Phase-selective pyrolysis and Pr3+ luminescence in a YF3-Y2O3 system from a single-source precursor
Phase-selective pyrolysis and Pr3+ luminescence in a YF3-Y2O3 system from a single-source precursor
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DOI：
10.1111/j.1551-2916.2004.01659.x
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发表时间：
2004-09-01
影响因子：
3.9
通讯作者：
Kimura, T
中科院分区：
文献类型：
--
作者：
Fujihara, S;Koji, S;Kimura, T
以单源三氟乙酸酯为前驱体，在400℃~900℃的空气中热解，在石英玻璃衬底上制备了Pr3+掺杂的YF3(正交相)、YO0.80F1.40(正交相)、YOF(菱面体)和Y2O3(立方相)薄膜。通过控制加热温度和时间，实现了相选择沉积。将前驱体首先形成的YF3转变为YO0.80F1.40、YOF和Y2O3，用紫外光激发法研究了Pr3+掺杂薄膜的光致发光性能。通过有效的电荷转移(O2--Pr3+)激发，在700℃沉积的YOF：Pr3+薄膜中观察到了强烈的绿色光致发光。
Pr3+-doped YF3 (orthorhombic), YO0.80F1.40 (orthorhombic), YOF (rhombohedral), and Y2O3 (cubic) films were synthesized on quartz-glass substrates through pyrolysis of a single-source trifluoroacetate precursor at temperatures between 400degrees and 900degreesC in air. Phase-selective deposition was achieved by controlling heating temperature and time. YF3, which formed first from the precursor, was transformed to YO0.80F1.40, YOF, and Y2O3, Photoluminescent properties of Pr3+-doped films were examined using ultraviolet excitation. An intense green photoluminescence was observed in the YOF:Pr3+ film, which was deposited at 700degreesC, through an efficient charge transfer (O2--Pr3+) excitation.