Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals

Jeffrey B. Chou, David P. Fenning, Yu Wang, Miguel Angel Mendez Polanco, Jonathan Hwang, Asmaa El-Faer, Firas Sammoura, Jaime Viegas, Mahmoud Rasras, Alexie M. Kolpak, Yang Shao-Horn, Sang Gook Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Photoelectric hot carrier generation in metal-semiconductor junctions can enable optical-to-electrical energy conversion at photon energies below the bandgap of the semiconductor. Here, we present the simulated and experimental results of our wafer-scale Au/TiO2 metallic-semiconductor photonic crystal (MSPhC). We demonstrate a broadband sub-bandgap photoresponse with a FWHM of 235 nm centered at 590 nm due to surface plasmon absorption, and we also show a photoresponse enhancement factor of 4.5 at 639 nm compared to a flat chip. Photoresponse is also shown to increase with decreasing metal thickness down to 13 nm. Applications of our results could lead to low-cost and robust photoelectrochemical and thermo-photovoltaic devices.

Original languageEnglish (US)
Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479979448
DOIs
StatePublished - Dec 14 2015
Event42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States
Duration: Jun 14 2015Jun 19 2015

Other

Other42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
CountryUnited States
CityNew Orleans
Period6/14/156/19/15

Fingerprint

Hot carriers
Photonic crystals
Energy gap
Metals
Semiconductor junctions
Semiconductor materials
Full width at half maximum
Energy conversion
Photons
Costs

Keywords

  • hot electrons
  • photonic crystal
  • photovoltaic cells
  • sub-bandgap absorption
  • surface plasmon

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Chou, J. B., Fenning, D. P., Wang, Y., Polanco, M. A. M., Hwang, J., El-Faer, A., ... Kim, S. G. (2015). Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015 [7356229] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2015.7356229

Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. / Chou, Jeffrey B.; Fenning, David P.; Wang, Yu; Polanco, Miguel Angel Mendez; Hwang, Jonathan; El-Faer, Asmaa; Sammoura, Firas; Viegas, Jaime; Rasras, Mahmoud; Kolpak, Alexie M.; Shao-Horn, Yang; Kim, Sang Gook.

2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7356229.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chou, JB, Fenning, DP, Wang, Y, Polanco, MAM, Hwang, J, El-Faer, A, Sammoura, F, Viegas, J, Rasras, M, Kolpak, AM, Shao-Horn, Y & Kim, SG 2015, Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015., 7356229, Institute of Electrical and Electronics Engineers Inc., 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 6/14/15. https://doi.org/10.1109/PVSC.2015.7356229
Chou JB, Fenning DP, Wang Y, Polanco MAM, Hwang J, El-Faer A et al. Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7356229 https://doi.org/10.1109/PVSC.2015.7356229
Chou, Jeffrey B. ; Fenning, David P. ; Wang, Yu ; Polanco, Miguel Angel Mendez ; Hwang, Jonathan ; El-Faer, Asmaa ; Sammoura, Firas ; Viegas, Jaime ; Rasras, Mahmoud ; Kolpak, Alexie M. ; Shao-Horn, Yang ; Kim, Sang Gook. / Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals. 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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AU - El-Faer, Asmaa

AU - Sammoura, Firas

AU - Viegas, Jaime

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