Dielectric Bragg back reflecting mirror in a-Si:H/c-Si heterostructure solar cell

Mario Tucci, Luca Serenelli, Enrico Salza, Giampiero De Cesare, Domenico Caputo, Matteo Ceccarelli, Pierino Martufi

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In this work we present the design and fabrication of a Bragg reflector, formed on the rear side of an amorphous/crystalline silicon(a-Si/c-Si)n-a-Si/i- a-Si/p-c-Si heterostructure solar cell, in order to obtain an enhancement of the optical confinement of the near-infrared wavelength. The mirror has been grown alternating several couples of amorphous silicon/silicon nitride films whose thicknesses have been optimized, to maximize the reflectance inward the c-Si wafer, using an optical simulator. The cell back contact has been ensured by an Al diffusion into the c-Si wafer promoted by Nd-YAG pulsed laser. The front cell contact has been enhanced by a chromium silicide CrSi formed on top of the n-a-Si layer. A Vocof 681 mV and 94% of internal quantum efficiency at 1000 nm have been achieved. © 2008 IEEE.
Original languageEnglish
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event2008 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD'08 - , Australia
Duration: 1 Jan 2008 → …

Conference

Conference2008 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD'08
CountryAustralia
Period1/1/08 → …

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All Science Journal Classification (ASJC) codes

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

Cite this

Tucci, M., Serenelli, L., Salza, E., De Cesare, G., Caputo, D., Ceccarelli, M., & Martufi, P. (2008). Dielectric Bragg back reflecting mirror in a-Si:H/c-Si heterostructure solar cell. Paper presented at 2008 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD'08, Australia. https://doi.org/10.1109/COMMAD.2008.4802146