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Combined up conversion, down conversion and down shifting photo-luminescence of low cost erbium–ytterbium co-doped porous silicon produced by stain etching

Materials SciencePhotonicsElectronic DevicesEngineeringPhotoluminescenceStain EtchingOptical PropertiesOptoelectronic MaterialsApplied PhysicsOptoelectronic DevicesLuminescence PropertyOptoelectronics