Photothermal absorption spectroscopy of individual semiconductor nanocrystals

被引：84

作者：

Berciaud, S

Cognet, L

Lounis, B

机构：

[1] CNRS, Ctr Phys Mol Opt & Hertzienne, UMR 5798, F-33405 Talence, France

[2] Univ Bordeaux 1, F-33405 Talence, France

来源：

NANO LETTERS | 2005年 / 5卷 / 11期

关键词：

D O I：

10.1021/nl051805d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photothermal heterodyne detection is used to record the first room-temperature absorption spectra of single CdSe/ZnS semiconductor nanocrystals. These spectra are recorded in the high cw excitation regime, and the observed bands are assigned to transitions involving biexciton and trion states. Comparison with the single nanocrystals photoluminescence spectra leads to the measurement of spectral Stokes shifts free from ensemble averaging.

引用

页码：2160 / 2163

页数：4

共 26 条

[1] Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals
Achermann, M
Hollingsworth, JA
Klimov, VI
[J]. PHYSICAL REVIEW B, 2003, 68 (24):
[2] Photothermal heterodyne imaging of individual nonfluorescent nanoclusters and nanocrystals
Berciaud, S
Cognet, L
Blab, GA
Lounis, B
[J]. PHYSICAL REVIEW LETTERS, 2004, 93 (25)
[3] Observation of intrinsic size effects in the optical response of individual gold nanoparticles
Berciaud, S
Cognet, L
Tamarat, P
Lounis, B
[J]. NANO LETTERS, 2005, 5 (03) : 515 - 518
[4] Photothermal imaging of nanometer-sized metal particles among scatterers
Boyer, D
Tamarat, P
Maali, A
Lounis, B
Orrit, M
[J]. SCIENCE, 2002, 297 (5584) : 1160 - 1163
[5] Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots
Caruge, JM
Chan, YT
Sundar, V
Eisler, HJ
Bawendi, MG
[J]. PHYSICAL REVIEW B, 2004, 70 (08): : 085316 - 1
[6] Luminescent quantum dots for multiplexed biological detection and imaging
Chan, WCW
Maxwell, DJ
Gao, XH
Bailey, RE
Han, MY
Nie, SM
[J]. CURRENT OPINION IN BIOTECHNOLOGY, 2002, 13 (01) : 40 - 46
[7] COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0
[8] ELECTROLUMINESCENCE FROM CDSE QUANTUM-DOT POLYMER COMPOSITES
DABBOUSI, BO
BAWENDI, MG
ONITSUKA, O
RUBNER, MF
[J]. APPLIED PHYSICS LETTERS, 1995, 66 (11) : 1316 - 1318
[9] Efros A, 2003, NAN SCI TEC, P52
[10] Random telegraph signal in the photoluminescence intensity of a single quantum dot
Efros, AL
Rosen, M
[J]. PHYSICAL REVIEW LETTERS, 1997, 78 (06) : 1110 - 1113

← 1 2 3 →