How quickly does a hole relax into an engineered defect state in CDSE quantum dots

ACS Nano

Volumn 6, Issue 4, 2012, Pages 3063-3069

  Avidan, Assaf ^a   Pinkas, Iddo ^a   Oron, Dan ^a  

^a WEIZMANN INSTITUTE OF SCIENCE   (Israel)

Author keywords

cooling; doping; holes; LO phonons; quantum dots

Indexed keywords

BAND EDGE; CDSE; CDSE QUANTUM DOTS; COMBINED EFFECT; DEFECT BANDS; DEFECT ENERGY; DEFECT STATE; ENGINEERED DEFECTS; HOLE RELAXATION; HOLES; LO PHONONS; LONGITUDINAL OPTICAL PHONONS; STATE-FILLING; SURFACE EFFECT; TRANSIENT ABSORPTION SPECTROSCOPIES;

CADMIUM ALLOYS; CADMIUM COMPOUNDS; COOLING; DOPING (ADDITIVES); MONOLAYERS; PHONONS; SEMICONDUCTOR QUANTUM DOTS; ZINC SULFIDE;

EXCITED STATES;

EID: 84860387778     PISSN: 19360851     EISSN: 1936086X     Source Type: Journal    
DOI: 10.1021/nn204690p     Document Type: Article

References (25)

1. Norris, D. J.; Efros, A. L.; Erwin, S. C. Doped Nanocrystals Science 2008, 319, 1776-1779
2. Norris, D. J.; Yao, N.; Charnock, F. T.; Kennedy, T. A. High Quality Manganese-Doped ZnSe Nanocrystals Nano Lett. 2001, 1, 3-7
3. Pradhan, N.; Goorskey, D.; Thessing, J.; Peng, X. An Alternative of CdSe Nanocrystals Emitters: Pure and Tunable Impurity Emission in ZnSe Nanocrystals J. Am. Chem. Soc. 2005, 127, 17586-17587
4. Pradhan, N.; Peng, X. Efficient and Color Tunable Mn-Doped ZnSe Nanocrystal Emitters: Control of Optical Performance via Greener Synthetic Chemistry J. Am. Chem. Soc. 2007, 129, 3339-3347
5. Avidan, A.; Oron, D. Large Blue Shift of the Biexciton State in Tellurium Doped CdSe Colloidal Quantum Dots Nano Lett. 2008, 8, 2384-2387
6. Franzl, T.; Müller, J.; Klar, T. A.; Rogach, A. L.; Feldmann, J.; Talapin, D. V.; Weller, H. CdSe:Te Nanocrystals: Band Edge versus Te-Related Emission J. Phys. Chem. C 2007, 111, 2974-2979
7. Menkara, H.; Gilstrap, R. A.; Morris, T.; Minkara, M.; Wagner, B. K.; Summers, C. J. Developement of Nanophosphores for Light Emitting Diodes Opt. Express 2011, 19, A972-A981
8. Mocatta, D.; Cohen, G.; Schattner, J.; Millo, O.; Rabani, E.; Banin, U. Heavily Doped Semiconductors Nanocrystals Quantum Dots Science 2011, 332, 77-81
9. Beaulac, R.; Archer, P. I.; Ochsenbein, S. T.; Gamelin, D. R. Mn-Doped CdSe Quantum Dots: New Inorganic Materials for Spin Electronics and Spin-Photonics Adv. Funct. Mater. 2008, 18, 3873-3891
10. Conwell, E. High Field Transport in Semiconductors; Academic Press: New York, 1967.
11. Klimov, V. I. Optical Nonlinearities and Ultrafast Carrier Dynamics in Semiconductor Nanocrystals J. Phys. Chem. B 2000, 104, 6112-6123
12. Bockelmann, U.; Bastard, G. Phonon Scattering and Energy Relaxation in Two-, One-, and Zero-Dimensional Electron Gases Phys. Rev. B 1990, 42, 8947-8951
13. Klimov, V. I.; McBranch, D. W.; Leatherdale, C. A.; Bawendi, M. G. Electron and Hole Relaxation Pathways in Semiconductor Quantum Dots Phys. Rev. B 1990, 60, 13740-13749
14. Xu, S.; Mikhailovsky, A. A.; Hollingsworth, J. A.; Klimov, V. I. Hole Intraband Relaxationin Strongly Confined Quantum Dots: Revisiting the Phonon Bottleneck Problem Phys. Rev. B 2002, 70, 045319(1-5)
15. Klimov, V. I.; Schwarz, Ch. J.; McBranch, D. W.; Leatherdale, C. A.; Bawendi, M. G. Ultrafast Dynamics of Inter- and Intraband Transitions in Semiconductor Nanocrystals: Implications for Quantum-Dot Lasers Phys. Rev. B 1999, 60, R2177-R2180
16. Efros, A. L.; Kharchenko, V. A.; Rosen, M. Breaking the Phonon Botlleneck in Nanometer Scale Quantum Dots: Role of Auger-Like Processes Solid State Commun. 1995, 93, 281-284
17. Klimov, V. I.; Michailovski, L. L.; McBranch, D. W.; Leatherdale, C. A.; Bawendi, M. G. Mechanisms for Intraband Energy Relaxation in Semiconductor Quantum Dots: The Role of Electron-Hole Interactions Phys. Rev. B 2000, 61, 13349-13352
18. Hendry, E.; Koeberg, M.; Wang, F.; Zhang, H.; de Mello Donega, C.; Vanmaekelbergh, D.; Bonn, M. Direct Observation of Electron-to-Hole Energy Transfer in CdSe Quantum Dots Phys. Rev. Lett. 2006, 96, 057408(1-4)
19. Kambhampati, P. Hot Exciton Relaxation Dynamics in Semiconductor Quantum Dots: Radiationless Transitions on the Nanoscale J. Phys. Chem. C 2011, 115, 2208922109
20. Cooney, R. R.; Sewall, S. L.; Anderson, K. E. H.; Dias, E. A.; Kambhampati, P. Breaking the Phonon Bottleneck for Holes in Semiconductor Quantum Dots Phys. Rev. Lett. 2007, 98, 177403(1-4)
21. Cooney, R. R.; Sewall, S. L.; Dias, E. A.; Sagar, D. M.; Anderson, K. E. H.; Kambhampati, P. Unified Picture of Electron and Hole Relaxation Pathways in Semiconductor Quantum Dots Phys. Rev. B 2007, 75, 245311(1-14)
22. Califano, M.; Bester, G.; Zunger, A. Prediction of a Shape-Induced Enhancement in the Hole Relaxation in Nanocrystals Nano Lett. 2003, 3, 1197-1202
23. Nomura, S.; Kobayashi, T. Exciton-LO-Phonon Couplings in Spherical Semiconductor Nanocrystals Phys. Rev. B 1992, 45, 1305-1316
24. William, W. Yu.; Lianhua, Q.; Wenzhuo, G.; Peng, X. Experimental Determination of the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals Chem. Mater. 2003, 15, 2854-2860
25. Pandey, A.; Guyot-Sionnest, P. Slow Electron Cooling in Colloidal Quantum Dots Science 2008, 322, 929-932