Calcium-doping effects on photovoltaic response and structure in multiferroic BiFeO3 ceramics | Zendy

ChiShun Tu | Zendy; C.M. Hung | Zendy; Zhenbo Xu | Zendy; V. Hugo Schmidt | Zendy; Ting Yu | Zendy; R. R. Chien | Zendy; Yiting Peng | Zendy; J. Anthoninappen | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Calcium-doping effects on photovoltaic response and structure in multiferroic BiFeO3 ceramics

Author(s) -

ChiShun Tu,

C.M. Hung,

Zhenbo Xu,

V. Hugo Schmidt,

Ting Yu,

R. R. Chien,

Yiting Peng,

J. Anthoninappen

Publication year - 2013

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4823856

Subject(s) - materials science , doping , optoelectronics , indium tin oxide , ceramic , photovoltaic effect , crystallite , heterojunction , ferroelectric ceramics , multiferroics , photovoltaic system , thin film , ferroelectricity , nanotechnology , metallurgy , electrical engineering , engineering , dielectric

Photovoltaic (PV) effects, power-conversion efficiencies, and structures have been systematically measured in (Bi1−xCax)FeO3−δ ceramics for x = 0.05, 0.10, and 0.15. The heterostructures of indium tin oxide (ITO) film/(Bi1−xCax)FeO3−δ ceramics/Au film exhibit significant PV effects under illumination of λ = 405 nm. The maximum power-conversion efficiency in the ITO/(Bi0.90Ca0.10)FeO2.95 (BFO10C)/Au can reach 0.0072%, which is larger than 0.0025% observed in the graphene/polycrystalline BFO/Pt films [Zang et al., Appl. Phys. Lett. 99, 132904 (2011)]. A theoretical model based on optically excited current in the depletion region between ITO film and Ca-doped BFO ceramics is used to describe the I-V characteristic, open-circuit voltage, and short-circuit current density as a function of illumination intensity. This work suggests that the Ca-substitution can reduce the rhombohedral distortion and stabilize the single-phase structure.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research