1 Nature 2013 Vol: 495(7440):180-181. DOI: 10.1038/nature11961

Materials science: Porosity in a single crystal.

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Figures
Figure 1: Mesoporous single crystals. This micrograph shows some of Crossland and colleagues' mesoporous single crystals of titanium dioxide3, which might open up applications in optoelectronics. Scale bar, 5 micrometres.REF. 3
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References
  1. O'Regan, B.; Grätzel, M. Nature 353, 737-740 (1991) .
    • . . . The discovery that nanoparticles of metal-oxide semiconductors can be used to make highly efficient solar-cell devices using low-cost processes has attracted a tremendous research effort worldwide1, 2 . . .
  2. Grätzel, M. Acc. Chem. Res. 42, 1788-1798 (2009) .
    • . . . The discovery that nanoparticles of metal-oxide semiconductors can be used to make highly efficient solar-cell devices using low-cost processes has attracted a tremendous research effort worldwide1, 2 . . .
  3. Crossland, E. J. W. Nature 495, 215-219 (2013) .
  4. O'Regan, B. C.; Durrant, J. R.; Sommeling, P. M.; Bakker N. J. J. Phys. Chem. C 111, 14001-14010 (2007) .
    • . . . Crossland et al. prepared a 'sacrificial' template structure from close-packed arrays of silica beads, then treated it with titanium tetrachloride to seed it with TiO2 nuclei4 . . .
  5. Yang, H. G. Nature 453, 638-641 (2008) .
    • . . . The template was then exposed to a solution of titanium tetrafluoride, using a proven recipe5 for synthesizing TiO2 in its 'anatase' crystal form . . .
  6. Lee, M. M.; Teuscher, J.; Miyasaka, T.; Murakami, T. N.; Snaith, H. J. Science 338, 643-647 (2012) .
    • . . . These cells achieved a record light-to-electricity power conversion efficiency of 7.2%, although this was partly as a result of using a state-of-the-art light sensitizer6 . . .