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| 與硅太陽能電池和染料敏化太陽能電池相比，量子點(diǎn)太陽能電池成本低、性能優(yōu)越、具有更廣闊的前景，而采用固態(tài)電解質(zhì)制備全固態(tài)量子點(diǎn)太陽能電池的研究更是太陽能電池的未來發(fā)展方向。如何改進(jìn)光電極的電子傳輸和固體電解質(zhì)的填充是提高電池性能的關(guān)鍵所在。本項(xiàng)目通過兩步陽極氧化法制備出TiO2納米管陣列作為電子的超快傳輸通道，首先采用連續(xù)離子層吸附與反應(yīng)法在TiO2納米管陣列表面沉積CdS核層量子點(diǎn)，通過離子置換法構(gòu)建核殼結(jié)構(gòu)量子點(diǎn)作敏化劑，然后通過電化學(xué)法在納米管中原位聚合PEDOT作為空穴的傳輸通道，制備出全固態(tài)核殼量子點(diǎn)敏化TiO2納米管陣列太陽能電池，并研究核殼量子點(diǎn)和PEDOT的制備條件對(duì)太陽能電池光吸收特性、電荷遷移特性以及光電轉(zhuǎn)換效率的影響，揭示TiO2納米管陣列/核殼量子點(diǎn)/PEDOT之間的電荷轉(zhuǎn)移與輸運(yùn)機(jī)制。本項(xiàng)目的研究成果對(duì)于新型太陽能電池微觀結(jié)構(gòu)的設(shè)計(jì)和研究具有重要的科學(xué)意義。 |
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3樓2014-01-16 16:09:53
phu_grassman
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★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
wqy8563: 金幣+100, 翻譯EPI+1, ★★★很有幫助, 先散100個(gè)，翻譯的不錯(cuò)。留著100吸引別人翻譯，放心，那一百我還給你加上 2014-01-16 16:08:56
wqy8563: 金幣+100, 翻譯EPI+1, ★★★很有幫助, 先散100個(gè)，翻譯的不錯(cuò)。留著100吸引別人翻譯，放心，那一百我還給你加上 2014-01-16 16:08:56
| Compared with the silicon solar cells and the dye sensitized solar cells, the quantum dot (QD) solar cells have the advantages of lower cost, better performance and wider applications, and one trend is to develop the all-solid-state QD solar cells with solid electrolytes. The key to the performance of solar cells lies in how to improve the electron transport of the photoelectrode and the filling of solid electrolytes. In this research, the two-step anodic oxidation method was utilized to prepare the TiO2 nanoarray as the ultrafast transmission channel for electrons, and CdS QDs were deposited on the nanoarrays by successive ionic layer adsorption and reaction process, followed by the formation of the core-shell QDs as the sensitizer with the ion replacement method. Then PEDOT, which acts as the transmission channel for holes, was prepared in the nanotubes by in-situ polymerization via the electrochemical process. The all-solid-state QD-sensitized TiO2 nanoarray solar cells were thus fabricated. Effects of the fabrication conditions for the core-shell QDs and PEDOTs were studied on the absorption properties, charge transfer and photoelectric conversion efficiency of the solar cells, and the mechanism for charge transfer and transport were revealed in the TiO2 nanoarrays/core-shell QDs/PEDOTs. This finding is of great scientific significance to the microstructure design and study of novel solar cells. |
2樓2014-01-16 15:45:11
shangchao800
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wqy8563: 金幣+20, ★有幫助, 謝謝你了 可能專業(yè)差別太大，翻譯的有瑕疵 2014-01-16 16:29:40
wqy8563: 金幣+40, ★★★很有幫助, 非常感謝 版主水平就是高 2014-01-17 08:41:06
wqy8563: 金幣+20, ★有幫助, 謝謝你了 可能專業(yè)差別太大，翻譯的有瑕疵 2014-01-16 16:29:40
wqy8563: 金幣+40, ★★★很有幫助, 非常感謝 版主水平就是高 2014-01-17 08:41:06
| With silicon solar cells and compared dye-sensitised solar cells, low cost, superior performance, quantum dot solar cells have broader prospects, with a solid electrolyte preparation solid-state quantum dot solar cells research but also the future development direction of solar cells. How to improve the electrode the electronic transmission of light and solid electrolyte filling is the key to improve the performance of the battery. The project is prepared by two-step anodic oxidation method of TiO2 nanotube arrays as electron super fast transport channel, first using the method of continuous ion adsorption and reaction in the deposition CdS on the surface of TiO2 nanotube arrays nuclear layer of quantum dots, quantum dot by ion exchange method to build a core-shell structure as a sensitizer, and then through electrochemical method in nanometer PEDOT GuanZhongYuan a polymerization as a hole transport channel, the preparation of the solid-state core-shell quantum dots sensitized TiO2 nanotube arrays of solar cells, and study the core-shell quantum dots and the preparation conditions of solar light absorption characteristics of PEDOT, charge transfer characteristics and the influence of the photoelectric conversion efficiency, reveal TiO2 nanotube array/core-shell quantum dots/PEDOT charge transfer between the transport mechanism. The objective of the research results to the design of the new type of solar cell microstructure and research has important scientific significance. |
4樓2014-01-16 16:25:36
shangchao800
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5樓2014-01-16 16:32:50
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