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Sökning: WFRF:(Zou Z. L) > Linköpings universitet

  • Resultat 1-4 av 4
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  • Chen, X. Y., et al. (författare)
  • Application of weak ferromagnetic BiFeO3 films as the photoelectrode material under visible-light irradiation
  • 2007
  • Ingår i: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 91:2, s. 022114-
  • Tidskriftsartikel (refereegranskat)abstract
    • BiFeO3 films prepared by pulsed laser deposition on Pt/TiO2/SiO2/Si substrates were studied as photoelectrode for water splitting. Under visible-light irradiation, the photocurrent intensity of the polycrystalline BiFeO3 film was found to double that of the amorphous one in a three-electrode cell. The incident photon to current conversion efficiency for the polycrystalline BiFeO3 electrode was approximately 16% at 350 nm and 7% at 530 nm at 1.5 V (versus saturated calomel electrode). The ferromagnetism of the amorphous BiFeO3 film was an order of magnitude weaker than that of the polycrystalline one, supporting the "size effect" explanation for magnetic origin. (C) 2007 American Institute of Physics.
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  • Chen, Ziming, et al. (författare)
  • Roadmap on perovskite light-emitting diodes
  • 2024
  • Ingår i: JOURNAL OF PHYSICS-PHOTONICS. - : IOP Publishing Ltd. - 2515-7647. ; 6:3
  • Tidskriftsartikel (refereegranskat)abstract
    • In recent years, the field of metal-halide perovskite emitters has rapidly emerged as a new community in solid-state lighting. Their exceptional optoelectronic properties have contributed to the rapid rise in external quantum efficiencies (EQEs) in perovskite light-emitting diodes (PeLEDs) from <1% (in 2014) to over 30% (in 2023) across a wide range of wavelengths. However, several challenges still hinder their commercialization, including the relatively low EQEs of blue/white devices, limited EQEs in large-area devices, poor device stability, as well as the toxicity of the easily accessible lead components and the solvents used in the synthesis and processing of PeLEDs. This roadmap addresses the current and future challenges in PeLEDs across fundamental and applied research areas, by sharing the community's perspectives. This work will provide the field with practical guidelines to advance PeLED development and facilitate more rapid commercialization.
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  • Resultat 1-4 av 4

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