Fabrication and Characterization of Lead Sulphide Colloidal Quantum Dot Photodetectors for the Near Infrared

L. Colace, A. De Iacovo, C. Venettacci, S. Bruno

Abstract

Colloidal quantum dots are attracting a lot of interest for the fabrication of optoelectronics devices. In particular, they are suitable for simple, low cost and efficient photodetectors. Here we report on our recent results on lead sulphide colloidal quantum dot photoconductors operating in the near infrared spectral range. We describe the device fabrication process and provide an exhaustive electrical and optical characterization. The photodetectors exhibit a responsivity as high as 46 A/W and specific detectivity of about 1.7·1011 cmHz1/2W-1. Performance are investigated as a function of the voltage bias, device geometry and optical power. An evaluation of the device stability over time was also carried out.

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Paper Citation


in Harvard Style

Colace L., De Iacovo A., Venettacci C. and Bruno S. (2019). Fabrication and Characterization of Lead Sulphide Colloidal Quantum Dot Photodetectors for the Near Infrared.In Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-364-3, pages 79-84. DOI: 10.5220/0007412400790084


in Bibtex Style

@conference{photoptics19,
author={L. Colace and A. De Iacovo and C. Venettacci and S. Bruno},
title={Fabrication and Characterization of Lead Sulphide Colloidal Quantum Dot Photodetectors for the Near Infrared},
booktitle={Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2019},
pages={79-84},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007412400790084},
isbn={978-989-758-364-3},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Fabrication and Characterization of Lead Sulphide Colloidal Quantum Dot Photodetectors for the Near Infrared
SN - 978-989-758-364-3
AU - Colace L.
AU - De Iacovo A.
AU - Venettacci C.
AU - Bruno S.
PY - 2019
SP - 79
EP - 84
DO - 10.5220/0007412400790084