A chemically sintered and binder-free paste of TiO<sub>2</sub> nanoparticles (NPs) was prepared using a binary-liquid mixture of 1-octanol and CCl<sub>4</sub>. The 1:1 (v/v) complex of CCl<sub>4</sub> and 1-octanol ...
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https://www.riss.kr/link?id=A108517753
2022
English
SCIE,SCOPUS
학술저널
453-461(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
A chemically sintered and binder-free paste of TiO<sub>2</sub> nanoparticles (NPs) was prepared using a binary-liquid mixture of 1-octanol and CCl<sub>4</sub>. The 1:1 (v/v) complex of CCl<sub>4</sub> and 1-octanol ...
A chemically sintered and binder-free paste of TiO<sub>2</sub> nanoparticles (NPs) was prepared using a binary-liquid mixture of 1-octanol and CCl<sub>4</sub>. The 1:1 (v/v) complex of CCl<sub>4</sub> and 1-octanol easily interacted chemically with the TiO<sub>2</sub> NPs and induced the formation of a highly viscous paste. The as-prepared binary-liquid paste (P<sub>BL</sub>)-based TiO<sub>2</sub> film exhibited the complete removal of the binary-liquid and residuals with the subsequent low-temperature sintering (~150℃) and UV-O<sub>3</sub> treatment. This facilitated the fabrication of TiO<sub>2</sub> photoanodes for flexible dye-sensitized solar cells (f-DSSCs). For comparison purposes, pure 1-octanol-based TiO<sub>2</sub> paste (P<sub>O</sub>) with moderate viscosity was prepared. The P<sub>BL</sub>-based TiO<sub>2</sub> film exhibited strong adhesion and high mechanical stability with the conducting oxide coated glass and plastic substrates compared to the P<sub>O</sub>-based film. The corresponding low-temperature sintered P<sub>BL</sub>-based f-DSSC showed a power conversion efficiency (PCE) of 3.5%, while it was 2.0% for P<sub>O</sub>-based f-DSSC. The P<sub>BL</sub>-based low- and high-temperature (500℃) sintered glass-based rigid DSSCs exhibited the PCE of 6.0 and 6.3%, respectively, while this value was 7.1% for a 500℃ sintered rigid DSSC based on a commercial (or conventional) paste.
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