Luminescence from Poly-Si Films and its Application to Study Passivating-Contact Solar Cells

Harvey Guthrey, Mowafak Al-Jassim, H. Nguyen, T. Truong, D. Yan, C. Samundsett, R. Basnet, M. Tebyetekerwa, Z. Li, L. Li, F. Kremer, A. Cuevas, D. Macdonald

Research output: Contribution to conferencePaperpeer-review

1 Scopus Citations


In recent years, polycrystalline silicon (poly-Si) based passivating-contact solar cells have received tremendous attention from the solar research community due to its excellent surface passivation and high carrier conductivity. However, the poly-Si films are not transparent to all wavelengths of the solar spectrum. There is often some parasitic absorption in these films. From a different standpoint, as they absorb some light, they can luminesce. This phenomenon provides us with unique opportunities to investigate optoelectronic properties of the films in a fast, contactless, and nondestructive manner. In this work, we report the luminescence phenomenon from poly-Si films used in passivating-contact solar cells. We then utilize this phenomenon to report a range of applications for solar cells including studies of carrier transport behaviors and hydrogenation inside the films.

Original languageAmerican English
Number of pages4
StatePublished - Jun 2019
Event46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States
Duration: 16 Jun 201921 Jun 2019


Conference46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

NREL Publication Number

  • NREL/CP-5K00-76326


  • hydrogenation
  • luminescence
  • passivating contact
  • poly silicon
  • solar cells


Dive into the research topics of 'Luminescence from Poly-Si Films and its Application to Study Passivating-Contact Solar Cells'. Together they form a unique fingerprint.

Cite this