Nature Photonics, volume 1, issue 9, pages 531-534

Sensitive solution-processed visible-wavelength photodetectors

Gerasimos Konstantatos 1
Jason Clifford 1
Larissa Levina 1
Edward H Sargent 1
1
 
Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada
Publication typeJournal Article
Publication date2007-09-03
Journal: Nature Photonics
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor35
ISSN17494885, 17494893
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Abstract
One billion image sensors worldwide render optical images as digital photographs in video cameras, still cameras and camera phones. These silicon-based sensors monolithically integrate photodetection with electronic readout. However, silicon photodiodes rely on a smaller bandgap than that required for visible detection; this degrades visible-wavelength sensitivity and produces unwanted infrared sensitivity. Thin-film top-surface visible photodetectors have therefore been investigated based on amorphous1, organic2 and colloidal quantum-dot3 semiconductors. However, none of these devices has exhibited visible sensitivity approaching that of silicon. Here we report a sensitive solution-processed photodetector that, across the entire visible spectrum, exhibits D* (normalized detectivity) greater than 5 × 1012 Jones (a unit of detectivity equivalent to cm Hz1/2 W−1). A photoconductive gain of >100 has been measured, facilitating high-fidelity electronic readout, and the linear dynamic range is greater than 60 dB, as required for high-contrast applications. These photodetectors are also compatible with flexible organic-based electronics.

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Konstantatos G. et al. Sensitive solution-processed visible-wavelength photodetectors // Nature Photonics. 2007. Vol. 1. No. 9. pp. 531-534.
GOST all authors (up to 50) Copy
Konstantatos G., Clifford J., Levina L., Sargent E. H. Sensitive solution-processed visible-wavelength photodetectors // Nature Photonics. 2007. Vol. 1. No. 9. pp. 531-534.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/nphoton.2007.147
UR - https://doi.org/10.1038/nphoton.2007.147
TI - Sensitive solution-processed visible-wavelength photodetectors
T2 - Nature Photonics
AU - Konstantatos, Gerasimos
AU - Clifford, Jason
AU - Levina, Larissa
AU - Sargent, Edward H
PY - 2007
DA - 2007/09/03 00:00:00
PB - Springer Nature
SP - 531-534
IS - 9
VL - 1
SN - 1749-4885
SN - 1749-4893
ER -
BibTex |
Cite this
BibTex Copy
@article{2007_Konstantatos,
author = {Gerasimos Konstantatos and Jason Clifford and Larissa Levina and Edward H Sargent},
title = {Sensitive solution-processed visible-wavelength photodetectors},
journal = {Nature Photonics},
year = {2007},
volume = {1},
publisher = {Springer Nature},
month = {sep},
url = {https://doi.org/10.1038/nphoton.2007.147},
number = {9},
pages = {531--534},
doi = {10.1038/nphoton.2007.147}
}
MLA
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MLA Copy
Konstantatos, Gerasimos, et al. “Sensitive solution-processed visible-wavelength photodetectors.” Nature Photonics, vol. 1, no. 9, Sep. 2007, pp. 531-534. https://doi.org/10.1038/nphoton.2007.147.
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