Narrowband colloidal quantum dot photodetectors for wavelength measurement applications
High performance photodetectors based on colloidal quantum dots have been demonstrated in a wide spectral range spanning from the visible to the mid infrared. Quantum dot photodetectors typically show a low-pass type spectral response with a tunable cutoff wavelength. In this paper, we propose a met...
Saved in:
Published in | Nanoscale Vol. 12; no. 18; pp. 144 - 15 |
---|---|
Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
England
Royal Society of Chemistry
14.05.2020
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | High performance photodetectors based on colloidal quantum dots have been demonstrated in a wide spectral range spanning from the visible to the mid infrared. Quantum dot photodetectors typically show a low-pass type spectral response with a tunable cutoff wavelength. In this paper, we propose a method for the realization of narrowband photodetectors based on the combination of photoconductors and optical filters, both realized with colloidal PbS quantum dots. We demonstrate that an array of such narrowband photodetectors can be effectively employed for the realization of a compact wavemeter operating in the visible and near-infrared spectral range.
PbS quantum dot narrowband photoconductors employed for the realization of a compact wavelength-meter system. |
---|---|
Bibliography: | Electronic supplementary information (ESI) available. See DOI 10.1039/d0nr02626c ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2040-3364 2040-3372 |
DOI: | 10.1039/d0nr02626c |