Engineering colloidal quantum dot solids within and beyond the mobility-invariant regime

Nature Communications

Volumn 5, Issue , 2014, Pages

  Zhitomirsky, David ^a   Voznyy, Oleksandr ^a   Levina, Larissa ^a   Hoogland, Sjoerd ^a   Kemp, Kyle W ^a   Ip, Alexander H ^a   Thon, Susanna M ^b   Sargent, Edward H ^a  

^a UNIVERSITY OF TORONTO   (Canada)

^b Johns Hopkins University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

QUANTUM DOT;

COLLOID; ELECTRONIC EQUIPMENT; ENGINEERING; QUANTUM MECHANICS;

ARTICLE; COLLOID; CONTROLLED STUDY; DENSITY; DIFFUSION; ENGINEERING; SOLID;

EID: 84942087419     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms4803     Document Type: Article

References (63)

1. Bakueva, L. et al. Size-tunable infrared (1000-1600 nm) electroluminescence from PbS quantum-dot nanocrystals in a semiconducting polymer. Appl. Phys. Lett. 82, 2895-2897 (2003).
2. 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. 15, 1844-1849 (2003).
3. Caruge, J. M., Halpert, J. E., Wood, V., Bulovic, V., Bawendi, M. G. Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers. Nat. Photon. 2, 247-250 (2008).
4. Sun, L. et al. Bright infrared quantum-dot light-emitting diodes through inter-dot spacing control. Nat. Nanotech. 7, 369-373 (2012).
5. Ip, A. H. et al. Hybrid passivated colloidal quantum dot solids. Nat. Nanotech. 7, 577-582 (2012).
6. Tang, J. et al. Quantum junction solar cells. Nano Lett. 12, 4889-4894 (2012).
7. Brown, P. R. et al. Improved current extraction from ZnO/PbS quantum dot heterojunction photovoltaics using a MoO3 interfacial layer. Nano Lett. 11, 2955-2961 (2011).
8. Ma, W., Luther, J. M., Zheng, H., Wu, Y., Alivisatos, A. P. Photovoltaic devices employing ternary PbSxSe1-x nanocrystals. Nano Lett. 9, 1699-1703 (2009).
9. Semonin, O. E. et al. Peak external photocurrent quantum efficiency exceeding 100% via MEG in a quantum dot solar cell. Science 334, 1530-1533 (2011).
10. Konstantatos, G. et al. Ultrasensitive solution-cast quantum dot photodetectors. Nature 442, 180-183 (2006).
11. Keuleyan, S., Lhuillier, E., Brajuskovic, V., Guyot-Sionnest, P. Mid-infrared HgTe colloidal quantum dot photodetectors. Nat. Photon. 5, 489-493 (2011).
12. Ning, Z. et al. Graded doping for enhanced colloidal quantum dot photovoltaics. Adv. Mater. 25, 1719-1723 (2013).
13. Lan, X. et al. Self-assembled, nanowire network electrodes for depleted bulk heterojunction solar cells. Adv. Mater. 25, 1769-1773 (2013).
14. Bae, W. K. et al. Highly effective surface passivation of PbSe quantum dots through reaction with molecular chlorine. J. Am. Chem. Soc. 134, 20160-20168 (2012).
15. Tang, J. et al. Colloidal-quantum-dot photovoltaics using atomic-ligand passivation. Nat. Mater. 10, 765-771 (2011).
16. Zhitomirsky, D. et al. Colloidal quantum dot photovoltaics: the effect of polydispersity. Nano Lett. 12, 1007-1012 (2012).
17. Erslev, P. T. et al. Sharp exponential band tails in highly disordered lead sulfide quantum dot arrays. Phys. Rev. B 86, 155313 (2012).
18. Kramer, I. J. et al. Ordered nanopillar structured electrodes for depleted bulk heterojunction colloidal quantum dot solar cells. Adv. Mater. 24, 2315-2319 (2012).
19. Gao, J. et al. n-Type transition metal oxide as a hole extraction layer in PbS quantum dot solar cells. Nano Lett. 11, 3263-3266 (2011).
