayne, Professor Iain and Sorel, Professor Marc and Ironside, Professor Charles and Meriggi, Miss Laura and Steer, Dr Matthew and Ding, Dr Ying
Authors: Meriggi, L., Steer, M. J., Ding, Y., Thayne, I. G., MacGregor, C., Ironside, C. N., and Sorel, M.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISBN:9781479982295
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
586711EPSRC CASE 2011: Modelling and prototyping of Antimonide based Light Emitting Diode and Photodiode Devices for Gas Sensing ApplicationsIain ThayneEngineering & Physical Sciences Research Council (EPSRC)11330185/EP/J50ENG - ENGINEERING ELECTRONICS & NANO ENG