2013 · 40 citations · 3 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsOptical MaterialsPhotonicsLuminescent MaterialsMaterial EfficiencyOptoelectronic MaterialsAbsorber MaterialsLight-absorbing LayersLuminescence LifetimePhotoluminescent Materials
Photoluminescence (PL) lifetime of 36 ns on Cu <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> ZnSnS <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> absorber was achieved by optimizing absorber formation. The high quality absorber enabled us to achieve 9.2% efficiency Cu <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> ZnSnS <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> submodule. Comparison between the PL lifetime and atomic composition showed lower Cu/Sn ratio resulted in longer lifetime. The lower Cu/Sn ratio made bandgap higher and voltage deficit lower. The PL intensity mapping accelerated the quality clarification of the various absorbers and contributed to the achievement of high efficiency Cu <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> ZnSnS <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> submodules.
3
Co-evaporated Cu2ZnSnSe4 films and devices
Ingrid Repins, Carolyn Beall, Nirav Vora et al. · Solar Energy Materials and Solar Cells · 2012 · 602 citations
Natural Sciences, Materials Engineering, Materials Science +10