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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3209
Title: Energy transfer from Eu3+ → Ho3+ in calibo glass
Authors: Tripathi H.B.
Kandpal H.C.
Agarwal A.K.
Belwal R.
Published in: Chemical Physics Letters
Abstract: Study of energy transfer from optically excited Eu3+ → Ho3+ has been carried out in calibo glass. Probabilities and efficiencies of energy transfer from Eu3+ → Ho3+ have been calculated from the life time and emission intensity of Eu3+ + Ho3+. At low acceptor concentrations Pda varies linearly with Ca showing migration of energy among donors. At high acceptor concentrations Pda depends linearly on (Ca + Cd)2, which is inconsistent with Fong and Diestler's theory of dipole-dipole mechanism of energy transfer. At low temperature emission intensity and life time increases, decreasing probability (Pda) and efficiency (ηT) suggesting at room temperature the energy is transferred to the lattice by donor lowering life time and intensity. At high temperature no emission from higher levels of the donor is obtained suggesting blurred energy levels in the glassy matrix. © 1978.
Citation: Chemical Physics Letters (1978), 57(1): 50-53
URI: https://doi.org/10.1016/0009-2614(78)80349-2
http://repository.iitr.ac.in/handle/123456789/3209
Issue Date: 1978
ISSN: 92614
Author Scopus IDs: 7005705857
7003383488
57198123728
24545235300
Author Affiliations: Tripathi, H.B., Department of Physics, D.S.B. University College, Naini Tal, India
Kandpal, H.C., Department of Physics, D.S.B. University College, Naini Tal, India
Agarwal, A.K., Department of Physics, D.S.B. University College, Naini Tal, India
Belwal, R., Department of Physics, D.S.B. University College, Naini Tal, India
Funding Details: Two of us (XC. Kandpal and A.K. Agarwal) are grateful to C.S.I.R., New Delhi for financial assistance.
Corresponding Author: Agarwal, A.K.; Department of Physics, D.S.B. University College, Naini Tal, India
Appears in Collections:Journal Publications [CY]

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