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Synthesis and characterization of silver doped ZnO nanoparticles

机译：银掺杂ZnO纳米粒子的合成与表征

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Nanocrystals of undoped and silver doped zinc oxide (Zn1-x Ag x O (where x = 0.00 to 0.05) were synthesized by coprecipitation method. Crystalline phases and optical absorption of prepared samples were determined by X-ray diffraction and UV-visible spectrophotometer. The average particles size was determined from X-ray line broadening. X-ray analyses reveals that Ag doped ZnO crystallizes in hexagonal wurtzite structure. The incorporation of Ag+ in the place of Zn2+ provoked an increase in the size of nanocrystals as compared to undoped or pure ZnO. Optical absorption measurement indicates red shift in the absorption band edge upon Ag doping. The band gap values of as prepared undoped and doped with silver samples are found to decrease with increase in temperature from 300 to 800 oC.
机译：通过共沉淀法合成了无掺杂和银掺杂的氧化锌（Zn1-x Ag x O，其中x = 0.00-0.05）的纳米晶体，并通过X射线衍射和紫外可见分光光度计测定了所制备样品的晶相和光吸收。由X射线线展宽确定平均粒径，X射线分析表明，Ag掺杂的ZnO以六方纤锌矿结构结晶，与未掺杂或未掺杂相比，Ag +代替Zn2 +引起纳米晶体尺寸的增加。纯的ZnO，光吸收测量表明在掺杂Ag后吸收带边缘出现红移，发现未掺杂和掺杂银样品时的带隙值随温度从300升高到800 oC而减小。

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