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2篇 您的检索式：作者名="K.Pushpanathan"

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		题名	作者	年代	出处	被引量
	1	Effect of pH on Crystal Size and Photoluminescence Property of ZnO Nanoparticles Prepared by Chemical Precipitation Method显示文摘The effects of pH value on crystal size and optical property of zinc oxide nanoparticles prepared by chemical precipitation method were investigated.Prepared samples have been characterized by means of X-ray diffraction,scanning electron microscopy,ultraviolet-visible spectrometer and photoluminescence spectrometer.From X-ray diffraction profile,it is found that the particle size of sample increases from 13.8 to 33 nm when the pH value of the solution was increased from 6 to 13.Microstructural study also shows that the particle size increases with pH value.Hexagonal shape of the zinc oxide nanoparticle has been confirmed by the scanning electron microscopy image.The recorded ultraviolet-visible spectrum shows excitonic absorption peaks around 381 nm.The energy gap of the prepared samples has been determined from the ultraviolet-visible absorption spectrum,effective mass model equation and Tauc's relation.It was found that the energy gap of the prepared samples decreases with increase in pH value.The recorded blue shift confirmed the quantum confinement effect in the prepared zinc oxide samples.Photoluminescence spectrum infers that the increase in pH value shifts the ultraviolet-visible emission but not the violet and green emissions.	M.Jay Chithra M.Sathya K.Pushpanathan	2015	Acta Metallurgica Sinica(English Letters)2015，28，3：	7
	2	Zn_(1-x)Cd_xO纳米颗粒中的自组装花状微结构(英文)显示文摘研究沉淀法合成Cd掺杂ZnO纳米颗粒的结构和光学特征。X射线衍射分析表明,掺杂Cd的置换不影响ZnO的基本铅锌矿型结构。随着Cd掺杂增加至4%,平均晶粒尺寸、晶格参数和单胞体积增加。采用紫外可见吸收光谱和Tauc法测定样品的能隙,能隙随Cd含量增加而减小。傅里叶变换红外光谱通过485~563 cm^(-1)峰确定Cd掺杂物。光致发光谱的强度增加也确定了Cd掺杂物。437 cm^(-1)处的宽拉曼峰表明,5%的Cd掺杂弱化了ZnO的铅锌矿型结构。场发射扫描电镜分析也证实了纳米尺寸粒子的存在,并证明了掺杂5%Cd时微结构从纳米颗粒转变成花状微结构。	R.SANTHI C.SHANTHI M.SATHYA K.PUSHPANATHAN	2017	Transactions of Nonferrous Metals Society of China2017，27，9：	0

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