Luminescent solar concentration with semiconductor nanorods and transfer-printed micro-silicon solar cells

Noah D. Bronstein, Lanfang Li, Lu Xu, Yuan Yao, Vivian E. Ferry, A. Paul Alivisatos, Ralph G. Nuzzo

Research output: Contribution to journalArticlepeer-review

Abstract

We utilize CdSe/CdS seeded nanorods as a tunable lumophore for luminescent concentration. Transfer-printed, ultrathin crystalline Si solar cells are embedded directly into the luminescent concentrator, allowing the study of luminescent concentrators with an area over 5000 times the area of the solar cell. By increasing the size of the CdS rod with respect to the luminescent CdSe seed, the reabsorption of propagating photons is dramatically reduced. At long luminescence propagation distances, this reduced reabsorption can overcome the diminished quantum yield inherent to the larger semiconductor structures, which is studied with lifetime spectroscopy. A Monte Carlo ray tracing model is developed to explain the performance of the luminescent concentrator and is then used as a design tool to determine the effect of luminescence trapping on the concentration of light using both CdSe/CdS nanorods and a model organic dye. We design an efficient luminescence trapping structure that should allow the luminescent concentrator based on CdSe/CdS nanorods to operate in the high-concentration regime.

Original languageEnglish (US)
Pages (from-to)44-53
Number of pages10
JournalACS Nano
Volume8
Issue number1
DOIs
StatePublished - Jan 28 2014

Keywords

  • light trapping
  • luminescent concentration
  • micro-silicon
  • nanorod
  • photovoltaic
  • quantum dot
  • transfer printing

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Luminescent solar concentration with semiconductor nanorods and transfer-printed micro-silicon solar cells'. Together they form a unique fingerprint.

Cite this