RT info:eu-repo/semantics/article
T1 Upconversion and cooperative luminescence in YBO3:Yb3+- Er3+
A1 Torres Betancort, Manuel Eulalio
A1 Gil de Cos,  G.
A1 Rivera López, Fernando
K1 Borate (YBO3)
K1 Yb3+-Er3+
K1 Upconversion
K1 Cooperative luminescence
AB his paper reports the frequency upconversion and cooperative luminescence in YBO3:Yb3+-Er3+ sample. After cw diode laser excitation, at 980 nm, three clear bands were observed at around 650, 545 and 484 nm, corresponding to red, green and blue emissions, respectively. The bands centred at 650 and 545 nm can be attributed to upconversion emissions from Er3+ ions. Mechanisms of energy transfer upconversion and excited-state absorption of pump radiation are proposed in order to explain these radiative transitions. The blue emission at 484 nm is analysed with the aim to elucidate if it can be attributed to cooperative luminescence from Yb3+-pairs. Finally, the color diagram is presented so as to study the color purity of the sample.
SN 2352-4928
YR 2021
FD 2021
LK http://riull.ull.es/xmlui/handle/915/34851
UL http://riull.ull.es/xmlui/handle/915/34851
LA 
DS Repositorio institucional de la Universidad de La Laguna
RD 19-nov-2024