Materials science: Air-stable all-inorganic nanocrystal solar cells processed from solution

Science

Volumn 310, Issue 5747, 2005, Pages 462-465

  Gur, Ilan ^a,c   Fromer, Neil A ^a   Geier, Michael L ^c   Alivisatos, A Paul ^a,b  

^a LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c NONE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

PHOTOVOLTAIC EFFECTS; SOLAR CELLS; SOLUTIONS;

INORGANIC NANOCRYSTALS; PHOTOVOLTAIC DEVICES; POWER CONVERSION EFFICIENCIES; SPIN-CAST;

NANOSTRUCTURED MATERIALS;

NANOPARTICLE;

PHOTOVOLTAIC SYSTEM;

AIR; ARTICLE; COST BENEFIT ANALYSIS; CRYSTAL STRUCTURE; ELECTRIC POTENTIAL; MOLECULAR STABILITY; NONHUMAN; POWER SUPPLY; PRIORITY JOURNAL; PROCESS MODEL; SOLAR ENERGY;

EID: 27144558289     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1117908     Document Type: Article

References (29)

1. S. E. Shaheen, D. S. Ginley, G. E. Jabbour, MRS Bull. 30, 10 (2005).
2. A. P. Alivisatos, J. Phys. Chem. 100, 13226 (1996).
3. C. B. Murray, C. R. Kagan, M. G. Bawendi, Annu. Rev. Mater. Sci. 30, 545 (2000).
4. M. Shim, C. J. Wang, D. J. Morris, P. Guyot-Sionnest, MRS Bull. 26, 1005 (2001).
5. W. U. Huynh, J. J. Dittmer, A. P. Alivisatos, Science 295, 2425 (2002).
6. B. Q. Sun, H. J. Snaith, A. S. Dhoot, S. Westenhoff, N. C. Greenham, J. Appl. Phys. 97, 014914 (2005).
7. B. A. Gregg, M. C. Hanna, J. Appl. Phys. 93, 3605 (2003).
8. A. J. Nozik, Phys. E 14, 115 (2002).
9. J. A. Barker, C. M. Ramsdale, N. C. Greenham, Phys. Rev. B 67, 075205 (2003).
10. J. J. M. Halls et al., Nature 376, 498 (1995).
11. G. Yu, J. Gao, J. C. Hummelen, F. Wudl, A. J. Heeger, Science 270, 1789 (1995).
12. P. Peumans, V. Bulovic, S. R. Forrest, Appl. Phys. Lett. 76, 2650 (2000).
13. S. E. Shaheen et al., Appl. Phys. Lett. 78, 841 (2001).
14. K. M. Coakley, M. D. McGehee, Appl. Phys. Lett. 83, 3380 (2003).
15. S. Kim, B. Fisher, H. J. Eisler, M. Bawendi, J. Am. Chem. Soc. 125, 11466 (2003).
16. D. J. Milliron et al., Nature 430, 190 (2004).
17. D. S. Ginger, N. C. Greenham, J. Appl. Phys. 87, 1361 (2000).
18. N. Y. Morgan et al., Phys. Rev. B 66, 075339 (2002).
19. J. Heitmann et al., Phys. Rev. B 69, 195309 (2004).
20. Materials and methods are available as supporting material on Science Online.
21. Results presented are based on devices that use the standardized syntheses of CdTe and CdSe described above. Other syntheses have yielded slightly different results. For instance, devices with open-circuit voltages as high as 0.6 have been achieved by varying NC diameter; a thorough description of this dependence will be described elsewhere.
22. S. M. Sze, Physics of Semiconductor Devices (Wiley, New York, 1981).
23. A. L. Fahrenbruch, R. H. Bube, Fundamentals of Solar Cells (Academic Press, New York, 1983).
24. 2 AM1.5C conditions used in I-V comparisons. Increased leakage and recombination in the blend devices are likely responsible for this discrepancy, but further investigation is needed to fully understand this effect.
25. L. S. Li, J. T. Hu, W. D. Yang, A. P. Alivisatos, Nano Lett. 1, 349 (2001).
26. B. E. McCandless, L. V. Moulton, R. W. Birkmire, Prog. Photovoltaics 5, 249 (1997).
27. These ultrathin cells exhibit suboptimal absorptivity, with average optical density of ∼0.7. This assumes full back contact reflection such that incident light passes through the film twice.
28. Short-circuit currents obtained under simulated AM1.5G illumination were well matched with those obtained by integrating external quantum efficiency data with the true AM1.5G solar emission spectrum (20).
29. We thank A. Radenovic, K. Sivula, U. Bach, D. Milliron, J. Wang, and S. Laubach for research support and valuable discussion. Supported by the Director, Office of Energy Research, Office of Science, Division of Materials Sciences, of the U.S. Department of Energy under contract no. DE-AC02-O5CH11231. I.G. further acknowledges the National Science Foundation for support under a Graduate Research Fellowship. Dedicated in loving memory to Benjamin Boussert, Giulia Adesso, and Jason Choy.