用溶胶-凝胶法获得多孔SiO2载体,浸泡合成法得到不同复合量的CdS/SiO2块材介孔组装体系.研究了复合量、气氛条件及退火温度对其光吸收特性的影响,发现吸收边随复合量增加往长波方向移动;在氮气和空气中退火时,随退火温度升高前者表现为红移而后者表现为蓝移,这归属于量子尺寸效应.
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