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Growth of PBI2 single crystals from stoichiometric and Pb excess melts
- Source :
-
Journal of Crystal Growth . Jan2008, Vol. 310 Issue 1, p47-50. 4p. - Publication Year :
- 2008
-
Abstract
- Abstract: We have successfully grown high-purity and -quality PbI2 single crystals by the vertical Bridgman method. The rocking curves of four-crystal X-ray diffraction (XRD) show 120arcsec in full-width at half-maximum (FWHM). The photoluminescence (PL) spectra at 7.8K show the resolved intensive exciton emission line and the weak DAP emission band. The deep-level emissions are not observed. The measurement of the electrical and radiographic properties show that Leadiodide (PbI2) single crystal has a resistivity of 5×1010 Ωcm and imager lag is 8s, respectively. In order to improve the controllability of crystal growth, PbI2 single crystals were also grown from a lead (Pb) excess PbI2 source. The experimental results show very good reproducibility. In addition, the growth models of crystal are proposed, and the growth mechanism is discussed. [Copyright &y& Elsevier]
- Subjects :
- *LEAD compounds
*CRYSTALLOGRAPHY
*SPECTRUM analysis
*CRYSTAL growth
Subjects
Details
- Language :
- English
- ISSN :
- 00220248
- Volume :
- 310
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Crystal Growth
- Publication Type :
- Academic Journal
- Accession number :
- 28103897
- Full Text :
- https://doi.org/10.1016/j.jcrysgro.2007.10.004