The quantum yield (Φ) of a radiation-induced process is the number of times a specific event occurs per photon absorbed by the system. The "event" is typically a kind of chemical reaction.
例句与用法
1.
Quantum yields for photoinitiation and photodecomposition are also low with mn . 采用Mn时，光引发和光分解的量子产率也很低。
2.
Fluorescence quantum yield 荧光量子产率
3.
Quantum yields for photoinitiation and photodecomposition are also low with mn 采用mn时，光引发和光分解的量子产率也很低。
4.
The value of carotid / total chlorophyll of treatment 1 . 4031 , 1 . 9080 , 1 . 0971 times that of the control respectively . s02 decreased the produce of apparent photosynthetic electron transport ( etr ) , over photochemical quantum yield ( yield ) , non - photochemical quenching ( q 处理100天以后，二、三年生苗木处理多酚氧化酶的活性分别是对照的5 . 7551 、 2 . 1989倍；它们的过氧化物酶活性则是对照的4 . 8484 、 15 . 6403倍。
5.
The activation effect of zn2 + modification , including enhancement of emission intensity , slowing of luminescence decay and increasing of quantum yields , results from the formation of zns shell outside the nanoparticles , which is passivating the surface of nanoparticles , eliminating the surface quenching centers , so as to block the nonradiative transition pathways through these kind of quenching centers Zn ~ ( 2 + )表面修饰在纳米颗粒表面形成了zns壳层，钝化了纳米颗粒的表面，消除了表面猝灭中心，阻塞了通过表面猝灭中心进行无辐射跃迁的通道，从而使得发光强度增加，衰减变慢，量子效率提高。
6.
This indicates that rich zn2 + and poor mn2 + ions in the colloidal solution of zns : mn2 + nps is the key to obtain highly efficient luminescence and highly quantum yields . the research on the properties of surface modification may be helpful to the widely application of nano - sized materials in the future 对纳米材料表面修饰后发光性质变化的研究有助于更加深入地认识表面和表面态的实质及其对发光的影响机制，为进一步控制纳米材料的表面，提高发光效率，创制理想高效的纳米发光材料提供基础的理论的指导，使得纳米发光材料得到更加广泛的应用。
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