20. Talapin, D. V., Lee, J. S., Kovalenko, M. V., Shevchenko, E. V. Prospects of colloidal nanocrystals for electronic and optoelectronic applications. Chem. Rev. 110, 389-458 (2010).
21. Talapin, D. V., Murray, C. B. PbSe nanocrystal solids for n-and p-channel thin film field-effect transistors. Science 310, 86-89 (2005).
22. Talgorn, E. et al. Unity quantum yield of photogenerated charges and band-like transport in quantum-dot solids. Nat. Nanotech. 6, 733-739 (2011).
23. Choi, J.-H. et al. Bandlike transport in strongly coupled and doped quantum dot solids: a route to high-performance thin-film electronics. Nano Lett. 12, 2631-2638 (2012).
24. Zhitomirsky, D. et al. N-type colloidal-quantum-dot solids for photovoltaics. Adv. Mater. 24, 6181-6185 (2012).
25. Voznyy, O. et al. A charge-orbital balance picture of doping in colloidal quantum dot solids. ACS Nano 6, 8448-8455 (2012).
26. Engel, J. H., Surendranath, Y., Alivisatos, A. P. Controlled chemical doping of semiconductor nanocrystals using redox buffers. J. Am. Chem. Soc. 134, 13200-13203 (2012).
27. Guyot-Sionnest, P. Electrical transport in colloidal quantum dot films. J. Phys. Chem. Lett. 3, 1169-1175 (2012).
28. Gao, J., Johnson, J. C. Charge trapping in bright and dark states of coupled PbS quantum dot films. ACS Nano 6, 3292-3303 (2012).
29. Chung, D. S. et al. Low voltage, hysteresis free, and high mobility transistors from all-inorganic colloidal nanocrystals. Nano Lett. 12, 1813-1820 (2012).
30. Lee, J.-S., Kovalenko, M. V., Huang, J., Chung, D. S., Talapin, D. V. Band-like transport, high electron mobility and high photoconductivity in all-inorganic nanocrystal arrays. Nat. Nanotech. 6, 348-352 (2011).
31. Gao, Y. et al. Photoconductivity of PbSe quantum-dot solids: dependence on ligand anchor group and length. ACS Nano 6, 9606-9614 (2012).
32. Kramer, I. J., Sargent, E. H. Colloidal quantum dot photovoltaics: a path forward. ACS Nano 5, 8506-8514 (2011).
33. Ning, Z. et al. All-inorganic colloidal quantum dot photovoltaics employing solution-phase halide passivation. Adv. Mater. 24, 6295-6299 (2012).
34. Stadler, P. et al. Joint mapping of mobility and trap density in colloidal quantum dot solids. ACS Nano 7, 5757-5762 (2013).
35. Zhitomirsky, D., Voznyy, O., Hoogland, S., Sargent, E. H. Measuring charge carrier diffusion in coupled colloidal quantum dot solids. ACS Nano 7, 5282-5290 (2013).
36. Moroz, P. et al. Suppressed carrier scattering in CdS-encapsulated PbS nanocrystal films. ACS Nano 7, 6964-6977 (2013).
37. Bozyigit, D., Volk, S., Yarema, O., Wood, V. Quantification of deep traps in nanocrystal solids, their electronic properties, and their influence on device behavior. Nano Lett. 13, 5284-5288 (2013).
38. Hartmann, L. et al. Quenching dynamics in CdSe nanoparticles: surface-induced defects upon dilution. ACS Nano 6, 9033-9041 (2012).
39. Pattantyus-Abraham, A. G. et al. Depleted-heterojunction colloidal quantum dot solar cells. ACS Nano 4, 3374-3380 (2010).
40. Johnston, K. W. et al. Efficient Schottky-quantum-dot photovoltaics: the roles of depletion, drift, and diffusion. Appl. Phys. Lett. 92, 122111-122113 (2008).
41. Burgelman, M., Nollet, P., Degrave, S. Modelling polycrystalline semiconductor solar cells. Thin Solid Films 361-362, 527-532 (2000).
