Influence of sulphide precursor on crystal phase of ternary I–III–VI2 semiconductors

Beloš, Milica V.; Abazović, Nadica D.; Jakovljević, Jadranka Kuljanin; Janković, Ivana; Ahrenkiel, S. P.; Mitrić, Miodrag; Čomor, Mirjana I.

doi:10.1007/s11051-013-2148-6

Cited by 8 publications

(9 citation statements)

References 40 publications

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“…It has been reported that AgInS 2 crystallizes in the tetragonal phase below 620 °C and the orthorhombic phase above 620 °C. 54 Our results follow the same tendency. But the critical temperature of the phase transition is much lower.…”

Section: Temperature-dependent Phase Transition In Ag-in-se Ncssupporting

confidence: 81%

“…S6 †). [52][53][54][55] We also attempted to synthesise In 2 Se 3 at 88 °C. However, only a gel-like product is obtained.…”

Section: Mechanism Of Ag-in-se Formationmentioning

confidence: 99%

“…The mild transformation temperature (88 °C) suggests that the energetic barrier for the reorganization of the anion sublattice from orthorhombic to tetragonal symmetry is relatively low. [52][53][54][55] Scheme 1 presents the proposed formation mechanism of Ag-In-Se NCs, which is analogous to AgInS 2 and CuInS 2 .…”

Section: Mechanism Of Ag-in-se Formationmentioning

confidence: 99%

“…It is known that numerous reaction variables, such as precursors, solvents, ligands, and reaction duration, can influence the crystal phase. [53][54][55][56][57][58] Besides, it is hard to obtain phase pure NCs at low reaction temperatures in a short period. 58 Here, the Ag/In/Se molar feed ratio is fixed at 1/1/2.…”

Section: Temperature-dependent Phase Transition In Ag-in-se Ncsmentioning

confidence: 99%

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Phosphine-free synthesis of Ag–In–Se alloy nanocrystals with visible emissions

Yao

Liu

et al. 2015

Nanoscale

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As promising heavy metal-free emitting materials, Ag-In-Se nanocrystals (NCs) are conventionally synthesized using organic phosphine agents and exhibit near-infrared emissions. In this work, we demonstrate a rapid phosphine-free approach for synthesizing Ag-In-Se alloy NCs with the emissions tunable to the visible region on the basis of the phosphine-free dissolution of Se powder. At room temperature, Se powder is reduced by dodecanethiol and dissolved in oleylamine to produce a Se precursor. The resultant Se precursor is highly active, which permits rapid synthesis at a relatively low temperature, such as at 90 °C for 150 s. By optimizing the size, structure, and composition, the photoluminescence quantum yield of the as-synthesized Ag-In-Se NCs is enhanced to up to 10%. The growth of the Ag-In-Se NCs involves composition and phase transition, which strongly depend on the reaction temperature. The Ag2Se nuclei form first, and the Ag-In-Se NCs are produced by doping In(3+) into the preformed Ag2Se nuclei. Tetragonal phase Ag-In-Se is obtained below 170 °C, while the orthorhombic phase appears over 190 °C. The potential of Ag-In-Se NCs as red emitting phosphors for lighting-emitting diodes is further demonstrated.

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Section: Temperature-dependent Phase Transition In Ag-in-se Ncssupporting

confidence: 81%

“…S6 †). [52][53][54][55] We also attempted to synthesise In 2 Se 3 at 88 °C. However, only a gel-like product is obtained.…”

Section: Mechanism Of Ag-in-se Formationmentioning

confidence: 99%

Section: Mechanism Of Ag-in-se Formationmentioning

confidence: 99%

Section: Temperature-dependent Phase Transition In Ag-in-se Ncsmentioning

confidence: 99%

See 2 more Smart Citations

Phosphine-free synthesis of Ag–In–Se alloy nanocrystals with visible emissions

Yao

Liu

et al. 2015

Nanoscale

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“…This approach was our method of choice for the synthesis of CIS and ZIS as a continuation of our previously published results. 18,19 In this paper, we have studied the influence of different organic reaction media on the crystallinity and crystal phase of the obtained materials. The importance of this dependence, as Bhirud et al 5 proposed, is crucial for the application of these materials.…”

Section: Introductionmentioning

confidence: 99%

The influence of reaction media on CdIn₂S₄ and ZnIn₂S₄ nanocrystallite formation and growth of mesocrystal structures

et al. 2015

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Hot-injection method for synthesis of CdIn2S4 in three different compositions of organic media/solvents was studied. Nanosized CdIn2S4 is successfully synthesized in oleic acid/oleylamine mixture of complexing/capping agents. Obtained mesocrystals of 20-30 nm in diameter are self-organized in marigold-like structures. Estimated band-gap of synthesized semiconductor is far in visible spectral region and has a value of 2.1eV. Potential of band edges is calculated using empirical equation. As-prepared material was successfully transferred from organic to aqueous media by using 2mercaptoethanol in surface ligand exchange process. Using similar synthetic procedure, ZnIn2S4 synthesis was performed. Obtained materials are characterized using UV/Vis spectroscopy, XRD and TEM. Formation and growth mechanism of synthesized materials are proposed.

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Hydrothermal synthesis of bright and stable AgInS2 quantum dots with tunable visible emission

Chen

et al. 2018

Journal of Luminescence

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Influence of sulphide precursor on crystal phase of ternary I–III–VI2 semiconductors

Cited by 8 publications

References 40 publications

Phosphine-free synthesis of Ag–In–Se alloy nanocrystals with visible emissions

Phosphine-free synthesis of Ag–In–Se alloy nanocrystals with visible emissions

The influence of reaction media on CdIn₂S₄ and ZnIn₂S₄ nanocrystallite formation and growth of mesocrystal structures

Hydrothermal synthesis of bright and stable AgInS2 quantum dots with tunable visible emission

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Influence of sulphide precursor on crystal phase of ternary I–III–VI2 semiconductors

Cited by 8 publications

References 40 publications

Phosphine-free synthesis of Ag–In–Se alloy nanocrystals with visible emissions

Phosphine-free synthesis of Ag–In–Se alloy nanocrystals with visible emissions

The influence of reaction media on CdIn2S4 and ZnIn2S4 nanocrystallite formation and growth of mesocrystal structures

Hydrothermal synthesis of bright and stable AgInS2 quantum dots with tunable visible emission

Contact Info

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The influence of reaction media on CdIn₂S₄ and ZnIn₂S₄ nanocrystallite formation and growth of mesocrystal structures