研究目的
Investigating the photoelectric and thermoelectric properties in biological Chlorophyll A field effect phototransistors (FEpTs) and understanding the role of Schottky contacts for efficient carrier injection.
研究成果
The demonstration of biological chlorophyll phototransistors with high photoresponsivity and the understanding of Schottky barrier height open new opportunities for employing biomaterials in future bioelectronics.
研究不足
The study is limited by the relatively slow photoresponse speed due to the indirect photoelectric conversion and the need for further optimization of device performance.
1：Experimental Design and Method Selection:
The study involves the fabrication of Chlorophyll A field effect phototransistors (FEpTs) with Au electrodes to investigate photoelectric and thermoelectric properties.
2：Sample Selection and Data Sources:
Chlorophyll A powder was extracted from Spinacia oleracea leaves using acetone as a solvent.
3：List of Experimental Equipment and Materials:
Highly doped n+ Si covered with a 300 nm thick SiO2 layer as gate electrode, Au source and drain electrodes, Chlorophyll A solution.
4：Experimental Procedures and Operational Workflow:
Devices were fabricated by spin-coating Chlorophyll A solution on the substrate, followed by electrical and photoelectrical measurements under 405 nm laser illumination.
5：Data Analysis Methods:
Thermionic emission theory and Arrehenius plot were used to analyze the Schottky barrier height.
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