Upconversion spectroscopy

84.

K.W. Krämer, D. Biner, G. Frei, H.U. Güdel, M.P. Hehlen, and S.R. Lüthi
Hexagonal sodium yttrium fluoride based green and blue emitting upconversion phosphors
Chem. Mat. 16 (2004) 1244 – 1251.

S. Fischer, J.C. Goldschmidt, P. Löper, G.H. Bauer, R. Brüggemann, K. Krämer, D. Biner, M. Hermle, and S.W. Glunz
Enhancement of silicon solar cell efficiency by upconversion: Optical and electrical characterization
J. Appl. Phys. 108 (2010) 044912, 1 - 11.

172.

J.C. Goldschmidt, S. Fischer, P. Löper, K.W. Krämer, D. Biner, M. Hermle, and S.W. Glunz
Experimental analysis of upconversion with both coherent monochromatic irradiation and broad spectrum illumination
Solar Energy Materials & Solar Cells 95 (2011) 1960 - 1963.

250.

P. Villanueva-Delgado, K.W. Krämer, and R. Valiente
Simulating energy transfer and upconversion in β‑NaYF₄: Yb³⁺, Tm³⁺
J. Phys. Chem. C 119 (2015) 23648 - 23657. DOI:10.1021/acs.jpcc.5b06770

266.

P. Villanueva Delgado, K.W. Krämer, R. Valiente, M. de Jong, and A. Meijerink
Modeling Blue to UV Upconversion in β-NaYF₄: Tm³⁺
Phys. Chem. Chem. Phys. 18 (2016) 27396 - 27404. DOI:10.1039/C6CP04347J