Exploring exciton relaxation and multiexciton generation in PbSe nanocrystals using hyperspectral near-IR probing

ACS Nano

Volumn 6, Issue 4, 2012, Pages 3269-3277

  Gdor, Itay ^a   Sachs, Hanan ^a   Roitblat, Avishy ^a   Strasfeld, David B ^b   Bawendi, Moungi G ^b   Ruhman, Sanford ^a  

^a HEBREW UNIVERSITY OF JERUSALEM   (Israel)

^b MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

carrier multiplication; exciton cooling; multiexciton generation; quantum dots; ultrafast spectroscopy

Indexed keywords

ABSORPTION CROSS SECTIONS; BAND ASSIGNMENT; CARRIER MULTIPLICATION; EXCITATION PULSE; EXCITATION WAVELENGTH; EXCITON RELAXATION; EXTINCTION COEFFICIENTS; FEMTOSECOND TRANSIENT ABSORPTION SPECTROSCOPY; FLUENCES; GLOBAL KINETICS; HYPERSPECTRAL; INAS; LEAD SELENIDE; LOW SIGNAL LEVELS; MULTIEXCITON GENERATION; MULTIPHOTON EXCITATION; NANODOTS; NEAR-IR; PBSE NANOCRYSTALS; PHOTON ENERGY; PUMP PULSE; PUMP WAVELENGTH; PUMP-PROBE; SAMPLE CONCENTRATION; SPECTRAL FEATURE; SUBPICOSECOND; TRANSIENT SPECTRA; TRIPLE EXCITON; ULTRA-FAST; ULTRAFAST SPECTROSCOPY; UNDERLYING MECHANISM;

EXCITED STATES; INDIUM ARSENIDE; MULTIPHOTON PROCESSES; OPTICAL PUMPING; PUMPS; SEMICONDUCTOR QUANTUM DOTS;

EXCITONS;

EID: 84860356199     PISSN: 19360851     EISSN: 1936086X     Source Type: Journal    
DOI: 10.1021/nn300184n     Document Type: Article

References (46)

