hh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Optical Characterization of Quantum-Dots-in-a-Well Infrared Photodetectors Under External Perturbations
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
2008 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

In this project we have used Fourier transform infrared spectroscopy to study the photoresponse of two different types of quantum dot-in-a-well infrared photodetectors (DWELL QDIPs). The basic task was to compare the photoresponse of these two detectors, and to study the influence of external resonant laser pumping on the photoresponse. Series of measurements were done at 77K. In the first measurements we investigated the photoresponse for different applied voltages at 77K.

In a second run of experiments, we used a 1064 nm infrared semiconductor laser to resonantly

pump the fundamental transition of the quantum dots. The results show that by using this

additional illumination the photoresponse was dramatically increased by creating additional

charge carriers in the quantum dots. This could be used to increase the sensitivity of infrared

detectors based on QDs.

Place, publisher, year, edition, pages
Högskolan i Halmstad/Sektionen för Informationsvetenskap, Data- och Elektroteknik (IDE) , 2008.
Keywords [en]
Infrared Photodetectors, Quantum-Dots-in-a-Well
Identifiers
URN: urn:nbn:se:hh:diva-1659Local ID: 2082/2040OAI: oai:DiVA.org:hh-1659DiVA, id: diva2:238877
Uppsok
Technology
Available from: 2008-06-27 Created: 2008-06-27 Last updated: 2008-06-27

Open Access in DiVA

fulltext(1462 kB)438 downloads
File information
File name FULLTEXT01.pdfFile size 1462 kBChecksum MD5
03956bf0d69cf6dddee28770c5ec31c6d4068a8fbc7c5f2f754826b41d9a06ea1e6da9c21d254e82a09a4e089487a3584fc39c74d96837223c1075c67d1179edeeeb39dde03eb8790dc594f4027d3f75
Type fulltextMimetype application/pdf

By organisation
School of Information Science, Computer and Electrical Engineering (IDE)

Search outside of DiVA

GoogleGoogle Scholar
Total: 438 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 204 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf