Mid-Wavelength Infrared Responsivity of Colloidal Quantum Dot/Organic Hybrid Photodetectors

Document Type

Conference Proceeding

Publication Date

4-1-2020

Abstract

Colloidal quantum dot/organic hybrid materials approach offer a path toward engineering solution-processed photodetectors with extended spectral responsivity in the infrared. We demonstrate this approach in the technologically important thermal infrared region of mid-wavelength infrared, utilizing a solution blend of Ag2Se colloidal quantum dots and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). We report on the device fabrication and their optical, electrical, and optoelectronic properties. At room temperature, a responsivity of 0.2 mA/W was measured under 5 μm irradiation and 5 V bias. The new hybrid optoelectronic film demonstrated in this study brings the advantage of cost-effectiveness and greater fabrication versatility than the single crystal or epitaxial semiconductors that comprise today's infrared technologies.

Identifier

85085728413 (Scopus)

ISBN

[9781607688891]

Publication Title

Ecs Transactions

External Full Text Location

https://doi.org/10.1149/09701.0109ecst

e-ISSN

19385862

ISSN

19386737

First Page

109

Last Page

115

Issue

1

Volume

97

Grant

1809112

Fund Ref

National Science Foundation

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