浓度淬灭（concentration quenching）指当激活离子浓度较大时，中心间的距离小于临界距离，它们就会产生级联能量传递，即从一个中心传递到下一个中心，再到下一个中心·.....（发生能量迁移）直到最后进入一个猝灭中心，导致发光的淬灭。
高猝灭浓度 high quenching concentration
The host-crystal structure allows high doping concentration (0.5-10at. %) without considerable concentration quenching.
该晶体可掺入较高浓度的Yb离子(0.5％—10％)，且不存在浓度猝灭。
参考来源 - Yb://KGd(WOThe copolymers and PC were blended to prepare polymer alloys, of which no concentration quenching of fluorescence emission was observed.
发现聚合物合金的荧光强度没有出现浓度猝灭现象。 这为功能材料的制备提供了良好的材料。
参考来源 - 键合型稀土高分子发光材料的制备与性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
也给出了辐射和无辐射跃迁几率对温度的关系以及浓度猝灭和温度猝灭曲线。
The dependence of radiative and nonradiative transition probability on the temperature is discussed, and the curve of concentration quench and temperature quench is given.
有机分子之间及有机分子与基质之间的各种相互作用，如激发态反应、二聚作用、交叉弛豫作用等，是引起有机染料浓度猝灭的主要原因。
The concentration quenching of organic dyes is mainly induced by the organic molecular interactions, such as formation of excimer and dimer, intercrossing relaxation, etc.
在正电性纳米银上，当分子的浓度较大时观察到荧光猝灭，当分子的浓度较小时观察到荧光增强。
On PCS, the fluorescence of RhB is enhanced when the concentration is low, whilst when the concentration is high the fluorescence of RhB is quenched.
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