摘要
在ZnS和ZnS:Cu磷光体微晶中,共掺杂痕量的Mn^(2+),通过对ZnS晶体中的Mn^(2+)离子的电子自旋共振(下面简写为ESR)超精细谱的监测,可以研究ZnS和ZnS:Cu微晶随制备时的煅烧温度升高引起的从立方相(β相)到六角相(α相)的相变。痕量Mn^(2+)是一种灵敏的结构相变顺磁探针。
When a trace of impurity Mn2+ is a codopant in ZnS crystallite and ZnS:Cu phosphor, the hyper-fine structure spectra of the electron spin resonance of Mn2+ ions in the crystallites are monitored. With these spectra we can study the phase transition from cubic (j3 phase) to sixfold (a phase) lattice of ZnS and ZnS:Cu prepared by different calcining temperature. Therefore the trace of Mn2+ is a sensitive paramagnetic probe for structure transformation.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1990年第1期61-68,共8页
Chinese Journal of Luminescence