1. Klimov, V. I. Optical Nonlinearities and Ultrafast Carrier Dynamics in Semiconductor Nanocrystals J. Phys. Chem. B 2000, 104, 6112-6123
2. Klimov, V. I. Spectral and Dynamical Properties of Multiexcitons in Semiconductor Nanocrystals Annu. Rev. Phys. Chem. 2007, 58, 635-673
3. Nozik, A. J.; Beard, M. C.; Luther, J. M.; Law, M.; Ellingson, R. J.; Johnson, J. C. Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Chem. Rev. 2010, 110, 6873-6890
4. Kambhampati, P. Unraveling the Structure and Dynamics of Excitons in Semiconductor Quantum Dots Acc. Chem. Res. 2011, 44, 1-13
5. Wehrenberg, B. L.; Wang, C.; Guyot-Sionnest, P. Interband and Intraband Optical Studies of PbSe Colloidal Quantum Dots J. Phys. Chem. B 2002, 106, 10634-10640
6. x Alloys J. Appl. Phys. 1998, 83, 4213-4221
7. Robbin, D. J. Aspects of the Theory of Impact Ionization in Semiconductors Phys. Status Solidi 1980, 97, 9-50
8. Smith, A.; Dutton, D. Behavior of Lead Sulfide Photocells in the Ultraviolet J. Opt. Soc. Am. 1958, 48, 1007-1009
9. Schaller, R. D.; Klimov, V. I. High Efficiency Carrier Multiplication in PbSe Nanocrystals: Implications for Solar Energy Conversion Phys. Rev. Lett. 2004, 92, 186601
10. Ellingson, R. J.; Beard, M. C.; Johnson, J. C.; Yu, P.; Micic, O. I.; Nozik, A. J.; Shabaev, A.; Efros, A. L. Highly Efficient Multiple Exciton Generation in Colloidal PbSe and PbS Quantum Dots Nano Lett. 2005, 5, 865-871
11. Schaller, R. D.; Sykora, M.; Pietryga, J. M.; Klimov, V. I. Seven Excitons at a Cost of One: Redefining the Limits for Conversion Efficiency of Photons into Charge Carriers Nano Lett. 2006, 6, 424-429
12. Schaller, R. D.; Petruska, M. A.; Klimov, V. I. Effect of Electronic Structure on Carrier Multiplication Efficiency: Comparative Study of PbSe and CdSe Nanocrystals Appl. Phys. Lett. 2005, 87, 253102
13. Schaller, R. D.; Pietryga, J. M.; Klimov, V. I. Carrier Multiplication in InAs Nanocrystal Quantum Dots with an Onset Defined by the Energy Conservation Limit Nano Lett. 2007, 7, 3469-3476
14. Nozik, A. J. Quantum Dot Solar Cells Physica E 2002, 14, 115-120
15. Shockley, W.; Queisser, H. J. Detailed Balance Limit of Efficiency of p-n Junction Solar Cells J. Appl. Phys. 1961, 32, 510-519
16. Beard, M. C.; Ellingson, R. J. Multiple Exciton Generation in Semiconductor Nanocrystals: Toward Efficient Solar Energy Conversion Laser Photonics Rev. 2008, 2, 377-399
17. Klimov, V. I. Spectral and Dynamical Properties of Multiexcitons in Semiconductor Nanocrystals Annu. Rev. Phys. Chem. 2007, 58, 635-673
18. Semonin, O. E.; Luther, J. M.; Choi, S.; Chen, H. Y.; Gao, J.; Nozik, A. J.; Beard, M. C. Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell Science 2011, 334, 1530-1533
19. Aerts, M.; Suchand Sandeep, C. S.; Gao, Y.; Savenije, T. J.; Schins, J. M.; Houtepen, A. J.; Kinge, S.; Siebbeles, L. D. A. Free Charges Produced by Carrier Multiplication in Strongly Coupled PbSe Quantum Dot Films Nano Lett. 2011, 11, 4485-4489
20. Nair, G.; Bawendi, M. G. Carrier Multiplication Yields of CdSe and CdTe Nanocrystals by Transient Photoluminescence Spectroscopy Phys. Rev. B 2007, 76, 081304
21. Nair, G.; Geyer, S. M.; Chang, L.; Bawendi, M. G. Carrier Multiplication Yields in PbS and PbSe Nanocrystals Measured by Transient Photoluminescence Phys. Rev. B 2008, 78, 125325
22. Pijpers, J. J. H.; Ulbricht, R.; Tielrooij, K. J.; Osherov, A.; Golan, Y.; Delerue, C.; Allan, G.; Bonn, M. Assessment of Carrier-Multiplication Efficiency in Bulk PbSe and PbS Nat. Phys. 2009, 5, 811-814
23. Klimov, V. I.; Mikhailovsky, A. A.; McBranch, D. W.; Leatherdale, C. A.; Bawendi, M. G. Quantization of Multiparticle Auger Rates in Semiconductor Quantum Dots Science 2000, 287, 1011-1013
24. Klimov, V. I.; McGuire, J. A.; Schaller, R. D.; Rupasov, V. I. Scaling of Multiexciton Lifetimes in Semiconductor Nanocrystals Phys. Rev. B 2008, 77, 195324
25. Ben-Lulu, M.; Mocatta, D.; Bonn, M.; Banin, U.; Ruhman, S. On the Absence of Detectable Carrier Multiplication in a Transient Absorption Study of InAs/CdSe/ZnSe Core/Shell1/Shell2 Quantum Dots Nano Lett. 2008, 8, 1207-1211
26. Trinh, M. T.; Houtepen, A. J.; Schins, J. M.; Hanrath, T; Piris, J.; Knulst, W.; Goossens, A.; Siebbeles, L. D. A. In Spite of Recent Doubts Carrier Multiplication Does Occur in PbSe Nanocrystals Nano Lett. 2008, 8, 1713-1718
27. Ji, M.; Park, S.; Connors, S. T.; Mokari, T.; Cui, Y.; Gaffney, K. J. Efficient Multiple Exciton Generation Observed in Colloidal PbSe Quantum Dots with Temporally and Spectrally Resolved Intraband Excitationv Nano Lett. 2009, 9, 1217-1222
28. Hardman, S. J. O.; Graham, D. M.; Stubbs, S. K.; Spencer, B. F.; Seddon, E. A.; Fung, H.; Gardonio, S.; Sirotti, F.; Silly, M. G.; Akhtar, J. et al. Electronic and Surface Properties of PbS Nanoparticles Exhibiting Efficient Multiple Exciton Generation Phys. Chem. Chem. Phys. 2011, 13, 20275-20283
29. McGuire, J. A.; Sykora, M.; Joo, J.; Pietryga, J. M.; Klimov, V. I. Apparent versus True Carrier Multiplication Yields in Semiconductor Nanocrystals Nano Lett. 2010, 10, 2049-2057
30. Midgett, A. G.; Hillhouse, H. W.; Huges, B. K.; Nozik, A. J.; Beard, M. C. Flowing versus Static Conditions for Measuring Multiple Exciton Generation in PbSe Quantum Dots J. Phys. Chem. C 2010, 114, 17486-17500
31. Tyagi, P.; Kambhampati, P. False Multiple Exciton Recombination and Multiple Exciton Generation Signals in Semiconductor Quantum Dots Arise from Surface Charge Trapping J. Chem. Phys. 2011, 134, 094706
32. Peterson, J. J.; Huang, L.; Delerue, C.; Allan, G.; Krauss, T. D. Uncovering Forbidden Optical Transitions in PbSe Nanocrystals Nano Lett. 2007, 7, 3827-3831
33. Harbold, J. M.; Du, H.; Krauss, T. D.; Cho, K. S.; Murray, C. B.; Wise, F. W. Time-Resolved Intraband Relaxation of Strongly Confined Electrons and Holes in Colloidal PbSe Nanocrystals Phys. Rev. B 2005, 72, 195312
34. Liljeroth, P.; van Emmichoven, P. A. Z.; Hickey, S. G.; Weller, H.; Grandidier, B.; Allan, G.; Vanmaekelbergh, D. Density of States Measured by Scanning-Tunneling Spectroscopy Sheds New Light on the Optical Transitions in PbSe Nanocrystals Phys. Rev. Lett. 2005, 95, 086801
35. Trinh, M. T.; Houtepen, A. J.; Schins, J. M.; Piris, J.; Siebbeles, L. D. A. Nature of the Second Optical Transition in PbSe Nanocrystals Nano Lett. 2008, 8, 2112-2117
36. Nootz, G.; Padilha, L. A.; Levina, L; Sukhovatkin, V.; Webster, S.; Brzozowski, L.; Sargent, E. H.; Hagan, D. J.; Van Stryland, E. W. Size Dependence of Carrier Dynamics and Carrier Multiplication in PbS Quantum Dots Phys. Rev. B 2011, 83, 155302
37. Gesuele, F; Sfeir, M; Koh, W; Murray, C. B.; Heinz, T. F.; Wei Wong, C. Ultrafast Supercontinuum Spectroscopy of Carrier Multiplication and Biexcitonic Effects in Excited States of PbS Quantum Dots. Nano Lett., 2011, DOI: 10.1021/nl2021224.
38. Sewall, S. L.; Franceschetti, A.; Cooney, R. R.; Zunger, A.; Kambhampati, P. Direct Observation of the Structure of Band-Edge Biexcitons in Colloidal Semiconductor CdSe Quantum Dots Phys. Rev. B 2009, 80, 081310
39. Sewall, S. L.; Cooney, R. R.; Anderson, K. E. H.; Dias, E. A.; Sagar, D. M.; Kambhampati, P. State-Resolved Studies of Biexcitons and Surface Trapping Dynamics in Semiconductor Quantum Dots J. Chem. Phys. 2008, 129, 084701
40. Kambhampati, P. Hot Exciton Relaxation Dynamics in Semiconductor Quantum Dots: Radiationless Transitions on the Nanoscale J. Phys. Chem. C 2011, 115, 22089-22109
41. Beard, M. C.; Midgett, A. G.; Law, M.; Semonin, O. E.; Ellingson, R. J.; Nozik, A. J. Variations in the Quantum Efficiency of Multiple Exciton Generation for a Series of Chemically Treated PbSe Nanocrystal Films Nano Lett. 2009, 9, 836-845
42. Cho, B.; Peters, W. K.; Hill, R. J.; Courtney, T. L.; Jonas, D. M. Hot Carrier Dynamics in Lead Sulfide Quantum Dots Nano Lett. 2010, 10, 2498-2505
43. Nair, G.; Chang, L. Y.; Geyer, S. M.; Bawendi, M. G. Perspective on the Prospects of a Carrier Multiplication Nanocrystal Solar Cell Nano Lett. 2011, 11, 2145-2151
44. Sewall, S. L.; Cooney, R. R.; Dias, E. A.; Tyagi, P.; Kambhampati, P. State-Resolved Observation in Real Time of the Structural Dynamics of Multiexcitons in Semiconductor Nanocrystals Phys. Rev. B 2011, 84, 235304
45. Steckel, J. S.; Coe-Sullivan, S.; Bulovic, V.; Bawendi, M. G. 1.3 to 1.55 μm Tunable Electroluminescence from PbSe Quantum Dots Embedded within an Organic Device Adv. Mater. 2003, 15, 1862-1866
46. Wand, A.; Rozin, R.; Eliash, T.; Jung, K. H.; Sheves, M.; Ruhman, S. Asymmetric Toggling of a Natural Photoswitch: Ultrafast Spectroscopy of Anabaena Sensory Rhodopsin J. Am. Chem. Soc. 2011, 133, 20922-20932