Solution Growth and Performance Study of Cs 2 AgBiBr 6 Single Crystal
Cs 2 AgBiBr 6 high purity polycrystalline powders are synthesized by solution method. The millimeter‐sized Cs 2 AgBiBr 6 crystals are obtained by cooling method with hydrobromic acid as solvent. Powder X‐Ray diffraction (XRD) analysis shows that the crystal is of cubic structure and its lattice cons...
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| Veröffentlicht in: | Crystal research and technology (1979) Jg. 55; H. 3 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Journal Article |
| Sprache: | Englisch |
| Veröffentlicht: |
01.03.2020
|
| ISSN: | 0232-1300, 1521-4079 |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Cs
2
AgBiBr
6
high purity polycrystalline powders are synthesized by solution method. The millimeter‐sized Cs
2
AgBiBr
6
crystals are obtained by cooling method with hydrobromic acid as solvent. Powder X‐Ray diffraction (XRD) analysis shows that the crystal is of cubic structure and its lattice constant is
a
=
b
=
c
=11.2562 Å. Optical absorption property is tested by ultraviolet‐visible (UV‐Vis) spectrophotometer. The results show that the absorption edge of the Cs
2
AgBiBr
6
crystal is at about 593 nm and the band gap value is 2.12 eV. In addition, the thermogravimetric analysis/differential thermal analysis (TG/DTA) curves of Cs
2
AgBiBr
6
crystal at 20–800 °C are measured. The thermal decomposition mechanism of Cs
2
AgBiBr
6
crystal is analyzed. The results show that Cs2AgBiBr6 crystal with high quality can be prepared by solution method, and it has potential application advantages in the field of photoelectric devices. |
|---|---|
| ISSN: | 0232-1300 1521-4079 |
| DOI: | 10.1002/crat.201900222 |