Self-Assembly of ZnO-Nanorods and Its Performance in Quasi Solid Dye Sensitized Solar Cells

International Conference on Energy Sciences 2016

能源学;物理学

Aprilia, A.^1 ; Erdienzy, A.^1 ; Bahtiar, A.^1 ; Safriani, L.^1 ; Syakir, N.^1 ; Risdiana^1 ; Saragi, T.^1 ; Hidayat, S.^1 ; Fitrilawati^1 ; Hidayat, R.^2 ; Siregar, R.E.^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, JL. Raya Bandung-Sumedang KM 21., Jatinangor, West Java

45363, Indonesia^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, West Java

40132, Indonesia^2

关键词: Average grain size;    Current voltage measurement;    Optimum conditions;    Photogenerated electrons;    Polymer gel electrolytes;    Screen printing methods;    Self-assembly method;    UV-vis spectrometer;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/877/1/012023/pdf
DOI  :  10.1088/1742-6596/877/1/012023

来源: IOP

【 摘 要 】

Zinc oxide (ZnO) nanorods (NRs) were successfully prepared by self-assembly methods using zinc nitrate hexahydrate and hexamethylenetetramine as raw materials. ZnO-NRs were grown on FTO/ZnO seed layer and to enhance dye adsorption it was continued by deposition of titania (TiO2) paste by screen printing method. Deposition time of ZnO-NRs were varied, for 120, 150 and 180 minutes and subsequently stacked with one layer of TiO2mesoporous. The resulting heterojunction layers of FTO/ZnO-Nrs/TiO2was then applied as a photoanode in quasi-solid dye sensitized solar cell (QS- DSSC) with polymer gel electrolyte (PGE) as a hole conductor. UV-Vis spectrometer was used to investigate the changes of dye adsorption in photoanode with/without inserting titania mesoporous. Characterizations of scanning electron microscopy (SEM) and X-ray diffraction was carried out and the results shows that increasing the deposition time produces a smaller average grain size, diameter and denser layer of ZnO-nanorods. From current-voltage measurement, higher efficiency (η = 2.53%) was obtained for 120 min ZnO nanorods with short circuit current density (Jsc) of 2.84 mA/cm2and open circuit voltage (Voc) of 0.7 V. The combination of TiO2and ZnO-NRs shows a better performance in solar cells characteristics due to increases of dye adsorption on photoanode and high photogenerated electron transport rate. This work emphasizes an optimum condition of ZnO-NRs in combination with TiO2mesoporous as an alternative photoanode in QS-DSSC.