MEASUREMENT OF THE SIZE-DEPENDENT HOLE SPECTRUM IN CDSE QUANTUM DOTS

被引：427

作者：

NORRIS, DJ

SACRA, A

MURRAY, CB

BAWENDI, MG

机构：

[1] Massachusetts Institute of Technology, Cambridge, MA 02139

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.72.2612

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We combine a new synthesis with transient optical hole burning to observe and assign the size evolution (19 to 115 angstrom diameter, sigma < 5%) of a series of excited states in CdSe quantum dots. We observe an avoided crossing around the spin orbit energy in the hole spectra for approximately 65 angstrom dots, indicating the importance of valence band complexities in the description of the excited states. Comparison with dc Stark data shows that bleach spectra are consistent with localized carrier induced electric fields.

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页码：2612 / 2615

页数：4

相关论文

共 19 条

[1] ELECTRONIC STATES OF SEMICONDUCTOR CLUSTERS - HOMOGENEOUS AND INHOMOGENEOUS BROADENING OF THE OPTICAL-SPECTRUM [J].

ALIVISATOS, AP ;

HARRIS, AL ;

LEVINOS, NJ ;

STEIGERWALD, ML ;

BRUS, LE .

JOURNAL OF CHEMICAL PHYSICS, 1988, 89 (07) :4001-4011

[2] ELECTRONIC-STRUCTURE AND PHOTOEXCITED-CARRIER DYNAMICS IN NANOMETER-SIZE CDSE CLUSTERS [J].

BAWENDI, MG ;

WILSON, WL ;

ROTHBERG, L ;

CARROLL, PJ ;

JEDJU, TM ;

STEIGERWALD, ML ;

BRUS, LE .

PHYSICAL REVIEW LETTERS, 1990, 65 (13) :1623-1626

[3] LUMINESCENCE PROPERTIES OF CDSE QUANTUM CRYSTALLITES - RESONANCE BETWEEN INTERIOR AND SURFACE LOCALIZED STATES [J].

BAWENDI, MG ;

CARROLL, PJ ;

WILSON, WL ;

BRUS, LE .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (02) :946-954

[4] ELECTRON ELECTRON AND ELECTRON-HOLE INTERACTIONS IN SMALL SEMICONDUCTOR CRYSTALLITES - THE SIZE DEPENDENCE OF THE LOWEST EXCITED ELECTRONIC STATE [J].

BRUS, LE .

JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (09) :4403-4409

[5] CDSE NANOCRYSTALS WITH A DIPOLE-MOMENT IN THE 1ST EXCITED-STATE [J].

COLVIN, VL ;

ALIVISATOS, AP .

JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (01) :730-733

[6]

EFROS AL, 1982, SOV PHYS SEMICOND+, V16, P772

[7] ABSORPTION AND INTENSITY-DEPENDENT PHOTOLUMINESCENCE MEASUREMENTS ON CDSE QUANTUM DOTS - ASSIGNMENT OF THE 1ST ELECTRONIC-TRANSITIONS [J].

EKIMOV, AI ;

HACHE, F ;

SCHANNEKLEIN, MC ;

RICARD, D ;

FLYTZANIS, C ;

KUDRYAVTSEV, IA ;

YAZEVA, TV ;

RODINA, AV ;

EFROS, AL .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1993, 10 (01) :100-107

[8] PHOTOCHEMISTRY OF SEMICONDUCTOR COLLOIDS .36. FLUORESCENCE INVESTIGATIONS ON THE NATURE OF ELECTRON AND HOLE TRAPS IN Q-SIZED COLLOIDAL CDS PARTICLES [J].

EYCHMULLER, A ;

HASSELBARTH, A ;

KATSIKAS, L ;

WELLER, H .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1991, 95 (01) :79-84

[9]

GRIGORYAN GB, 1990, FIZ TVERD TELA, V32, P1031

[10] QUANTUM-CONFINED STARK-EFFECT IN VERY SMALL SEMICONDUCTOR CRYSTALLITES [J].

HACHE, F ;

RICARD, D ;

FLYTZANIS, C .

APPLIED PHYSICS LETTERS, 1989, 55 (15) :1504-1506