Mid-infrared colloidal quantum dot based nanoelectronics and nanooptoelectronics

Shihab B. Hafiz, Michael R. Scimeca, Ayaskanta Sahu, Dong Kyun Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electronic and optoelectronic devices fabricated from colloidal quantum dots (CQDs) provide a promising path toward realizing low-cost devices with greatly simplified device fabrication procedure, owing to their solution-processability. The impact that CQD technology would bring is expected to be significant, especially in the mid-infrared application areas, which is currently dominated by epitaxial semiconductor technologies. In this work, we introduce a new generation of infrared CQDs, namely A&Se CQDs, which has been recently uncovered to show distinct optical absorption in the mid-infrared. We report on the fabrication of solution-processed photoconductive photodetectors and discuss our analyses on the electronic and optoelectronic characteristics of our devices. We also demonstrate the feasibility of mid-infrared photodetection with a measured peak responsivity of 0.16 mA/W at 4 um under room temperature operation.

Original languageEnglish (US)
Title of host publicationSemiconductors, Dielectrics, and Metals for Nanoelectronics 17
EditorsDurga Misra, Stefan De Gendt, S. Kilgore, Koji Kita, Shadi Dayeh, K. Kakushima
PublisherElectrochemical Society Inc.
Pages11-16
Number of pages6
Edition1
ISBN (Electronic)9781607685395
DOIs
StatePublished - 2019
EventSymposium on Semiconductors, Dielectrics, and Metals for Nanoelectronics 17 - 236th ECS Meeting - Atlanta, United States
Duration: Oct 13 2019Oct 17 2019

Publication series

NameECS Transactions
Number1
Volume92
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Semiconductors, Dielectrics, and Metals for Nanoelectronics 17 - 236th ECS Meeting
CountryUnited States
CityAtlanta
Period10/13/1910/17/19

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Hafiz, S. B., Scimeca, M. R., Sahu, A., & Ko, D. K. (2019). Mid-infrared colloidal quantum dot based nanoelectronics and nanooptoelectronics. In D. Misra, S. De Gendt, S. Kilgore, K. Kita, S. Dayeh, & K. Kakushima (Eds.), Semiconductors, Dielectrics, and Metals for Nanoelectronics 17 (1 ed., pp. 11-16). (ECS Transactions; Vol. 92, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/09201.0011ecst