研究目的
Investigating the morphological control of TiO2 nanocrystals through solvothermal synthesis for enhancing the efficiency of dye-sensitized solar cells.
研究成果
The solvothermal synthesis using isopropyl alcohol produced well-dispersed, rod-shaped TiO2 nanocrystals (TIPA3) with the highest power conversion efficiency in DSSCs due to optimal dye loading and light-harvesting capacity. The method's simplicity and effectiveness in controlling TiO2 morphology highlight its potential for solar cell applications.
研究不足
The study is limited by the specific alcohols used and the solvothermal conditions, which may not cover all possible morphologies and crystallinities of TiO2 nanocrystals.
1：Experimental Design and Method Selection:
The anatase TiO2 nanocrystals were prepared via a solvothermal method using different alcohols as solvents.
2：Sample Selection and Data Sources:
Titanium (IV) isopropoxide was used as a precursor with acetic acid in various alcohols.
3：List of Experimental Equipment and Materials:
Instruments included transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and high-resolution transmission electron microscopy.
4：Experimental Procedures and Operational Workflow:
The solution was heated in a Teflon autoclave, centrifuged, washed, and dried to obtain TiO2 powders.
5：Data Analysis Methods:
The photovoltaic performance was analyzed using current-voltage characteristics and electrochemical impedance spectroscopy.
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