необходимы такие работы:
1. Near-Infrared Photoluminescence and Electroluminescence of Neodymium(III), Erbium(III), and Ytterbium(III) Complexes
Yuichiro Kawamura, Yuji Wada and Shozo Yanagida
Japanese Journal of Applied Physics V.40 (2001) pp. 350-356
- DOI:
http://dx.doi.org/10.1143/JJAP.40.350
Noriyuki Takada, Tetsuo Tsutsui and Shogo Saito
Japanese Journal of Applied Physics V.33 (1994) pp. L863-L866
- DOI:
http://dx.doi.org/10.1143/JJAP.33.L863