Влияния времени синтеза наностержней ZnO на рекомбинационные процессы в сенсибилизированных красителем солнечных ячейках
Ключевые слова:
наностержень, рекомбинационные процессы, солнечные ячейки DSSCАннотация
Гидротермальным методом синтезированы массивы наностержней ZnO. Исследовано влияния времени синтеза на суммарную площадь поверхности наностержней на единичной площади подложки и на фотовольтаические характеристики сенсибилизированных красителем солнечных ячеек (DSSCs) на основе наностержней ZnO. Определенно оптимальное время синтеза массива наностержней с максимальной площадью поверхности. Исследовано влияния времени синтеза массива наностержней на рекомбинационные процессы в DSSC. Обнаружено, что с увеличением времени синтеза происходит увеличение скорости рекомбинация электронов на границе раздела ZnO/электролит и эффективного коэффициента диффузии электрона в наностержнях ZnO. Предложены возможные причины наблюдаемых явлений.
Библиографические ссылки
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5 Crossland E.J.W., Kamperman M., Nedelcu M., Ducati C., Wiesner U., Smilgies D.M., Toombes G.E.S., Hillmyer M.A., Ludwigs S., Steiner U., Snaith H.J. A bicontinuous double gyroid hybrid solar cell. // Nano Lett. – 2009. – V. 9. – P. 2807–2812.
6 Guldin S., Hüttner S., Kolle M., Welland M.E., Mller-Buschbaum P., Friend R.H., Steiner U., Tétreault N. Dye-sensitized solar cell based on a three-dimensional photonic crystal. // Nano Lett. – 2010. – V. 10. – P. 2303–2309.
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8 Nissfolk J., Fredin K., Hagfeldt A., Boschloo G. Recombination and transport processes in dye-sensitized solar cells inves-tigated under working conditions. // J. Phys. Chem. B. – 2006. – V. 110. – P. 17715–17718.
9 Grätzel M. Solar energy conversion by dye-sensitized photovoltaic cells. // Inorg. Chem. – 2005. – V. 44. – P. 6841–6851.
10 Grätzel M. Conversion of sunlight to electric power by nanocrystalline dye-sensitized solar cells. // J. Photochem. Photobiol. A. – 2004. – V. 164. – P. 3–14.
11 Baruah S., Dutta J. Hydrothermal growth of ZnO nanostructures // Sci. Technol. Adv. Mater. – 2009. – V. 10. – P. 013001.
12 Lamia Z. Sol–gel-deposited ZnO thin films // Materials Science and Engineering B. – 2010. –V. 174. – P. 18–30.
13 Skompska M., Zarebska K. Electrodeposition of ZnO Nanorod Arrays on Transparent Conducting Substrates // Electrochi¬mica Acta. – 2014. – V. 127. – P. 467–488.
14 Law M., Greene L.E., Yang P. Nanowire dye-sensitized solar cells. // Nature Materials. – 2005. – V. 4. – P. 455–459.
15 Gao Y. Solution-Derived ZnO Nanowire Array Film as Photoelectrode in Dye-Sensitized Solar Cells. // Crystal Growth and Design. – 2007. – V. 7, № 12. – P. 2467–2471.
16 Kaidashev E.M. et al. High electron mobility of epitaxial ZnO thin films on c-plane sapphire grown by multistep pulsed-laser deposition. // Applied Physics Letters. – 2003. – V. 82, № 22. – P. 3901–3903.
17 Hendry E. et al. Local field effects on electron transport in nanostructured TiO2 revealed by terahertz spectroscopy. // Nano Letters. – 2006. – V. 6, № 4. – P. 755–759.
18 Bisquert J. Theory of the Impedance of Electron Diffusion and Recombination in a Thin Layer. // J. Phys. Chem. B. – 2002. – V. 106, № 2. – P. 325–333.
19 Adachi M., Sakamoto M., Jiu J., Ogata Y., Isoda S. Determination of Parameters of Electron Transport in Dye-Sensitized Solar Cells Using Electrochemical Impedance Spectroscopy. // J. Phys. Chem. B. – 2006. – V. 110. – P. 13872–13880.
20 Kern R., Sastrawan R., Ferber J., Stangl R., Luther J. Modeling and interpretation of electrical impedance spectra of dye solar cells operated under open-circuit conditions. // Electrochimica Acta. – 2002. – V. 47. – P. 4213–4225.
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Опубликован
2016-09-15
Выпуск
Раздел
Физика конденсированного состояния и проблемы материаловедения. Нанонаука
