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Synthesis, characterization and design of a nanocrystal based photovoltaic device.

机译：基于纳米晶体的光伏器件的合成，表征和设计。

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Nanocomposites have shown promise as the active layer for photovoltaic energy conversion. Devices consisting of CdSe nanocrystals and semiconducting polymer, and devices consisting of C60 and semiconducting polymer have been recently investigated. This work will present the rational design, synthesis, fabrication and characterization of a nanocomposite photovoltaic device-containing Poly 3-hexylthiophene (P3HT), Cadmium Selenium (CdSe) nanocrystals, and C60. The use of these three components allows for a dedicated light harvester, CdSe nanocrystals, a dedicated hole transporter, P3HT, and a dedicated electron transporter, C60. Two primary premises were investigated in this work; first what effect the size of the nanocrystal would have on the efficiency of the devices and second would the addition of C 60 to a CdSe nanocrystal/semiconducting polymer device increase the efficiency of the devices. Three sizes of CdSe nanocrystals (30A, 45A, and 72A) were used in the photoactive layer. Five different composites were used for the photoactive layer ranging from 20% CdSe or C60 to 80% CdSe or C60 of each size of CdSe nanocrystal, while the percentage of P3HT was held constant at 20%. All of the composites were tested at 514 nm at 5 W/m2 and at the industry standard of AM 1.5 at 1000 W/m2 (1 sun). After all the results were analyzed, it was seen that with the addition of C60 only a small percentage of CdSe nanocrystals would be required to make an efficient device, thus making this device cost effective and with more research a viable new source of photovoltaic energy.
机译：纳米复合材料已显示出有望成为光伏能量转换的活性层。最近已经研究了由CdSe纳米晶体和半导体聚合物组成的器件，以及由C60和半导体聚合物组成的器件。这项工作将提出包含聚3-己基噻吩（P3HT），硒化镉（CdSe）纳米晶体和C60的纳米复合光伏器件的合理设计，合成，制造和表征。这三个组件的使用允许使用专用的光收集器CdSe纳米晶体，专用的空穴传输器P3HT和专用的电子传输器C60。在这项工作中调查了两个主要前提；首先，纳米晶体的尺寸将对器件的效率产生什么影响；其次，将C 60添加到CdSe纳米晶体/半导体聚合物器件中会提高器件的效率。在光敏层中使用了三种尺寸的CdSe纳米晶体（30A，45A和72A）。五种不同的复合材料用于光敏层，其大小分别为CdSe纳米晶体的20％CdSe或C60到80％CdSe或C60，而P3HT的百分比保持恒定在20％。所有复合材料均在514 nm下以5 W / m2的强度进行测试，并在AM 1.5的行业标准下以1000 W / m2（1个太阳）进行测试。在分析了所有结果之后，可以看出，添加C60只需少量的CdSe纳米晶体即可制成高效器件，从而使该器件具有成本效益，并且随着更多的研究成为可行的光伏新能源。

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