研究目的
Investigating the photovoltaic performance of novel phenothiazine dyes with single or double cyanoacrylic acid acceptors for dye-sensitized solar cells.
研究成果
Phenothiazine dye with double cyanoacrylic acid acceptors exhibits superior photoelectric conversion efficiency due to improved light-harvesting ability and electron-injection efficiency, doubling the short-circuit current compared to its single acceptor counterpart.
研究不足
The study focuses on the comparison between dyes with single and double cyanoacrylic acid acceptors, potentially overlooking other structural variations that could influence photovoltaic performance.
1：Experimental Design and Method Selection:
Synthesis of phenothiazine dyes with single or double cyanoacrylic acid acceptors, sharing the same electron donor phenothiazine and the same 4-phenyl-2-(thiophen-2-yl)thiazole p-bridge. Investigation of their photophysical properties and photovoltaic performance.
2：Sample Selection and Data Sources:
Phenothiazine dyes T-1 and T-2 were synthesized and characterized by nuclear magnetic resonance spectra, mass spectra, absorption spectra, and fluorescence spectra.
3：List of Experimental Equipment and Materials:
Bruker Avance III 500 MHz for NMR, Waters Xevo Q-Tof Mass Spectrometer for MS, SHIMADZU UV2550 UV-vis spectrophotometer for absorption spectra, SHIMADZU RF-5301PC spectrofluorometer for fluorescence spectra.
4：Experimental Procedures and Operational Workflow:
Fabrication of DSSCs with TiO2 electrodes, immersion in dye solution, and assembly with Pt counter electrodes. Photovoltaic characterization under AM 1.5 G illumination.
5：5 G illumination.
Data Analysis Methods:
5. Data Analysis Methods: Cyclic voltammetry for energy levels, IPCE spectra for photon-to-electron conversion efficiency, and J-V curve analysis for photovoltaic performance.
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