Advanced Functional Materials, volume 22, issue 8, pages 1741-1748
High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots
Publication type: Journal Article
Publication date: 2012-02-13
Journal:
Advanced Functional Materials
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 19
ISSN: 1616301X, 16163028
Electronic, Optical and Magnetic Materials
Electrochemistry
Condensed Matter Physics
Biomaterials
Abstract
Chemically synthesized nanocrystal quantum dots (NQDs) are promising materials for applications in solution-processable optoelectronic devices such as light emitting diodes, photodetectors, and solar cells. Here, we fabricate and study two types of p-n junction photodiodes in which the photoactive p-layer is made from PbS NQDs while the transparent n-layer is fabricated from wide bandgap oxides (ZnO or TiO 2). By using a p-n junction architecture we are able to significantly reduce the dark current compared to earlier Schottky junction devices without reducing external quantum efficiency (EQE), which reaches values of up to ∼80%. The use of this device architecture also allows us to significantly reduce noise and obtain high detectivity (>10 12 cm Hz 1/2 W -1) extending to the near infrared past 1 μm. We observe that the spectral shape of the photoresponse exhibits a significant dependence on applied bias, and specifically, the EQE sharply increases around 500-600 nm at reverse biases greater than 1 V. We attribute this behavior to a turn-on of an additional contribution to the photocurrent due to electrons excited to the conduction band from the occupied mid-gap states.
Top-30
Citations by journals
1
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7
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Journal of Physical Chemistry C
7 publications, 4.83%
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Advanced Functional Materials
6 publications, 4.14%
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RSC Advances
6 publications, 4.14%
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Advanced Materials
5 publications, 3.45%
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Nanoscale
5 publications, 3.45%
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Journal of Materials Chemistry C
5 publications, 3.45%
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IEEE Transactions on Electron Devices
5 publications, 3.45%
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Applied Physics Letters
3 publications, 2.07%
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Nanomaterials
3 publications, 2.07%
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Applied Surface Science
3 publications, 2.07%
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Journal of Alloys and Compounds
3 publications, 2.07%
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Advanced Optical Materials
3 publications, 2.07%
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ACS applied materials & interfaces
3 publications, 2.07%
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ACS Photonics
3 publications, 2.07%
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CrystEngComm
3 publications, 2.07%
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Chemical Communications
3 publications, 2.07%
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Sensors
2 publications, 1.38%
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Nature Photonics
2 publications, 1.38%
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Journal of Electronic Materials
2 publications, 1.38%
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Scientific Reports
2 publications, 1.38%
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Nanotechnology
2 publications, 1.38%
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Optical Materials
2 publications, 1.38%
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Sensors and Actuators, B: Chemical
2 publications, 1.38%
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Small
2 publications, 1.38%
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Advanced Science
2 publications, 1.38%
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Nano Letters
2 publications, 1.38%
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ACS Nano
2 publications, 1.38%
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Journal of Physical Chemistry Letters
2 publications, 1.38%
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IEEE Transactions on Nanotechnology
2 publications, 1.38%
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1
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7
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Citations by publishers
5
10
15
20
25
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Royal Society of Chemistry (RSC)
25 publications, 17.24%
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American Chemical Society (ACS)
24 publications, 16.55%
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Wiley
23 publications, 15.86%
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Elsevier
18 publications, 12.41%
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Springer Nature
15 publications, 10.34%
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IEEE
10 publications, 6.9%
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Multidisciplinary Digital Publishing Institute (MDPI)
8 publications, 5.52%
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American Institute of Physics (AIP)
3 publications, 2.07%
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IOP Publishing
3 publications, 2.07%
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Taylor & Francis
2 publications, 1.38%
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American Physical Society (APS)
1 publication, 0.69%
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Uspekhi Fizicheskikh Nauk Journal
1 publication, 0.69%
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Cambridge University Press
1 publication, 0.69%
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Pleiades Publishing
1 publication, 0.69%
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Optical Society of America
1 publication, 0.69%
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American Association for the Advancement of Science (AAAS)
1 publication, 0.69%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 0.69%
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5
10
15
20
25
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Pal B. N. et al. High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots // Advanced Functional Materials. 2012. Vol. 22. No. 8. pp. 1741-1748.
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Pal B. N., Robel I., Mohite A. D., Laocharoensuk R., Werder D. J., Klimov V. I. High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots // Advanced Functional Materials. 2012. Vol. 22. No. 8. pp. 1741-1748.
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TY - JOUR
DO - 10.1002/adfm.201102532
UR - https://doi.org/10.1002/adfm.201102532
TI - High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots
T2 - Advanced Functional Materials
AU - Pal, Bhola N
AU - Robel, Istvan
AU - Mohite, Aditya D.
AU - Laocharoensuk, Rawiwan
AU - Werder, Donald J
AU - Klimov, Victor I.
PY - 2012
DA - 2012/02/13 00:00:00
PB - Wiley
SP - 1741-1748
IS - 8
VL - 22
SN - 1616-301X
SN - 1616-3028
ER -
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@article{2012_Pal,
author = {Bhola N Pal and Istvan Robel and Aditya D. Mohite and Rawiwan Laocharoensuk and Donald J Werder and Victor I. Klimov},
title = {High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots},
journal = {Advanced Functional Materials},
year = {2012},
volume = {22},
publisher = {Wiley},
month = {feb},
url = {https://doi.org/10.1002/adfm.201102532},
number = {8},
pages = {1741--1748},
doi = {10.1002/adfm.201102532}
}
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MLA
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Pal, Bhola N., et al. “High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots.” Advanced Functional Materials, vol. 22, no. 8, Feb. 2012, pp. 1741-1748. https://doi.org/10.1002/adfm.201102532.