Abstract

A semi-analytical model is established by extending the detailed balance models to explicitly elucidate the impact of nonradiative recombination and other aspects of actual devices, including photon recycling, spontaneous emission coupling, and non-ideal absorptance and emittance. Through which many important practical design parameters for concentrated photovoltaic multijunction solar cells are taken into account, such as bandgap energy, junction number, solar concentration, and material quality expressed as Shockley-Read-Hall recombination saturation current density. The model can accurately predict subcell layer thicknesses and bandgaps as function of material quality. Novel characterization techniques for multijunction solar cells are also established to measure the external quantum efficiency and to explain the commonly encountered artifacts under practical test conditions.

Original languageEnglish (US)
Title of host publicationOptics InfoBase Conference Papers
StatePublished - 2010
EventOptics for Solar Energy, OSE 2010 - Tucson, AZ, United States
Duration: Jun 7 2010Jun 8 2010

Other

OtherOptics for Solar Energy, OSE 2010
CountryUnited States
CityTucson, AZ
Period6/7/106/8/10

Fingerprint

Analytical models
Energy gap
solar cells
Spontaneous emission
Quantum efficiency
Recycling
absorptance
Current density
Photons
recycling
emittance
spontaneous emission
artifacts
quantum efficiency
current density
saturation
photons
Multi-junction solar cells
energy

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

Cite this

A semi-analytical model and characterization techniques for concentrated photovoltaic multijunction solar cells. / Zhang, Yong-Hang; Ding, D.; Johnson, Shane; Lim, S. H.

Optics InfoBase Conference Papers. 2010.

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

Zhang, Y-H, Ding, D, Johnson, S & Lim, SH 2010, A semi-analytical model and characterization techniques for concentrated photovoltaic multijunction solar cells. in Optics InfoBase Conference Papers. Optics for Solar Energy, OSE 2010, Tucson, AZ, United States, 6/7/10.
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