Cu single doped and Cu, Mn co-doped Cd_0.7Zn_0.3S nanocrystals were synthesized successfully by co-precipitation method. XRD results confirmed hexagonal structure of as prepared Cu single doped and Cu, Mn co-doped Cd_0.7Zn_0.3S samples. The lattice constants, lattice plane, d-spacing, unit cell volume, Lorentz factor and dislocation density were also determined. The SEM analysis shows aggregation and nonuniform shapes of nanoparticles. The EDX spectra indicate the presence of S, Cd, Zn, Cu, Mn along with N and O in our samples. Absorption spectra shows maximum absorption in the range 209–236 nm with a shoulder peak at 277–299 nm which confirms a blue shift in comparison to bulk spectra. The photoluminescence (PL) spectra of Cu single doped samples shows blue-green emission centered at 428 and 488 nm. In Cu, Mn co-doped samples, higher intensity in blue green region at 458 and 488 nm attributed due to the sulfur vacancy and Zn defects respectively.

通过共沉淀法成功地合成了Cu单掺杂和Cu，Mn共掺杂的Cd _0.7 Zn _0.3 S纳米晶体。XRD结果证实了所制备的Cu单掺杂和Cu，Mn共掺杂的Cd _0.7 Zn _0.3的六方结构。S个样本。还确定了晶格常数，晶格平面，d-间距，晶胞体积，洛伦兹因子和位错密度。SEM分析显示纳米颗粒的聚集和不均匀形状。EDX光谱表明样品中存在S，Cd，Zn，Cu，Mn以及N和O。吸收光谱显示最大吸收在209–236 nm范围内，肩峰在277–299 nm处，这与本体光谱相比证实了蓝移。铜单掺杂样品的光致发光（PL）光谱显示中心在428和488 nm处的蓝绿色发射光。在铜，锰共掺杂的样品中，分别在458和488 nm处的蓝绿色区域具有较高的强度，这分别归因于硫空位和Zn缺陷。