Freeform surface relief diffractive optic for photovoltaic spectrum splitting

Shelby D. Vorndran, Silvana Ayala, Yuechen Wu, Juan M. Russo, Melissa A. Zaverton, Thomas D Milster, Raymond K Kostuk

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

2 Citations (Scopus)

Abstract

A surface relief diffractive optical element (DOE) for photovoltaic (PV) spectrum splitting is fabricated and tested. The optic is designed using a modified Gerchberg-Saxton algorithm. The module consists of a DOE followed by a 3.3 cm focal length lens. Alternating side-by-side PV cells - Indium Gallium Phosphide and Silicon - are placed at the collection plane. The DOE is fabricated in photopolymer using grayscale lithography. Optical efficiency and spectral distribution are measured with a scanning spectrometer. Two-bandgap conversion efficiency of 25.4% is achieved using the fabricated DOE. Simulations show that 28.4% conversion efficiency is possible with this type of optical element, which approaches the maximum possible conversion efficiency of the two-cell combination used (32.4%).

Original languageEnglish (US)
Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)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

Diffractive optics
Diffractive optical elements
Conversion efficiency
Gallium phosphide
Photopolymers
Indium
Photovoltaic cells
Silicon
Optical devices
Lithography
Spectrometers
Lenses
Optics
Energy gap
Scanning

Keywords

  • diffractive optical element
  • Gerchberg-Saxton algorithm
  • grayscale lithography
  • spectrum splitting

ASJC Scopus subject areas

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

Cite this

Vorndran, S. D., Ayala, S., Wu, Y., Russo, J. M., Zaverton, M. A., Milster, T. D., & Kostuk, R. K. (2015). Freeform surface relief diffractive optic for photovoltaic spectrum splitting. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015 [7356158] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2015.7356158

Freeform surface relief diffractive optic for photovoltaic spectrum splitting. / Vorndran, Shelby D.; Ayala, Silvana; Wu, Yuechen; Russo, Juan M.; Zaverton, Melissa A.; Milster, Thomas D; Kostuk, Raymond K.

2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7356158.

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

Vorndran, SD, Ayala, S, Wu, Y, Russo, JM, Zaverton, MA, Milster, TD & Kostuk, RK 2015, Freeform surface relief diffractive optic for photovoltaic spectrum splitting. in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015., 7356158, 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.2015.7356158
Vorndran SD, Ayala S, Wu Y, Russo JM, Zaverton MA, Milster TD et al. Freeform surface relief diffractive optic for photovoltaic spectrum splitting. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7356158 https://doi.org/10.1109/PVSC.2015.7356158
Vorndran, Shelby D. ; Ayala, Silvana ; Wu, Yuechen ; Russo, Juan M. ; Zaverton, Melissa A. ; Milster, Thomas D ; Kostuk, Raymond K. / Freeform surface relief diffractive optic for photovoltaic spectrum splitting. 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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abstract = "A surface relief diffractive optical element (DOE) for photovoltaic (PV) spectrum splitting is fabricated and tested. The optic is designed using a modified Gerchberg-Saxton algorithm. The module consists of a DOE followed by a 3.3 cm focal length lens. Alternating side-by-side PV cells - Indium Gallium Phosphide and Silicon - are placed at the collection plane. The DOE is fabricated in photopolymer using grayscale lithography. Optical efficiency and spectral distribution are measured with a scanning spectrometer. Two-bandgap conversion efficiency of 25.4{\%} is achieved using the fabricated DOE. Simulations show that 28.4{\%} conversion efficiency is possible with this type of optical element, which approaches the maximum possible conversion efficiency of the two-cell combination used (32.4{\%}).",
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