42. Burgelman, M., Verschraegen, J., Degrave, S., Nollet, P. Modeling thin-film PV devices. Prog. Photovolt. Res. Appl. 12, 143-153 (2004).
43. Bang, J. et al. ZnTe/ZnSe (core/shell) type-II quantum dots: their optical and photovoltaic properties. Chem. Mater. 22, 233-240 (2009).
44. Htoon, H. et al. Highly emissive multiexcitons in steady-state photoluminescence of individual 'giant' CdSe/CdS core/shell nanocrystals. Nano Lett. 10, 2401-2407 (2010).
45. Peng, H., Song, J.-H., Kanatzidis, M. G., Freeman, A. J. Electronic structure and transport properties of doped PbSe. Phys. Rev. B 84, 125207 (2011).
46. Voznyy, O., Thon, S. M., Ip, A. H., Sargent, E. H. Dynamic trap formation and elimination in colloidal quantum dots. J. Phys. Chem. Lett. 4, 987-992 (2013).
47. Lany, S., Zunger, A. Intrinsic DX centers in ternary chalcopyrite semiconductors. Phys. Rev. Lett. 100, 016401 (2008).
48. Brovelli, S., Galland, C., Viswanatha, R., Klimov, V. I. Tuning radiative recombination in Cu-doped nanocrystals via electrochemical control of surface trapping. Nano Lett. 12, 4372-4379 (2012).
49. Mocatta, D. et al. Heavily doped semiconductor nanocrystal quantum dots. Science 332, 77-81 (2011).
50. Gunawan, A. A., Mkhoyan, K. A., Wills, A. W., Thomas, M. G., Norris, D. J. Imaging 'invisible' dopant atoms in semiconductor nanocrystals. Nano Lett. 11, 5553-5557 (2011).
51. Liu, Y. et al. Robust, functional nanocrystal solids by infilling with atomic layer deposition. Nano Lett. 11, 5349-5355 (2011).
52. Kinder, E. et al. Fabrication of all-inorganic nanocrystal solids through matrix encapsulation of nanocrystal arrays. J. Am. Chem. Soc. 133, 20488-20499 (2011).
53. Koleilat, G. I. et al. Efficient, stable infrared photovoltaics based on solutioncast colloidal quantum dots. ACS Nano 2, 833-840 (2008).
54. Anderson, N. C., Owen, J. S. Soluble, chloride-terminated CdSe nanocrystals: ligand exchange monitored by 1H and 31P NMR spectroscopy. Chem. Mater. 25, 69-76 (2012).
55. Liu, D., Snee, P. T. Water-soluble semiconductor nanocrystals cap exchanged with metalated ligands. ACS Nano 5, 546-550 (2010).
56. Kovalenko, M. V., Scheele, M., Talapin, D. V. Colloidal nanocrystals with molecular metal chalcogenide surface ligands. Science 324, 1417-1420 (2009).
57. Fischer, A. et al. Directly deposited quantum dot solids using a colloidally stable nanoparticle ink. Adv. Mater. 25, 5742-5749 (2013).
58. Giansante, C. et al. Surface chemistry of arenethiolate-capped PbS quantum dots and application as colloidally stable photovoltaic ink. Thin Solid Films doi:10.1016/j.tsf.2013.10.060
59. Maraghechi, P. et al. The donor-supply electrode enhances performance in colloidal quantum dot solar cells. ACS Nano 7, 6111-6116 (2013).
60. Stranks, S. D. et al. Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber. Science 342, 341-344 (2013).
61. Chirila, A. et al. Potassium-induced surface modification of Cu(In,Ga)Se2 thin films for high-efficiency solar cells. Nat. Mater. 12, 1107-1111 (2013).
62. Todorov, T. K. et al. Beyond 11% efficiency: characteristics of state-of-the-art Cu2ZnSn(S,Se)4 solar cells. Adv. Energy Mater. 3, 34-38 (2013).
63. Vandewal, K., Tvingstedt, K., Gadisa, A., Inganas, O., Manca, J. V. On the origin of the open-circuit voltage of polymer-fullerene solar cells. Nat. Mater. 8, 904-909 (2009).