Growth of mesoscopic correlated droplet patterns by high-vacuum sublimation

被引：59
作者：
Brinkmann, M
Biscarini, F
Taliani, C
Aiello, I
Ghedini, M
机构：
[1] CNR, Ist Spettroscopia Mol, I-40129 Bologna, Italy
[2] Univ Calabria, Dipartimento Chim, I-87100 Arcavacata Di Rende, CS, Italy
来源：
PHYSICAL REVIEW B | 2000年 / 61卷 / 24期
关键词：
D O I：
10.1103/PhysRevB.61.R16339
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel growth mode, characterized by absence of grain coarsening, Ostwald ripening, and secondary nucleation, is observed for a polar conjugated molecule, viz. tris-(8-hydroxyquinoline) aluminum (III) (Alq(3)), grown onto an apolar silicon substrate by high-vacuum sublimation. It results in correlated droplet patterns on a mesoscopic length scale with narrow size distribution, which can be tuned by means of the deposition time t and substrate temperature T-s. A comprehensive analysis of the results is obtained on the basis of a capture zone model.
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页码：16339 / 16342
页数：4
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