
TY  - JOUR
A1  - Ailwood, CR 
A1  - Fielding, PE 
T1  - Sulphur-selenium compounds
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1969
VL  - 22
IS  - 11
SP  - 2301
EP  - 2307
KW  - 
UR  - https://doi.org/10.1071/CH9692301 
N2  - The characterization of various mixtures obtained by fractional recrystallization of sulphur-selenium melts is described. Optical absorption spectra of thin films, mass spectra, and X-ray diffraction data reveal two distinct ranges of homogeneity, the break occurring at 14 at. % Se. The optical absorption edge of crystals containing less than 14 at. % Se varies linearly with composition. A direct optical transition to the conduction band of S8 and a transition due to trapped excitons are thought to contribute to the excessive width of this absorption edge. 
ER  -

