In:
Crystal Research and Technology, Wiley, Vol. 52, No. 12 ( 2017-12)
Abstract:
High quality single crystals of bis‐(8‐hydroxyquinoline) zinc (ZnQ 2 ), a π‐conjugated molecular semiconductor with high thermal stability, good electron transport ability and excellent electroluminescence properties, were prepared by physical vapor deposition (PVD) method in a double zone tube furnace. X‐ray single crystal diffraction (XSCD) indicates that the sample was ZnO 2 tetramer, (ZnQ 2 ) 4 , with the triclinic unit cell parameters: a = 10.8537(15) Å, b = 11.8814(16) Å, c = 13.0532(18) Å, α = 74.119(2)°, β = 73.449(2)°, γ = 70.999(2)°, volume = 1494.9(4) Å 3 and Z = 1. The crystallization mechanism analysis suggests a classical crystal growth process at low temperatures (300 and 320 °C) and an existence of non‐classical particle‐attachment crystal growth pathway at high temperature (340 °C). The (ZnQ 2 ) 4 crystals also show enhanced photoluminescence (PL) intensities and narrower full width at half maximum (FWHM) compared with that of the ZnQ 2 thin film.
Type of Medium:
Online Resource
ISSN:
0232-1300
,
1521-4079
DOI:
10.1002/crat.201700229
Language:
English
Publisher:
Wiley
Publication Date:
2017
detail.hit.zdb_id:
1480828-6
