Switchable dual-band photodetector based on PbS colloidal quantum dots for multispectral short-wavelength infrared imaging

2021 ◽  
Author(s):  
Vladimir Pejovic ◽  
Epimitheas Georgitzikis ◽  
Pawel Malinowski ◽  
Paul Heremans ◽  
David Cheyns
Keyword(s):  
Quantum Dots ◽  
Short Wavelength ◽  
Infrared Imaging ◽  
Colloidal Quantum Dots ◽  
Dual Band

scholarly journals Dual-band ultraviolet-short-wavelength infrared imaging via luminescent downshifting with colloidal quantum dots

2013 ◽  
Vol 7 (01) ◽  
pp. 1 ◽  
Author(s):  
Scott M. Geyer ◽  
Jennifer M. Scherer ◽  
Michael D. Jack ◽  
Moungi G. Bawendi ◽  
Frank B. Jaworski
Keyword(s):  
Quantum Dots ◽  
Short Wavelength ◽  
Infrared Imaging ◽  
Colloidal Quantum Dots ◽  
Dual Band

Advances in low-cost infrared imaging using II-VI colloidal quantum dots (Conference Presentation)

2017 ◽  
Author(s):  
Richard E. Pimpinella ◽  
Christopher Buurma ◽  
Anthony J. Ciani ◽  
Christoph H. Grein ◽  
Philippe Guyot-Sionnest
Keyword(s):  
Quantum Dots ◽  
Infrared Imaging ◽  
Low Cost ◽  
Colloidal Quantum Dots

Efficient Luminescent Down-Shifting Detectors Based on Colloidal Quantum Dots for Dual-Band Detection Applications

ACS Nano ◽  
2011 ◽  
Vol 5 (7) ◽  
pp. 5566-5571 ◽  
Author(s):  
Scott M. Geyer ◽  
Jennifer M. Scherer ◽  
Nosipho Moloto ◽  
Frank B. Jaworski ◽  
Moungi G. Bawendi
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Dual Band

scholarly journals Toward Green Optoelectronics: Environmental-Friendly Colloidal Quantum Dots Photodetectors

2021 ◽  
Vol 9 ◽  
Author(s):  
Sijia Miao ◽  
Yuljae Cho
Keyword(s):  
Heavy Metals ◽  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Environmentally Friendly ◽  
Functional Materials ◽  
Building Blocks ◽  
Colloidal Quantum Dots ◽  
Human Beings ◽  
Ambient Conditions

Colloidal quantum dots (CQDs) have attracted tremendous research interests in future-generation energy, electronic, optoelectronic, and bio-imaging applications due to their fascinating material properties, such as solution processability at room temperature and under ambient conditions, compatibility with various functional materials, and high photostability as well as photosensitivity. Among the various optoelectronic applications of CQDs, optical light sensors, which convert photonic energy into electrical signals, have been of particular interest because they are one of the key building blocks for modern communication and imaging applications, including medical X-ray and near-infrared imaging, visible light cameras, and machine vision. However, CQDs, which have been widely researched for photodetectors (PDs) so far, contain toxic and hazardous heavy metals, namely, lead (Pb), cadmium (Cd), and mercury (Hg). These substances are extremely toxic and harmful to the environment as well as human beings. Therefore, it is highly desirable to substitute CQDs containing heavy metals with nontoxic and environmentally friendly ones to realize green optoelectronics. In this review article, we introduce various kinds of heavy metal–free CQDs and their PD applications. This article comprehensively includes working mechanisms of PDs, various kinds of nontoxic and environmentally friendly CQD-based PDs, advanced heterojunction PDs, and discussion for future perspectives.

Low-cost II-VI colloidal quantum dots for infrared imaging and detection (Conference Presentation)

2018 ◽  
Author(s):  
Richard E. Pimpinella ◽  
Brendan W. Benapfl ◽  
Thomas Miynarski ◽  
Christoph Grein
Keyword(s):  
Quantum Dots ◽  
Infrared Imaging ◽  
Low Cost ◽  
Colloidal Quantum Dots
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