2026-09-20T13:02:14Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/26349 2023-07-10 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Chuang, Shun-Lien Zuo, Daniel Y. 2011-08-26T15:24:26Z 2011-08-26T15:24:26Z 2013-08-27T10:00:24Z 2011-08-26T15:24:26Z 2011-08 The wide variety of applications for mid- and far-infrared detection has spurred the study of cutting-edge technologies for use in the next genera- tion of detectors in place of the current systems, such as mercury cadmium telluride. While type-II superlattices over a number of advantages in design and material quality, theoretical predictions of their high performance have yet to be realized. This work concentrates on novel designs, fabrication, and characterization of type-II superlattice infrared detectors. In this work we present the first InAs/GaSb type-II superlattice photode- tectors grown on an InAs substrate via metal-organic chemical vapor depo- sition. The design and fabrication of the devices are detailed, along with several characterization processes, including low-temperature electron beam induced current (EBIC) to study structural defects. Through this work, the optical absorption of the undoped substrate was shown to be significantly lower than that of GaSb. The detectors have a cutoff wavelength (50% re- sponsivity) of 9.5 um at 78 K. Their R0A values are on the order of 10^-2 Ohm*cm2. The typical peak responsivity is 1.9 A/W, and the devices have a peak detectivity of 6.8 * 10^9 cm*Hz^1/2 /W at 78 K. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-07-16T16:05:18Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Masters Thesis.zip: 10489811 bytes, checksum: 33f143169517c6e6895eeb76444d9325 (MD5) Zuo_Daniel.pdf: 2715636 bytes, checksum: 65802087b6596e1de9f43183f29e7f57 (MD5) Made available in DSpace on 2011-08-26T15:24:26Z (GMT). No. of bitstreams: 3 Zuo_Daniel.pdf: 2715636 bytes, checksum: 65802087b6596e1de9f43183f29e7f57 (MD5) license.txt: 4056 bytes, checksum: 6375a34475e80a792f7877b4ef29b1bd (MD5) Masters Thesis.zip: 10489811 bytes, checksum: 33f143169517c6e6895eeb76444d9325 (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2011-08-26T15:26:19Z Item is restricted until 2013-08-26T15:25:28Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2013-08-27T10:00:24Z Item was in collections: University of Illinois Dissertations and Theses (ID: 204) Dissertations and Theses - Electrical and Computer Engineering (ID: 446) No. of bitstreams: 4 Zuo_Daniel.pdf.txt: 65768 bytes, checksum: e9e0ed305aa8cd18b7a6c5abbc00e5bb (MD5) Zuo_Daniel.pdf: 2715636 bytes, checksum: 65802087b6596e1de9f43183f29e7f57 (MD5) license.txt: 4056 bytes, checksum: 6375a34475e80a792f7877b4ef29b1bd (MD5) Masters Thesis.zip: 10489811 bytes, checksum: 33f143169517c6e6895eeb76444d9325 (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2013-08-27T10:00:24Z http://hdl.handle.net/2142/26349 en Copyright 2011 Daniel Y. Zuo Infrared detectors Type-II Superlattice Photodiode InAs substrate electron beam induced current (EBIC) Antimony-based type-II superlattice infrared photodetectors on indium-arsenide substrates Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Thesis M.S. MS:Electr & Computer Eng-UIUC 10KS1200MS