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本文以单分散聚苯乙烯(Polystyrene,简写为PS)微球为模板颗粒,采用室温漂浮自组装法组装了PS opal模板,然后用液相沉积技术填充、去除模板制备了TiO2反opal膜,最后采用化学浴沉积法(Chemistry Bath Deposition,简写为CBD)在TiO2反opal膜上沉积CdS量子点。以CdS量子点敏化的TiO2反opal膜为光阳极组装太阳能电池并测试其光电性能。实验结果表明:CBD沉积CdS量子点次数对TiO2反opal膜电极的光电性能有影响。在本文实验条件下,当CBD沉积次数为5次时,CdS量子点敏化的TiO2反opal膜电极的太阳能电池具有最高光电转化效率。 相似文献
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通过改进既有的刚体转动实验仪,研究了变转动惯量情况下的刚体转动定律,通过实验结果与理论值进行比较,发现二者在实验误差允许的范围内非常吻合。 相似文献
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利用对称性理论,分析了五次对称准晶的非线性弹性性质,计算了五次准晶的二个Laue类所有的三阶弹性常数,结果表明Laue 11(55)具有72个独立三阶弹性常数(12个属于声子场,10个属于相位子场,24个属于声子一声子相位子耦合场,26个属于声子相位子相位子耦合场);Laue12(5m,52,^5m)具有43个独立的三阶弹性常数,(10个属于声子场,5个属于相位子场,12个属于声子声子相位子耦合场,16个属于声子-相位子-相位子耦合场),由此可知:五次准晶的(二阶声子)非线性弹性性质和与声子、相位子耦合有关的线性弹性性质都展现了准晶的各向异性。 相似文献
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Self-Assembling of Colloidal Particles Dispersed in Mixture of Ethanol and Water at the Air-Liquid Interface of Colloidal Suspension at Room Temperature 下载免费PDF全文
Self-assembling of colloidal particles dispersed in a mixture of ethanol and water at the air-liquid interface of the colloidal suspension at room temperature is investigated, and a method of rapidly assembling colloidal particles is proposed. By this method, a uniform colloidal crystal thin film over ten square centimeters in area can be fabricated in lOmin without special facilities and heating the suspension. SEM images and a normal incidence transmission spectrum of the sample show that the colloidal crystal film fabricated by this method is of high quality. In addition, this method is very suitable for fabricating colloidal crystal heterostructures. 相似文献