Ultrasensitive solution-cast quantum dot photodetectors

Nature

Volumn 442, Issue 7099, 2006, Pages 180-183

  Konstantatos, Gerasimos ^a   Howard, Ian ^a   Fischer, Armin ^a   Hoogland, Sjoerd ^a   Clifford, Jason ^a   Klem, Ethan ^a   Levina, Larissa ^a   Sargent, Edward H ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

CRYSTAL STRUCTURE; EPITAXIAL GROWTH; OPTOELECTRONIC DEVICES; SEMICONDUCTING INDIUM GALLIUM ARSENIDE; SEMICONDUCTOR QUANTUM DOTS;

NANOCRYSTALS; NANOPARTICLES; QUANTUM SIZE EFFECT; ROOM TEMPERATURE;

INFRARED DETECTORS;

NANOCRYSTAL; NANOPARTICLE; QUANTUM DOT;

ELECTRONIC EQUIPMENT; PHOTOVOLTAIC SYSTEM;

ARTICLE; ELECTRODE; ENERGY ABSORPTION; PRIORITY JOURNAL; QUANTUM MECHANICS; QUANTUM THEORY; ROOM TEMPERATURE; SIGNAL DETECTION;

EID: 33746130812     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature04855     Document Type: Article

References (25)

1. Talapin, D. & Murray, C. B. PbSe nanocrystal solids for n- and p-channel thin film field-effect transistors. Science 310, 86-89 (2005).
2. Tessler, N., Medvedev, V., Kazes, M., Kan, S. & Banin, U. Efficient near-infrared polymer nanocrystal light-emitting diodes. Science 295, 1506-1508 (2002).
3. Konstantatos, G., Huang, C., Levina, L., Lu, Z. & Sargent, E. H. Efficient infrared electroluminescent devices using solution-processed colloidal quantum dots. Adv. Funct. Mater. 15, 1865-1869 (2005).
4. Hoogland, S. et al. A solution-processed 1.53 μm quantum dot laser with temperature-invariant emission wavelength. Opt. Express 14, 3273-3281 (2006).
5. McDonald, S. A. et al. Solution-processed PbS quantum dot infrared photodetectors and photovoltaics. Nature Mater. 4, 138-142 (2005).
6. Schödel, R. et al. A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way. Nature 419, 694-696 (2002).
7. Rawlings, S. et al. A radio galaxy at redshift 4.41. Nature 383, 502-505 (1996).
8. 2) allotrope of carbon. Nature 353, 149-153 (1991).
9. Walker, J. Tunable alkali halide lasers. Nature 256, 695 (1975).
10. Ettenberg, M. A little night vision. Adv. Imaging 20, 29-32 (2005).
11. Sargent, E. H. Infrared quantum dots. Adv. Mater. 17, 515-522 (2005).
12. Liml, Y. T. et al. Selection of quantum dot wavelengths for biomedical assays and imaging. Mol. Imaging 2, 50-64 (2003).
13. Kim, S. et al. Near-infrared fluorescent type II quantum dots for sentinel lymph node mapping. Nature Biotechnol. 22, 93-97 (2004).
14. Petritz, R. L. Theory of photoconductivity in semiconductor films. Phys. Rev. B 104, 1508-1516 (1956).
15. Carbone, A. & Mazzetti, P. Grain-boundary effects on photocurrent fluctuations in polycrystalline photoconductors. Phys. Rev. B 57, 2454-2460 (1998).
16. 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. 115, 8706-8715 (1993).
17. Yu, D., Wang, C. & Guyot-Sionnest, P. n-Type conducting CdSe nanocrystal solids. Science 300, 1277-1280 (2003).
18. Wessels, J. M. et al. Optical and electrical properties of three-dimensional interlinked gold nanoparticle assemblies. J. Am. Chem. Soc. 126, 3349-3356 (2004).
19. Leatherdale, C. A. et al. Photoconductivity in CdSe quantum dot solids. Phys. Rev. B 62, 2669-2680 (2000).
20. Jarosz, M. V., Porter, V. J., Fisher, B. R., Kastner, M. A. & Bawendi, M. G. Photoconductivity of treated CdSe quantum dot films exhibiting increased exciton ionization efficiency. Phys. Rev. B 70, 195327 (2004).
21. Oertel, D. C., Bawendi, M. G., Arango, A. C. & Bulovic, V. Photodetectors based on treated CdSe quantum-dot films. Appl. Phys. Lett. 87, 213505 (2005).
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. 15, 1844-1849 (2003).
23. Yu, D., Wang, C., Wehrenberg, B. L. & Guyot-Sionnest, P. Variable range hopping mechanism in semiconductor nanocrystal solids. Phys. Rev. Lett 92, 216802 (2004).
24. Rahada, R. H. & Minden, H. T. Photosensitization of PbS films. Phys. Rev. 102, 1258-1262 (1956).
25. Scher, H. Anomalous transit-time dispersion in amorphous solids. Phys. Rev. B 12, 2455-2477 (1975).