CdS nanoparticles doped with Mn were synthesized by chemical precipitation using varying concentrations of Mn at Cd_1-xMn_xS, where (x) = 0.00, 0.03, 0.05, and 0.07. The samples were examined using scanning electron microscopy (SEM), energy dispersive X-ray techniques (EDX), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, dielectric properties, and AC conductivity measurements. SEM micrograph shows that pure CdS nanomaterial has agglomerates primarily composed of nanoparticles, whereas the sample with a concentration of 0.03 contains smaller particles. In response to the phonon confinement effect, The Raman spectra of CdS nanoparticles exhibited peaks at 303 cm⁻¹ and 603 cm⁻¹. In contrast, the Raman spectra of Mn:CdS nanocomposites displayed a prominent fundamental mode at 301 cm⁻¹ and a less pronounced overtone mode at 601 cm⁻¹. The dielectric properties and the AC conductivity of CdS have been investigated over a wide frequency range of 0.1 Hz to 10 MHz and at a variety of temperatures ranging from 298 to 423K. The real and imaginary parts of the complex dielectric constant (εʹ, εʹʹ), the electric modulus, and AC conductivity of CdS were found to depend on Mn content at different temperatures.

_{使用不同浓度的 Mn（Cd 1-x} Mn _x S ）通过化学沉淀合成了掺杂 Mn 的 CdS 纳米颗粒，其中 (x) = 0.00、0.03、0.05 和 0.07。使用扫描电子显微镜 (SEM)、能量色散 X 射线技术 (EDX)、傅里叶变换红外光谱 (FTIR)、拉曼光谱、介电性能和交流电导率测量对样品进行检查。 SEM 显微照片显示，纯 CdS 纳米材料具有主要由纳米颗粒组成的团聚体，而浓度为 0.03 的样品含有更小的颗粒。响应于声子限制效应，CdS纳米颗粒的拉曼光谱在303 cm ^-1和603 cm ^-1处表现出峰值。相比之下，Mn:CdS纳米复合材料的拉曼光谱在301 cm ^{-1处显示出显着的基模，在601 cm -1}处显示出不太明显的泛音模式。 CdS 的介电性能和交流电导率已在 0.1 Hz 至 10 MHz 的宽频率范围和 298 至 423K 的各种温度下进行了研究。发现 CdS 的复介电常数 (εʹ, εʹʹ) 的实部和虚部、电模量和交流电导率取决于不同温度下的 Mn 含量。