Structure, composition, morphology, photoluminescence and cathodoluminescence properties of ZnGeN2 and ZnGeN2:Mn2+ for field emission displays

Zhang, Q.-H.; Wang, Jing; Yeh, Chau‐Shioung; Ke, Wei; Liu, Ru‐Shi; Tang, Jinke; Xie, Mubiao; Liang, H.; Su, Qiang

doi:10.1016/j.actamat.2010.08.038

Cited by 71 publications

(42 citation statements)

References 35 publications

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“…This precise stoichiometry occurred in 29 of the investigated crystal structures. These include the trigonal NaCrS 2 (R 3mH) superstructure [61], the tetragonal BaNiS 2 (P4=n m m Z) superstructure [62], tetragonal LiUN 2 [63], ZnGeN 2 [64] (based on the NaFeO 2 -beta structure) and the inverse-MAX BaCeN 2 [65].…”

Section: Computational Detailsmentioning

confidence: 99%

Theoretical study of phase stability, crystal and electronic structure of MeMgN2 (Me = Ti, Zr, Hf) compounds

et al. 2017

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Scandium nitride has recently gained interest as a prospective compound for thermoelectric applications due to its high Seebeck coefficient. However, ScN also has a relatively high thermal conductivity, which limits its thermoelectric efficiency and figure of merit (zT). These properties motivate a search for other semiconductor materials that share the electronic structure features of ScN, but which have a lower thermal conductivity. Thus, the focus of our study is to predict the existence and stability of such materials among inherently layered equivalent ternaries that incorporate heavier atoms for enhanced phonon scattering and to calculate their thermoelectric properties. Using density functional theory calculations, the phase stability of TiMgN 2 , ZrMgN 2 and HfMgN 2 compounds has been calculated. From the computationally predicted phase diagrams for these materials, we conclude that all three compounds are stable in these stoichiometries. The stable compounds may have one of two competing crystal structures: a monoclinic structure (LiUN 2 prototype) or a trigonal superstructure (NaCrS 2 prototype; R 3mH). The band structure for the two competing structures for each ternary is also calculated and predicts semiconducting behavior for all three compounds in the NaCrS 2 crystal structure with an indirect band gap and semiconducting behavior for ZrMgN 2 and HfMgN 2 in the monoclinic crystal structure with a direct band gap. Seebeck coefficient and power factors are also predicted, showing that all three compounds in both the NaCrS 2 and the LiUN 2 structures have large Seebeck coefficients. The predicted stability of these compounds suggests that they can be synthesized by, e.g., physical vapor deposition.

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Section: Computational Detailsmentioning

confidence: 99%

Theoretical study of phase stability, crystal and electronic structure of MeMgN2 (Me = Ti, Zr, Hf) compounds

et al. 2017

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“…Additionally, the sample D has a rough and large surface area that can improve the efficiency of light emission. Wang et al have reported on an enhanced PL from different morphologies [24][25][26][27]. Therefore, it is reasonably believed that the dependence of PL performance on the diameter of nanorods is attributed to the size effect and surface morphologies.…”

Section: Resultsmentioning

confidence: 96%

Facile synthesis and improved photoluminescence of periodic SiC nanorod arrays by SiO2 templates-assisted magnetron sputtering method

Yang

et al. 2012

Journal of Alloys and Compounds

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“…These phosphors must have excellent luminescent features so that they can be efficiently excited by the blue or near-ultraviolet LED chip and emit efficiently in blue, green, yellow, or red wavelengths. Now large interest has been focused on the Ce 3+ /Eu 2+ doped nitridosilicates and oxonitridosilicates due to their potential applications as novel phosphors in WLEDs [7][8][9][10][11][12][13][14]. The emission and absorption spectra of the Ce 3+ /Eu 2+ ion usually consist of broad bands due to transitions between the ground state of the 4f 1 /4f 7 configuration and the lower excited states (the crystal field splitting components of the 5d configuration).…”

Section: Introductionmentioning

confidence: 98%

Crystal structure and photoluminescence of (Y1−xCex)2Si3O3N4

Chen

Wang

et al. 2011

Journal of Luminescence

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Structure, composition, morphology, photoluminescence and cathodoluminescence properties of ZnGeN2 and ZnGeN2:Mn2+ for field emission displays

Cited by 71 publications

References 35 publications

Theoretical study of phase stability, crystal and electronic structure of MeMgN2 (Me = Ti, Zr, Hf) compounds

Theoretical study of phase stability, crystal and electronic structure of MeMgN2 (Me = Ti, Zr, Hf) compounds

Facile synthesis and improved photoluminescence of periodic SiC nanorod arrays by SiO2 templates-assisted magnetron sputtering method

Crystal structure and photoluminescence of (Y1−xCex)2Si3O3N4

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