Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films

ACS Nano

Volumn 4, Issue 9, 2010, Pages 5211-5216

  Liu, Heng ^a   Pourret, Alexandre ^a,b   Guyot Sionnest, Philippe ^a  

^a UNIVERSITY OF CHICAGO   (United States)

^b Centre National de la Recherche Scientifique   (France)

Author keywords

CdSe quantum dots film; electrochemistry; ES Mott variable range hopping crossover; low temperature

Indexed keywords

CDSE QUANTUM DOTS; CDSE QUANTUM DOTS FILM; DENSITY OF STATE; LOW DENSITY; LOW TEMPERATURES; MONO-DISPERSED; MOTT HOPPING; MOTT VARIABLE-RANGE HOPPING; OHMIC CONDUCTIVITY; QUANTUM DOT; TEMPERATURE DEPENDENCE; VARIABLE RANGE HOPPING; VARIABLE RANGE HOPPING MODEL;

CADMIUM ALLOYS; ELECTROCHEMISTRY; ELECTROLYSIS; OPTICAL WAVEGUIDES; SEMICONDUCTOR QUANTUM DOTS;

CADMIUM COMPOUNDS;

EID: 77957325421     PISSN: 19360851     EISSN: 1936086X     Source Type: Journal    
DOI: 10.1021/nn101376u     Document Type: Article

References (25)

1. Murray, C. B.; Kagan, C. R.; Bawendi, M. G. Synthesis and Characterization of Monodisperse Nanocrystals and Close-Packed Nanocrystal Assemblies Annu. Rev. Mater. Sci. 2000, 30, 545-610
2. Yu, D.; Wang, C.; Guyot-Sionnest, P. n-Type Conducting CdSe Nanocrystal Solids Science 2003, 300, 1277-1280
3. Zabet-Khosousi, A.; Dhirani, A.-A. Charge Transport in Nanoparticle Assemblies Chem. Rev. 2008, 108, 4072-4124
4. Yu, D.; Wang, C.; Wehrenberg, B. L.; Guyot-Sionnest, P. Variable Range Hopping Conduction in Semiconductor Nanocrystal Solids Phys. Rev. Lett. 2004, 92, 216802
5. Zeng, H.; Black, C. T.; Sandstrom, R. L.; Rice, P. M.; Murray, C. B.; Shouheng, S. Magnetotransport of Magnetite Nanoparticle Arrays Phys. Rev. B 2006, 73, 020402
6. Tran, T. B.; Beloborodov, I. S.; Hu, J.; Lin, X. M.; Rosenbaum, T. F.; Jaeger, H. M. Sequential Tunneling and Inelastic Cotunneling in Nanoparticle Arrays Phys. Rev. B 2008, 78, 075437
7. Xu, K.; Qin, L.; Heath, J. R. The Crossover from Two Dimensions to One Dimension in Granular Electronic Materials Nat. Nanotechnol. 2009, 4, 368-372
8. Wehrenberg, B. L.; Yu, D.; Ma, J.; Guyot-Sionnest, P. Conduction in Charged PbSe Nanocrystal Films J. Phys. Chem. B 2005, 109, 20192-20199
9. Talapin, D. V.; Murray, C. B. PbSe Nanocrystal Solids for n- and p-Channel Thin Film Field-Effect Transistors Science 2005, 310, 86-89
10. Houtepen, A. J.; Kockmann, D.; Vanmaekelbergh, D. Reappraisal of Variable-Range Hopping in Quantum-Dot Solids Nano Lett. 2008, 8, 3516-3520
11. Shklovskii, B. I.; Efros, A. L. Electronic Properties of Doped Semiconductors; Springer-Verlag: Berlin, 1984; pp 202 - 251.
12. Hillhouse, H. W.; Beard, M. C. Solar Cells from Colloidal Nanocrystals: Fundamentals, Materials, Devices, and Economics Curr. Opin. Colloid Interface Sci. 2009, 14, 245-259
13. Edward, H. S. Solar Cells, Photodetectors, and Optical Sources from Infrared Colloidal Quantum Dots Adv. Mater. 2008, 20, 3958-3964
14. Mott, N. F. S. Conduction in Non-Crystalline Materials, 2nd ed.; Clarendon Press: Oxford, 1993; Vol. ix, p 150.
15. Yu, D.; Wehrenberg, B. L.; Yang, I.; Kang, W.; Guyot-Sionnest, P. Magnetoresistance of n-Type Quantum Dot Solids Appl. Phys. Lett. 2006, 88, 072504
16. Zhang, J.; Shklovskii, B. I. Density of States and Conductivity of a Granular Metal or an Array of Quantum Dots Phys. Rev. B 2004, 70, 115317
17. Zhang, Y.; Dai, O.; Levy, M.; Sarachik, M. P. Probing the Coulomb Gap in Insulating n-Type CdSe Phys. Rev. Lett. 1990, 64, 2687
18. y Films Phys. Rev. B 1991, 44, 3599
19. Moreira, H. S.; Sampaio, J. F.; Alves, E. S.; de Oliveira, A. G. Electron Concentration Dependence of the Coulomb Gap in AlGaAs:Si Phys. Rev. Lett. 1998, 80, 1706
20. Jha, P. P.; Guyot-Sionnest, P. Photoluminescence Switching of Charged Quantum Dot Films J. Phys. Chem. C 2007, 111, 15440-15445
21. Zabrodskii, A. G. The Coulomb Gap: The View of an Experimenter Philos. Mag. B 2001, 81, 1131-1151
22. Delerue, C.; Allan, G.; Niquet, Y. M. Collective Excitations in Charged Nanocrystals and in Close-Packed Arrays of Charged Nanocrystals Phys. Rev. B 2005, 72, 195316
23. Davies, J. H. Coulomb Gaps and Hubbard Gaps J. Phys. C: Solid State Phys. 1984, 17, 3031-3043
24. Yildiz, A.; Serin, N.; Serin, T.; Kasap, M. Crossover from Nearest-Neighbor Hopping Conduction to Efros-Shklovskii Variable-Range Hopping Conduction in Hydrogenated Amorphous Silicon Films Jpn. J. Appl. Phys. 2009, 48, 111203
25. Sheng, P.; Abeles, B.; Arie, Y. Hopping Conductivity in Granular Metals Phys. Rev. Lett. 1973, 31, 44