Evidence for surface reconstruction on InAs nanocrystals -: art. no. 245308

被引：32

作者：

McGinley, C

Riedler, M

Möller, T

Borchert, H

Haubold, S

Haase, M

Weller, H

机构：

[1] DESY, HASYLAB, D-22603 Hamburg, Germany

[2] Univ Hamburg, Inst Phys Chem, D-22761 Hamburg, Germany

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.65.245308

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By means of photoelectron spectroscopy with synchrotron radiation we have studied the surfaces of colloidally prepared InAs nanocrystals in the 30-60 Angstrom size range. We find evidence that specific surface states exist for both In and As atoms and that the passivating trioctylphosphine ligands form chemical bonds with a fraction of the surface In and As atoms. There is evidence for a significant amount of bond-length variation at the nanocrystal surface.

引用

页码：2453081 / 2453085

页数：5

共 36 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].