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首页> 外文期刊>Optical and quantum electronics >The effects of Ag~+ and Al~(3+) substitution in (Cu_(1-x)Ag_x(In_(1-x)Al_x)S_2 chalcopyrite nanoparticles synthesized by hydrothermal method: Study of microstructures and optical properties
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The effects of Ag~+ and Al~(3+) substitution in (Cu_(1-x)Ag_x(In_(1-x)Al_x)S_2 chalcopyrite nanoparticles synthesized by hydrothermal method: Study of microstructures and optical properties

机译：Ag〜+和Al〜（3+）取代的效果（Cu_（1-x）Ag_x（In_（1-x）Al_x）S_2氯偶纳米粒子通过水热法合成：微观结构和光学性质的研究

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In this research, Ag~+ and Al~(3+) doped CuInS_2 (CIS) nanoparticles were synthesized by a low-cost and non-vacuum hydrothermal method. The CuInS_2 nanoparticles were synthesized by the stoichiometric ratio of (1Cu: 1In: 2S) using the hydrothermal method at 180°C and for 16, 18 and 20 h. Afterward, Ag~+ and Al~(3+) ions were doped with non-stoichiomet-ric composition of (Cu_(1-x)Ag_x)InS_2, Cu(In_xAl_x)S_2 (x = 0.1, 0.2, and 0.3), and (Cu_(1-x)Ag_x) (In_(1-x)Al_x)S_2 (x = 0.1). The phase evolution, microstructural, and optical properties have also been studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), UV-Vis spectroscopy techniques. The XRD results showed that the sample was prepared by the hydrothermal route at 180°C for 20 h was single-phase and no impurity phase was detected. However, some minor impurity phases (CuS and Cu_9S_5) were detected in the samples were synthesized at 180°C in 16 h and 18 h. The results show that the crystallite size of the synthesized nanoparticles of CIS at 16, 18, and 20 h are 26, 29, and 32 nm, respectively. The lattice parameters for the sample synthesized in 20 h were calculated to be 5.52 A (a) and 11.11 A (c). The FE-SEM micrographs showed that the pure CIS nanoparticles have flower-shaped morphology and the type and concentration of used dopants affect the morphology of the nanoparticles. The bandgap of single-phase CIS synthesized nanoparticles was 1.5 eV. However, the bandgap of (Cu_(0.9)Ag_(0.1))InS_2 and Cu(In_(0.9)Al_(0.1))S_2 was 1.4 eV and 1.70, respectively. The bandgap of (Cu_(0.9)Ag_(0.1)) (In_(0.9)Al_(0.1)) S_2 was 2 eV.
机译：在该研究中，通过低成本和非真空水热法合成Ag〜+和Al〜（3+）掺杂的Cuins_2（CIS）纳米颗粒。通过在180℃和16,18和20小时的水热法，通过（1CU：1IN：2S）的化学计量比（1CU：1IN：2S）的化学计量比合成CuIns_2纳米颗粒。之后，Ag〜+和Al〜（3+）离子掺杂（Cu_（1-x）Ag_x）Ins_2，Cu（In_Al_x）S_2（x = 0.1,0.2和0.3）， （CU_（1-x）ag_x）（in_（1-x）al_x）s_2（x = 0.1）。还通过X射线衍射（XRD），场发射扫描电子显微镜（Fe-SEM），UV-Vis光谱技术研究了相蒸馏，微观结构和光学性质。 XRD结果表明，样品通过在180℃下的水热途径制备20小时，单相，未检测到杂质相。然而，在样品中检测到一些次要的杂质相（CU和CU_9S_5）在16小时和18小时的180℃下合成。结果表明，分别为16,18和20小时的CIS合成纳米颗粒的微晶尺寸分别为26,29和32nm。将20小时合成的样品的晶格参数计算为5.52A（a）和11.11a（c）。 Fe-SEM显微照片显示纯CIS纳米颗粒具有花状形态，使用的掺杂剂的类型和浓度影响纳米颗粒的形态。单相CI合成纳米颗粒的带隙为1.5eV。但是，（CU_（0.9）AG_（0.1））INS_2和CU（IN_（0.9）AL_（0.1））S_2分别为1.4eV和1.70的带隙。 （CU_（0.9）AG_（0.1））的带隙（IN_（0.9）AL_（0.1））S_2为2eV。

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