A DOUBLE-TEMPERATURE-GRADIENT TECHNIQUE FOR THE GROWTH OF SINGLE-CRYSTAL FULLERITES FROM THE VAPOR-PHASE

被引：140

作者：

HALUSKA, M

KUZMANY, H

VYBORNOV, M

ROGL, P

FEJDI, P

机构：

[1] UNIV VIENNA,INST PHYS CHEM,A-1090 VIENNA,AUSTRIA

[2] COMENIUS UNIV,FAC NAT SCI,DEPT MINERAL & PETROL,CS-80100 BRATISLAVA,CZECHOSLOVAKIA

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1993年 / 56卷 / 03期

关键词：

D O I：

10.1007/BF00539469

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fullerite single crystals were prepared by a sublimation-condensation method in a closed evacuated glass tube situated in a double-temperature-gradient furnace. Crystals of various size and up to 9 mg weight with well expressed smooth and shiny faces were obtained. X-ray analysis, interfacial angle measurements and observed morphological habits of selected crystals of C60 confirm the theoretically predicted and experimentally well established fcc structure at room temperature with two types of morphological faces, namely {111} and {100}. A strong tendency to twinning was observed. In the case of C70 crystals, a pure fcc structure was observed. Information on growth kinetics and on instability versus exposure to air and light were obtained from surface studies. Characteristic changes in a thin surface layer were observed when crystals were exposed to air and light. A new phase of C60 stabilized by oxygen was characterized.

引用

页码：161 / 167

页数：7

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