ABSTRACT
We report the deposition of conformal thin layers of 10–50 nm thickness from II-VI quantum dot suspensions on ZnO nanowire substrates. Smooth polycrystalline films of high electronic quality can be obtained from CdSe quantum dots after annealing at moderate temperatures. The electronic properties are adequate for detector and solar cell applications. The growth and annealing temperatures permit deposition on light-weight and flexible substrates. Some elemental diffusion of Se across the CdSe/ZnO interface occurs in the film formation. A comparison with CdS/ZnO junctions indicates that the low Se diffusion rates are essential for efficient charge transfer.
This research was supported by ONAMI, the Oregon Nano- and Microtechnologies Institute and DOE-BES under grant number DE-FG02–07ER46406. Useful discussions with Dr. S. Rouminov are gratefully acknowledged.
- 1. K. Ernst, A. Belaidi, and R. Könenkamp, Semicond. Sci. Technol. 18, 475 (2003). https://doi.org/10.1088/0268-1242/18/6/314, Google ScholarCrossref
- 2. C. Levy-Clement, A. Katty, S. Bastide, F. Zenia, I. Mora, and V. Munoz-Sanjose, Physica E 14, 229 (2002). https://doi.org/10.1016/S1386-9477(02)00390-9, Google ScholarCrossref
- 3. A. Nadarajah, Robert C. Word, Kaitlyn VanSant, and R. Könenkamp, Phys. Status Solidi B 245, 1834 (2008). https://doi.org/10.1002/pssb.200779546, Google ScholarCrossref
- 4. D. Kieven, T. Dittrich, A. Belaidi, J. Tornow, K. Schwarzburg, N. Allsop, and M. Lux-Steiner, Appl. Phys. Lett. 92, 153107 (2008). https://doi.org/10.1063/1.2909576, Google ScholarScitation
- 5. K. S. Leschkies, R. Divakar, J. Basu, E. Enache-Pommer, J. E. Boercker, C. Barry Carter, U. R. Kortshagen, D. J. Norris, and E. S. Aydil, Nano Lett. 7, 1793 (2007). https://doi.org/10.1021/nl070430o, Google ScholarCrossref, ISI
- 6. R. Könenkamp, Series on Photoconversion of Solar Energy (Imperial College, London, 2008), Vol. 3, Chap. 6. Google Scholar
- 7. M. Leskelä and M. Ritala, Thin Solid Films 409, 138 (2002). https://doi.org/10.1016/S0040-6090(02)00117-7, Google ScholarCrossref, ISI
- 8. N. A. Allsop, A. Schönmann, H. -J. Muffler, M. Bär, M. C. Lux-Steiner, and Ch. -H. Fischer, Prog. Photovoltaics 13, 607 (2005). https://doi.org/10.1002/pip.655, Google ScholarCrossref, ISI
- 9. S. Lindroos and M. Leskelä, in Solution Processing of Inorganic Materials, edited by D. B. Mitzi (Wiley, Hoboken, NJ, 2009), Chap. 8. Google Scholar
- 10. R. Könenkamp, K. Boedecker, M. Poschenrieder, F. Zenia, C. Levi-Clement, and S. Wagner, Appl. Phys. Lett. 77, 2575 (2000). https://doi.org/10.1063/1.1319187, Google ScholarScitation
- 11. H. R. Moutinho, R. G. Dhere, M. M. Al-Jassim, D. H. Levi, and L. L. Kazmerski, J. Vac. Sci. Technol. A 17, 1793 (1999). https://doi.org/10.1116/1.581892, Google ScholarCrossref
- 12. B. Seipel, A. Nadarajah, B. Wutzke, and R. Könenkamp, Mater. Lett. 63, 736 (2009). https://doi.org/10.1016/j.matlet.2008.12.037, Google ScholarCrossref
- 13. L. Dloczik, R. Engelhardt, K. Ernst K, M. C. Lux-Steiner, and R. Könenkamp, Sens. Actuators B 84, 33 (2002). https://doi.org/10.1016/S0925-4005(02)00007-2, Google ScholarCrossref, ISI
Please Note: The number of views represents the full text views from December 2016 to date. Article views prior to December 2016 are not included.
