TY JOUR TI THE EFFECT OF ANNEALING ON THE SPECTRAL CONVERSION OF ULTRAVIOLET RADIATION BY THE YVO4:BI3+, YB3+ PHOSPHOR TO IMPROVE THE EFFICIENCY OF SOLAR CELLS KW YVO4 KW BISMUTH KW DOWN-CONVERSION KW YTTERBIUM KW LUMINESCENCE KW ANNEALING KW SOLAR CELL KW SPECTRAL CONVERSION KW ULTRAVIOLET RADIATION KW PHOTOVOLTAICS KW PARTICLE JO Herald of Technological University AU Mityushkin, E.O. AU Solodov, A.N. AU Shmelev, A.G. AU Likerov, R.F. AU Leont'ev, A.V. AU Nurtdinova, L.A. AU Zharkov, D.K. AU Galyametdinov, Y.G. AU Nikiforov, V.G. PY 2025 IS 28 PB Kazan National Research Technological University