Ammonothermal Synthesis and Optical Properties of Ternary Nitride Semiconductors Mg-IV-N2, Mn-IV-N2 and Li-IV2-N3 (IV = Si, Ge)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F18%3A43951096" target="_blank" >RIV/49777513:23640/18:43951096 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/chem.201704973" target="_blank" >http://dx.doi.org/10.1002/chem.201704973</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/chem.201704973" target="_blank" >10.1002/chem.201704973</a>
Alternative languages
Result language
angličtina
Original language name
Ammonothermal Synthesis and Optical Properties of Ternary Nitride Semiconductors Mg-IV-N2, Mn-IV-N2 and Li-IV2-N3 (IV = Si, Ge)
Original language description
Grimm–Sommerfeld analogous nitrides MgSiN2, MgGeN2, MnSiN2, MnGeN2, LiSi 2N3 and LiGe2N3 (generally classified as II-IV-N2 and I-IV2-N3) are promising semiconductor materials with great potential for application in (opto) - electronics or photovoltaics. A new synthetic approach for these nitride materials was developed using supercritical ammonia as both solvent and nitride-forming agent. Syntheses were conducted in custom-built high-pressure autoclaves with alkali metal amides LiNH2, NaNH2 or KNH2 as ammonobasic mineralizers, which accomplish an adequate solubility of the starting materials and promote the formation of reactive intermediate species. The reactions were performed at temperatures between 870 and 1070 K and pressures up to 230 MPa. All studied compounds crystallize in wurtzitederived superstructures with orthorhombic space groups Pna21 (II-IV-N2) and Cmc21 (I-IV2-N3), respectively, which was confirmed by powder X-ray diffraction. Optical bandgaps were estimated from diffuse reflectance spectra using the Kubelka–Munk function (MgSiN2 : 4.8 eV, MgGeN2 : 3.2 eV, MnSiN2 : 3.5 eV, MnGeN2 : 2.5 eV, LiSi2N3 : 4.4 eV, LiGe2N3: 3.9 eV). Complementary DFT calculations were carried out to gain insight into the electronic band structures of these
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CHEMISTRY-A EUROPEAN JOURNAL
ISSN
0947-6539
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
7
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
1686-1693
UT code for WoS article
000423804800027
EID of the result in the Scopus database
2-s2.0-85041302017