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quantum yield 【物理學】量子產量。

quaquaversal

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 對納米材料表面修飾后發光性質變化的研究有助于更加深入地認識表面和表面態的實質及其對發光的影響機制,為進一步控制納米材料的表面,提高發光效率,創制理想高效的納米發光材料提供基礎的理論的指導,使得納米發光材料得到更加廣泛的應用。

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 + )表面修飾在納米顆粒表面形成了zns殼層,鈍化了納米顆粒的表面,消除了表面猝滅中心,阻塞了通過表面猝滅中心進行無輻射躍遷的通道,從而使得發光強度增加,衰減變慢,量子效率提高。

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 處理100天以后,二、三年生苗木處理多酚氧化酶的活性分別是對照的5 . 7551 、 2 . 1989倍;它們的過氧化物酶活性則是對照的4 . 8484 、 15 . 6403倍。

Quantum yields for photoinitiation and photodecomposition are also low with mn 采用mn時,光引發和光分解的量子產率也很低。

Fluorescence quantum yield 熒光量子產率