A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices

In this thesis, GaNAsSb-based optoelectronic device structures were grown using a solid-source molecular beam epitaxy (MBE) system in conjunction with a radio frequency (RF) plasma N source and Sb valved-cracker source. To reduce the nitrogen plasma induced defects, an ion deflection plate has been...

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Main Author: Tan, Kian Hua
Other Authors: Yoon Soon Fatt
Format: Theses and Dissertations
Language:English
Published: 2010
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Online Access:https://hdl.handle.net/10356/42311
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-423112023-07-04T17:06:06Z A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices Tan, Kian Hua Yoon Soon Fatt School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics In this thesis, GaNAsSb-based optoelectronic device structures were grown using a solid-source molecular beam epitaxy (MBE) system in conjunction with a radio frequency (RF) plasma N source and Sb valved-cracker source. To reduce the nitrogen plasma induced defects, an ion deflection plate has been installed. Four p-i-n GaNAsSb-based photodetectors have been grown using MBE for photoresponsivity measurement. The devices have shown photo-response up to a wavelength of 1380nm in the spectral response. The device with GaNAsSb layer grown at 350oC shows the highest DC responsivity of 12A/W. This high value of responsivity indicates a carrier avalanche process in the devices, even at reverse bias as low as 1V. In temporal response measurement, the device shows a pulse minimum full-width at half maximum (FWHM) of 40.5ps, corresponding to 3dB cutoff frequency of 4.5GHz. This frequency response is the highest ever reported for dilute nitride-based p-i-n photodetector. Furthermore, high speed data transmission at 5Gb/s has been demonstrated using this GaNAsSb-based p-i-n photodetector at wavelength of 1300nm. To further extend the photo-response from 1380nm to 1600nm, a GaNAsSb-based p-i-n waveguide photodetector has been grown using the molecular beam epitaxy. The device consists of a strained GaNAsSb photon-absorption layer, which has 3.5% of N and 18% of Sb. The device shows photo-response up to at least 1600nm in the spectral response. Moreover, photoresponsivity of 0.29A/W of the device at 1550nm was demonstrated. DOCTOR OF PHILOSOPHY (EEE) 2010-10-29T08:12:53Z 2010-10-29T08:12:53Z 2010 2010 Thesis Tan, K. H. (2010). A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/42311 10.32657/10356/42311 en 162 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Tan, Kian Hua
A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
description In this thesis, GaNAsSb-based optoelectronic device structures were grown using a solid-source molecular beam epitaxy (MBE) system in conjunction with a radio frequency (RF) plasma N source and Sb valved-cracker source. To reduce the nitrogen plasma induced defects, an ion deflection plate has been installed. Four p-i-n GaNAsSb-based photodetectors have been grown using MBE for photoresponsivity measurement. The devices have shown photo-response up to a wavelength of 1380nm in the spectral response. The device with GaNAsSb layer grown at 350oC shows the highest DC responsivity of 12A/W. This high value of responsivity indicates a carrier avalanche process in the devices, even at reverse bias as low as 1V. In temporal response measurement, the device shows a pulse minimum full-width at half maximum (FWHM) of 40.5ps, corresponding to 3dB cutoff frequency of 4.5GHz. This frequency response is the highest ever reported for dilute nitride-based p-i-n photodetector. Furthermore, high speed data transmission at 5Gb/s has been demonstrated using this GaNAsSb-based p-i-n photodetector at wavelength of 1300nm. To further extend the photo-response from 1380nm to 1600nm, a GaNAsSb-based p-i-n waveguide photodetector has been grown using the molecular beam epitaxy. The device consists of a strained GaNAsSb photon-absorption layer, which has 3.5% of N and 18% of Sb. The device shows photo-response up to at least 1600nm in the spectral response. Moreover, photoresponsivity of 0.29A/W of the device at 1550nm was demonstrated.
author2 Yoon Soon Fatt
author_facet Yoon Soon Fatt
Tan, Kian Hua
format Theses and Dissertations
author Tan, Kian Hua
author_sort Tan, Kian Hua
title A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
title_short A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
title_full A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
title_fullStr A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
title_full_unstemmed A study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
title_sort study of dilute nitride-antimonide semiconductors for near infrared optoelectronics devices
publishDate 2010
url https://hdl.handle.net/10356/42311
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