First-principle prediction of single-carrier avalanche multiplication in chalcopyrite semiconductors

Rubel, Oleg; Izadi-Darbandi, Ali

doi:10.1063/1.4807650

Cited by 2 publications

(1 citation statement)

References 82 publications

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“…In fact, the substitution of In 3+ with Ga 3+ in CuInS 2 brings Ga 4s states to its conduction band. Since the Ga 4s and S 3p states are somewhat higher in energy, − the conduction band of CuIn x Ga 1– x S 2 shifts to higher energies, and accordingly, their band gap increases. Also the valence-band offset is small because the valence band is primarily a bonding anion p state, and as a result the valence band offset should be small.…”

Section: Resultsmentioning

confidence: 99%

Structural and Optical Study of Ga³⁺ Substitution in CuInS₂ Nanoparticles Synthesized by a One-Pot Facile Method

et al. 2014

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A one-pot method was used to synthesize CuIn x Ga 1−x S 2 nanoparticles by substituting In 3+ with Ga 3+ . The samples with composition of gallium ranging from 0% to 100% were synthesized by solving copper chloride, indium trichloride, gallium acetylacetonate, and thiourea as precursors in 1-octadecene, oleylamine, and oleic acid as noncoordinating, coordinating, and capping agent solvents, respectively. Depending on the chemical composition and synthesis conditions, the morphology of the as-synthesized nanoparticles obtained was trigonal, semitrigonal, hexagonal, and quasispherical. X-ray photoelectron spectroscopy and X-ray diffraction confirmed that Ga 3+ substituted In 3+ without any segregation over a wide range. The as-synthesized CuIn x Ga 1−x S 2 nanoparticles showed narrow size distribution across the entire composition range (x = 0−1) and band gap tuned in the range from 1.44 to 2.28 eV. The morphology, structure, and optical properties of the synthesized nanoparticles were characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), UV− visible (UV−vis) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The mechanism of complex formation up to nanoparticle synthesis was also discussed.

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Section: Resultsmentioning

confidence: 99%

Structural and Optical Study of Ga³⁺ Substitution in CuInS₂ Nanoparticles Synthesized by a One-Pot Facile Method

et al. 2014

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Structural, electronic, optical and thermal properties of CuXTe₂ (X=Al, Ga, In) compounds: An ab-initio study

Mahdjoubi

Megdoud

Tairi

et al. 2019

Int. J. Mod. Phys. B

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First-principles calculations of the structural, electronic, optical and thermal properties of chalcopyrite CuXTe2 (X[Formula: see text]=[Formula: see text]Al, Ga, In) have been performed within density functional theory using the full-potential linearized augmented plane wave (FP-LAPW) method, by employing for the exchange and correlation potential the approximations WC-GGA and mBJ-GGA. The effect of X cations replacement on the structural, electronic band structure, density of states and optical properties were highlighted and explained. Our results are in good agreement with the previous theoretical and experimental data. As far as we know, for the first time we find the effects of temperature and pressure on thermal parameters of CuAlTe2 and CuGaTe2 compounds. Thermal properties are very useful for optimizing crystal growth, and predict photovoltaic applications on extreme thermodynamic conditions.

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First-principle prediction of single-carrier avalanche multiplication in chalcopyrite semiconductors

Cited by 2 publications

References 82 publications

Structural and Optical Study of Ga³⁺ Substitution in CuInS₂ Nanoparticles Synthesized by a One-Pot Facile Method

Structural and Optical Study of Ga³⁺ Substitution in CuInS₂ Nanoparticles Synthesized by a One-Pot Facile Method

Structural, electronic, optical and thermal properties of CuXTe₂ (X=Al, Ga, In) compounds: An ab-initio study

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First-principle prediction of single-carrier avalanche multiplication in chalcopyrite semiconductors

Cited by 2 publications

References 82 publications

Structural and Optical Study of Ga3+ Substitution in CuInS2 Nanoparticles Synthesized by a One-Pot Facile Method

Structural and Optical Study of Ga3+ Substitution in CuInS2 Nanoparticles Synthesized by a One-Pot Facile Method

Structural, electronic, optical and thermal properties of CuXTe2 (X=Al, Ga, In) compounds: An ab-initio study

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Structural and Optical Study of Ga³⁺ Substitution in CuInS₂ Nanoparticles Synthesized by a One-Pot Facile Method

Structural and Optical Study of Ga³⁺ Substitution in CuInS₂ Nanoparticles Synthesized by a One-Pot Facile Method

Structural, electronic, optical and thermal properties of CuXTe₂ (X=Al, Ga, In) compounds: An ab-initio study