Integrated PbS colloidal quantum dot photodiodes on silicon nitride waveguides
- Author
- Chao Pang (UGent) , Yuhao Deng (UGent) , Ezat Kheradmand (UGent) , Nithin Poonkottil (UGent) , Robin Petit (UGent) , Lukas Elsinger, Christophe Detavernier (UGent) , Pieter Geiregat (UGent) , Zeger Hens (UGent) and Dries Van Thourhout (UGent)
- Organization
- Project
- Abstract
- Colloidal quantum dots (QDs) have become a versatile optoelectronic material for emitting and detecting light that can overcome the limitations of a range of electronic and photonic technology platforms. Photonic integrated circuits (PICs), for example, face the persistent challenge of combining active materials with passive circuitry ideally suited for guiding light. Here, we demonstrate the integration of photodiodes (PDs) based on PbS QDs on silicon nitride waveguides (WG). Analyzing planar QDPDs first, we argue that the main limitation WG-coupled QDPDs face is detector saturation induced by the high optical power density of the guided light. Using the cladding thickness and waveguide width as design parameters, we mitigate this issue, and we demonstrate WG-QDPDs with an external quantum efficiency of 67.5% at 1275 nm that exhibit a linear photoresponse for input powers up to 400 nW. In the next step, we demonstrate a compact infrared spectrometer by integrating these WG-QDPDs on the output channels of an arrayed waveguide grating demultiplexer. This work provides a path toward a low-cost PD solution for PICs, which are attractive for large-scale production.
- Keywords
- colloidal quantum dots, photodiode, waveguide, silicon nitride, photonics integration, PHOTONIC CIRCUITS, PHASED-ARRAYS, AWG, Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Biotechnology, Electronic, Optical and Magnetic Materials
Downloads
-
(...).pdf
- full text (Published version)
- |
- UGent only
- |
- |
- 3.61 MB
-
Pang C et al Accepted Manuscript.pdf
- full text (Accepted manuscript)
- |
- open access
- |
- |
- 985.88 KB
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01HM8MFJDP104AZNSF799TWVWJ
- MLA
- Pang, Chao, et al. “Integrated PbS Colloidal Quantum Dot Photodiodes on Silicon Nitride Waveguides.” ACS PHOTONICS, vol. 10, no. 12, 2023, pp. 4215–24, doi:10.1021/acsphotonics.3c00945.
- APA
- Pang, C., Deng, Y., Kheradmand, E., Poonkottil, N., Petit, R., Elsinger, L., … Van Thourhout, D. (2023). Integrated PbS colloidal quantum dot photodiodes on silicon nitride waveguides. ACS PHOTONICS, 10(12), 4215–4224. https://doi.org/10.1021/acsphotonics.3c00945
- Chicago author-date
- Pang, Chao, Yuhao Deng, Ezat Kheradmand, Nithin Poonkottil, Robin Petit, Lukas Elsinger, Christophe Detavernier, Pieter Geiregat, Zeger Hens, and Dries Van Thourhout. 2023. “Integrated PbS Colloidal Quantum Dot Photodiodes on Silicon Nitride Waveguides.” ACS PHOTONICS 10 (12): 4215–24. https://doi.org/10.1021/acsphotonics.3c00945.
- Chicago author-date (all authors)
- Pang, Chao, Yuhao Deng, Ezat Kheradmand, Nithin Poonkottil, Robin Petit, Lukas Elsinger, Christophe Detavernier, Pieter Geiregat, Zeger Hens, and Dries Van Thourhout. 2023. “Integrated PbS Colloidal Quantum Dot Photodiodes on Silicon Nitride Waveguides.” ACS PHOTONICS 10 (12): 4215–4224. doi:10.1021/acsphotonics.3c00945.
- Vancouver
- 1.Pang C, Deng Y, Kheradmand E, Poonkottil N, Petit R, Elsinger L, et al. Integrated PbS colloidal quantum dot photodiodes on silicon nitride waveguides. ACS PHOTONICS. 2023;10(12):4215–24.
- IEEE
- [1]C. Pang et al., “Integrated PbS colloidal quantum dot photodiodes on silicon nitride waveguides,” ACS PHOTONICS, vol. 10, no. 12, pp. 4215–4224, 2023.
@article{01HM8MFJDP104AZNSF799TWVWJ,
abstract = {{Colloidal quantum dots (QDs) have become a versatile optoelectronic material for emitting and detecting light that can overcome the limitations of a range of electronic and photonic technology platforms. Photonic integrated circuits (PICs), for example, face the persistent challenge of combining active materials with passive circuitry ideally suited for guiding light. Here, we demonstrate the integration of photodiodes (PDs) based on PbS QDs on silicon nitride waveguides (WG). Analyzing planar QDPDs first, we argue that the main limitation WG-coupled QDPDs face is detector saturation induced by the high optical power density of the guided light. Using the cladding thickness and waveguide width as design parameters, we mitigate this issue, and we demonstrate WG-QDPDs with an external quantum efficiency of 67.5% at 1275 nm that exhibit a linear photoresponse for input powers up to 400 nW. In the next step, we demonstrate a compact infrared spectrometer by integrating these WG-QDPDs on the output channels of an arrayed waveguide grating demultiplexer. This work provides a path toward a low-cost PD solution for PICs, which are attractive for large-scale production.}},
author = {{Pang, Chao and Deng, Yuhao and Kheradmand, Ezat and Poonkottil, Nithin and Petit, Robin and Elsinger, Lukas and Detavernier, Christophe and Geiregat, Pieter and Hens, Zeger and Van Thourhout, Dries}},
issn = {{2330-4022}},
journal = {{ACS PHOTONICS}},
keywords = {{colloidal quantum dots,photodiode,waveguide,silicon nitride,photonics integration,PHOTONIC CIRCUITS,PHASED-ARRAYS,AWG,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Biotechnology,Electronic, Optical and Magnetic Materials}},
language = {{eng}},
number = {{12}},
pages = {{4215--4224}},
title = {{Integrated PbS colloidal quantum dot photodiodes on silicon nitride waveguides}},
url = {{http://doi.org/10.1021/acsphotonics.3c00945}},
volume = {{10}},
year = {{2023}},
}
- Altmetric
- View in Altmetric
- Web of Science
- Times cited: