Electronically active impurities in colloidal quantum dot solids

ACS Nano

Volumn 8, Issue 11, 2014, Pages 11763-11769

  Carey, Graham H ^a   Kramer, Illan J ^a   Kanjanaboos, Pongsakorn ^a   Moreno Bautista, Gabriel ^a   Voznyy, Oleksandr ^a   Rollny, Lisa ^a   Tang, Joel A ^a   Hoogland, Sjoerd ^a   Sargent, Edward H ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

Colloidal quantum dot; Complex; Electroluminescence; Impurities; Ligands; Photovoltaics

Indexed keywords

COST REDUCTION; ELECTRIC RESISTANCE; ELECTROLUMINESCENCE; FILMS; IMPURITIES; LIGANDS; NANOCRYSTALS; SEMICONDUCTOR QUANTUM DOTS;

ALIPHATIC LIGANDS; BIFUNCTIONAL LIGAND; COLLOIDAL QUANTUM DOTS; COMPLEX; HIGH MOLECULAR WEIGHT; PHOTOVOLTAIC DEVICES; PHOTOVOLTAICS; SERIES RESISTANCES;

SOLS;

EID: 84912531545     PISSN: 19360851     EISSN: 1936086X     Source Type: Journal    
DOI: 10.1021/nn505343e     Document Type: Article

References (29)

1. Steckel, J. S.; Coe-Sullivan, S.; Bulović, V.; Bawendi, M. G. 1.3 Mm to 1.55 Mm Tunable Electroluminescence from PbSe Quantum Dots Embedded within an Organic Device. Adv. Mater. 2003, 15, 1862-1866.
2. Qian, L.; Zheng, Y.; Xue, J.; Holloway, P. H. Stable and Efficient Quantum-Dot Light-Emitting Diodes Based on Solution-Processed Multilayer Structures. Nat. Photonics 2011, 5, 543-548.
3. Konstantatos, G.; Howard, I.; Fischer, A.; Hoogland, S.; Clifford, J.; Klem, E.; Levina, L.; Sargent, E. H. Ultrasensitive Solution-Cast Quantum Dot Photodetectors. Nature 2006, 442, 180-183.
4. McDonald, S. A.; Konstantatos, G.; Zhang, S.; Cyr, P. W.; Klem, E. J. D.; Levina, L.; Sargent, E. H. Solution-Processed PbS Quantum Dot Infrared Photodetectors and Photovoltaics. Nat. Mater. 2005, 4, 138-142.
5. Ip, A. H.; Thon, S. M.; Hoogland, S.; Voznyy, O.; Zhitomirsky, D.; Debnath, R.; Levina, L.; Rollny, L. R.; Carey, G. H.; Fischer, A.; et al. Hybrid Passivated Colloidal Quantum Dot Solids. Nat. Nanotechnol. 2012, 7, 577-582.
6. Murray, C. B.; Norris, D. J.; Bawendi, M. G. Synthesis and Characterization of Nearly Monodisperse CdE (E = Sulfur, Selenium, Tellurium) Semiconductor Nanocrystallites. J. Am. Chem. Soc. 1993, 115, 8706-8715.
7. Kramer, I. J.; Sargent, E. H. The Architecture of Colloidal Quantum Dot Solar Cells: Materials to Devices. Chem. Rev. 2014, 114, 863-882.
8. Wang, X.; Koleilat, G. I.; Tang, J.; Liu, H.; Kramer, I. J.; Debnath, R.; Brzozowski, L.; Barkhouse, D. A. R.; Levina, L.; Hoogland, S.; et al. Tandem Colloidal Quantum Dot Solar Cells Employing a Graded Recombination Layer. Nat. Photonics 2011, 5, 480-484.
9. 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.
10. Chuang, C.-H. M.; Brown, P. R.; Bulović, V.; Bawendi, M. G. Improved Performance and Stability in Quantum Dot Solar Cells through Band Alignment Engineering. Nat. Mater. 2014, 13, 796-801.
11. Kirmani, A. R.; Carey, G. H.; Abdelsamie, M.; Yan, B.; Cha, D.; Rollny, L. R.; Cui, X.; Sargent, E. H.; Amassian, A. Effect of Solvent Environment on Colloidal-Quantum-Dot Solar-Cell Manufacturability and Performance. Adv. Mater. 2014, 26, 4717-4723.
12. Pan, J.; El-Ballouli, A. O.; Rollny, L.; Voznyy, O.; Burlakov, V. M.; Goriely, A.; Sargent, E. H.; Bakr, O. M. Automated Synthesis of Photovoltaic-Quality Colloidal Quantum Dots Using Separate Nucleation and Growth Stages. ACS Nano 2013, 7, 10158-10166.
13. Kramer, I.; Minor, J.; Moreno-Bautista, G.; Rollny, L.; Kanjanaboos, P.; Kopilovic, D.; Thon, S. M.; Carey, G. H.; Chou, K. W.; Zhitomirsky, D.; et al. Efficient Spray-Coated Colloidal Quantum Dot Solar Cells. Adv. Mater. 2014, DOI: 10.1002/adma.201403281.
14. Kramer, I. J.; Moreno-Bautista, G.; Minor, J. C.; Kopilovic, D.; Sargent, E. H. Colloidal Quantum Dot Solar Cells on Curved and Flexible Substrates. Appl. Phys. Lett. 2014, 105, 163902.
15. CRC Handbook of Chemistry and Physics Version 2010; 90th ed.; Lide, D. R., Ed.; CRC Press: Boca Raton, 2010.
16. Ma, W.; Luther, J. M.; Zheng, H.; Wu, Y.; Alivisatos, A. P. Photovoltaic Devices Employing Ternary PbSxSe1-X Nanocrystals. Nano Lett. 2009, 9, 1699-1703.
17. Lingley, Z.; Lu, S.; Madhukar, A. A High Quantum Efficiency Preserving Approach to Ligand Exchange on Lead Sulfide Quantum Dots and Interdot Resonant Energy Transfer. Nano Lett. 2011, 11, 2887-2891.
18. Choi, J. J.; Luria, J.; Hyun, B.-R.; Bartnik, A. C.; Sun, L.; Lim, Y.-F.; Marohn, J. A.; Wise, F. W.; Hanrath, T. Photogenerated Exciton Dissociation in Highly Coupled Lead Salt Nanocrystal Assemblies. Nano Lett. 2010, 10, 1805-1811.
19. Voznyy, O.; Thon, S. M.; Ip, A. H.; Sargent, E. H. Dynamic Trap Formation and Elimination in Colloidal Quantum Dots. J. Phys. Chem. Lett. 2013, 4, 987-992.
20. Luther, J. M.; Law, M.; Song, Q.; Perkins, C. L.; Beard, M. C.; Nozik, A. J. Structural, Optical, and Electrical Properties of Self-Assembled Films of PbSe Nanocrystals Treated with 1,2-Ethanedithiol. ACS Nano 2008, 2, 271-280.
21. Fischer, A.; Rollny, L.; Pan, J.; Carey, G. H.; Thon, S. M.; Hoogland, S.; Voznyy, O.; Zhitomirsky, D.; Kim, J. Y.; Bakr, O. M.; et al. Directly Deposited Quantum Dot Solids Using a Colloidally Stable Nanoparticle Ink. Adv. Mater. 2013, 25, 5742-5749.
22. Hines, M. a.; Scholes, G. d. Colloidal PbS Nanocrystals with Size-Tunable Near-Infrared Emission: Observation of Post-Synthesis Self-Narrowing of the Particle Size Distribution. Adv. Mater. 2003, 15, 1844-1849.
23. Snaith, H. J. The Perils of Solar Cell Efficiency Measurements. Nat. Photonics 2012, 6, 337-340.
24. Kroon, J. M.; Wienk, M. M.; Verhees, W. J. H.; Hummelen, J. C. Accurate Efficiency Determination and Stability Studies of Conjugated Polymer/fullerene Solar Cells. Thin Solid Films 2002, 403-404, 223-228.
25. VandeVondele, J.; Krack, M.; Mohamed, F.; Parrinello, M.; Chassaing, T.; Hutter, J. Quickstep: Fast and Accurate Density Functional Calculations Using a Mixed Gaussian and Plane Waves Approach. Comput. Phys. Commun. 2005, 167, 103-128.
26. Lippert, G.; Hutter, J.; Parrinello, M. A Hybrid Gaussian and Plane Wave Density Functional Scheme. Mol. Phys. 1997, 92, 477-488.
27. Hartwigsen, C.; Goedecker, S.; Hutter, J. Relativistic Separable Dual-Space Gaussian Pseudopotentials from H to Rn. Phys. Rev. B 1998, 58, 3641-3662.
28. VandeVondele, J.; Hutter, J. Gaussian Basis Sets for Accurate Calculations on Molecular Systems in Gas and Condensed Phases. J. Chem. Phys. 2007, 127, 114105.
29. Voznyy, O.; Zhitomirsky, D.; Stadler, P.; Ning, Z.; Hoogland, S.; Sargent, E. H. A Charge-Orbital Balance Picture of Doping in Colloidal Quantum Dot Solids. ACS Nano 2012, 6, 8448-8455.