Ammonium Dihydrogen Phosphate (ADP) crystals have a wide range of applications in integrated and nonlinear optics. Amino acids having significant properties like molecular chirality, zwitter ionic nature, etc. attracted many researchers to dope them in various NLO crystals. In the present study, pure and different weight percentage L-serine doped ADP crystals were grown by slow solvent evaporation technique at room temperature. The A.C. electrical study was carried out for palletized samples at room temperature. The Nyquist plot showed two semi circles for pure ADP indicated the effect of grain and grain boundary, whereas the doped ADP samples exhibited the single semi circle suggesting the effect of grain. The values resistance and capacitance for grain and grain boundary were calculated. The effect of doping was clearly seen in the grain capacitance and resistance values. The dielectric constant and dielectric loss decreased with increase in frequency for all samples. The Jonscher power law was applied for A.C. conductivity for pure and doped ADP samples. The imaginary part of modulus and impedance versus frequency were drawn and the value of stretch exponent (β) was calculated for all the samples.
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机译:磷酸二氢铵(ADP)晶体在集成和非线性光学中具有广泛的应用。具有显着性质的氨基酸如分子性肾,Zwitter离子性质等吸引了许多研究人员以各种NLO晶体涂给它们。在本研究中,通过在室温下缓慢溶剂蒸发技术生长纯净和不同的重量百分比L-丝氨酸掺杂ADP晶体。 A.C.电气研究在室温下进行托空间样品进行。奈奎斯特图显示了纯ADP的两个半圈表明晶粒和晶界的效果,而掺杂的ADP样品表现出谷物的效果。计算晶粒和晶界的值电阻和电容。在晶粒电容和电阻值中清楚地看到了掺杂的效果。随着所有样品的频率增加,介电常数和介电损耗降低。 Jonscher Power Law用于A.C.纯和掺杂ADP样品的电导率。模量和阻抗与频率的虚部进行了绘制,并且为所有样品计算了拉伸指数(β)的值。
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