Parametric optimization of mechanochemical process for synthesis of Cu(In, Ga)0.5Se2 nanoparticles

Rohini, M.; Reyes, Patricia Román; Velumani, S.; Latha, M. S.; Oza, Goldie; Becerril‐Juarez, Ignacio Guadalupe; Asomoza, R.

doi:10.1016/j.mssp.2015.02.046

Cited by 22 publications

(3 citation statements)

References 27 publications

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“…So far, several methods have been reported to synthesize CIGS/CIGSe powder, such as mechanochemical, 20 thermal decomposition, 21 solvothermal, 22 and hot-injection. 14,15 Among them, hot-injection has widely been used to produce CIGS/ CIGSe powder with pure phase and homogenous composition.…”

Section: Introductionmentioning

confidence: 99%

Solution based synthesis of Cu(In,Ga)Se₂ microcrystals and thin films

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Solution based synthesis of Cu(In,Ga)Se₂ microcrystals and thin films

et al. 2019

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“…To overcome this shortcoming, fabrication of the CIGS PVs directly from CIGS NPs would eliminate the need for the selenization step, thus lowering the environmental impact of the solar cell production. In this context, the synthesis of CIGS NPs has attracted considerable interest, and reports based on hot-injection [10,11], heat-up [12,13], solvothermal [14,15], hydrothermal [16,17], or mechanochemical [18,19] methods have appeared, usually delivering crystalline and phase-pure CIGS NPs [20]. Notably, most of the synthesis protocols, regardless of the method employed [21,22], are severely limited to the preparation of CIGS NPs with common tetragonal chalcopyrite-type structure (space group I42d), the most thermodynamically stable phase at room temperature [21,22].…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se2 Nanoparticles for Screen Printing Application

et al. 2021

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During the last few decades, the interest over chalcopyrite and related photovoltaics has been growing due the outstanding structural and electrical properties of the thin-film Cu(In,Ga)Se2 photoabsorber. More recently, thin film deposition through solution processing has gained increasing attention from the industry, due to the potential low-cost and high-throughput production. To this end, the elimination of the selenization procedure in the synthesis of Cu(In,Ga)Se2 nanoparticles with following dispersion into ink formulations for printing/coating deposition processes are of high relevance. However, most of the reported syntheses procedures give access to tetragonal chalcopyrite Cu(In,Ga)Se2 nanoparticles, whereas methods to obtain other structures are scarce. Herein, we report a large-scale synthesis of high-quality Cu(In,Ga)Se2 nanoparticles with wurtzite hexagonal structure, with sizes of 10–70 nm, wide absorption in visible to near-infrared regions, and [Cu]/[In + Ga] ≈ 0.8 and [Ga]/[Ga + In] ≈ 0.3 metal ratios. The inclusion of the synthesized NPs into a water-based ink formulation for screen printing deposition results in thin films with homogenous thickness of ≈4.5 µm, paving the way towards environmentally friendly roll-to-roll production of photovoltaic systems.

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“…There are various methods for manufacturing CuIn 1− x Ga x Se 2 nanocrystals, such as hot injection synthesis [ 5 , 18 ], the solvothermal route [ 4 ], thermal decomposition [ 19 , 20 , 21 ], the modified polyol route [ 22 ], and the mechanochemical process [ 23 ]. Cui and co-workers synthesized CuIn 1− x Ga x Se 2 nanocrystals by heating metal chlorides in a selenium solution containing oleylamine and glycerol [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of CuIn1−xGaxSe2 Semiconductor Nanocrystals

2020

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In this paper, the synthesis and characterization of CuIn1−xGaxSe2 (0 £ x £ 1) nanocrystals are reported with the influences of x value on the structural, morphological, and optical properties of the nanocrystals. The X-ray diffraction (XRD) results showed that the nanocrystals were of chalcopyrite structure with particle size in the range of 11.5–17.4 nm. Their lattice constants decreased with increasing Ga content. Thus, the x value of the CuIn1−xGaxSe2 nanocrystals was estimated by Vegard’s law. Transmission electron microscopy (TEM) analysis revealed that the average particle size of the nanocrystals agreed with the results of XRD. Well-defined lattice fringes were shown in the TEM images. An analysis of the absorption spectra indicated that the band gap energy of these CuIn1−xGaxSe2 nanocrystals was tuned from 1.11 to 1.72 eV by varying the x value from 0 to 1. The Raman spectra indicated that the A1 optical vibrational mode of the nanocrystals gradually shifted to higher wavenumber with increasing x value. A simple theoretical equation for the A1 mode frequency was proposed. The plot of this equation showed the same trend as the experimental data.

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Parametric optimization of mechanochemical process for synthesis of Cu(In, Ga)0.5Se2 nanoparticles

Cited by 22 publications

References 27 publications

Solution based synthesis of Cu(In,Ga)Se₂ microcrystals and thin films

Solution based synthesis of Cu(In,Ga)Se₂ microcrystals and thin films

Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se2 Nanoparticles for Screen Printing Application

Synthesis and Characterization of CuIn1−xGaxSe2 Semiconductor Nanocrystals

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Parametric optimization of mechanochemical process for synthesis of Cu(In, Ga)0.5Se2 nanoparticles

Cited by 22 publications

References 27 publications

Solution based synthesis of Cu(In,Ga)Se2 microcrystals and thin films

Solution based synthesis of Cu(In,Ga)Se2 microcrystals and thin films

Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se2 Nanoparticles for Screen Printing Application

Synthesis and Characterization of CuIn1−xGaxSe2 Semiconductor Nanocrystals

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Solution based synthesis of Cu(In,Ga)Se₂ microcrystals and thin films

Solution based synthesis of Cu(In,Ga)Se₂ microcrystals and thin films