Name: harvesting solar energy by means of charge-separating nanocrystals and their solids
Uploaded: 2012-08-23T12:03:00
Description: Watch this Scientific Journal Video about Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids at JoVE.com

我们想承认博士菲利克斯卡斯特拉诺（BGSU）的意见和有价值的讨论和NR尼尔。我们非常感谢OBOR“重大网络”计划和博林格林州立大学的财政支持。部分支持这项工作是由美国国家科学基金会下奖CHE - 1112227。

1。合成硒化锌的核心纳米晶8 <ol><li> “地点7.0克ODA和一个磁性搅拌棒放入三颈烧瓶中。 </li><li>在一个单独的烧瓶中，结合0.063克Se和2.4毫升TOP，加入磁力搅拌棒。 TOP和硒的混合物应在真空下脱气30分钟。 </li><li>德加的官方发展援助的90分钟，在120°C下氩气流量，然后把宽的玻璃排气。 </li><li>热至300°C的官方发展援助，并注入硒的混合物。让温度返回到300℃。 </li><li> 1.0毫升的Et 2...

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R., Wang, X., Konstantatos, G., Debnath, R., Levina, L., Raabe, I., Nazeeruddin, M. K., Gratzel, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Depleted-Heterojunction+Colloidal+Quantum+Dot+Solar+Cells.">Depleted-Heterojunction Colloidal Quantum Dot Solar Cells.</a> ACS Nano. 4, 3374-3380 (2010).</li><li>Kinder, E., Moroz, P., Diederich, G., Johnson, A., Kirsanova, M., Nemchinov, A., O'Connor, T., Roth, D., Zamkov, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fabrication+of+All-Inorganic+Nanocrystal+Solids+through+Matrix+Encapsulation+of+Nanocrystal+Arrays.">Fabrication of All-Inorganic Nanocrystal Solids through Matrix Encapsulation of Nanocrystal Arrays.</a> J. Amer. Chem. Soc. 133, 20488-20499 (2011).</li><li>Davide, C. P., Liberato, M., Lucia, C. M., Stefan, K., Cinzia, G., Marinella, S., Angela, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Shape+and+Phase+Control+of+Colloidal+ZnSe+Nanocrystals.">Shape and Phase Control of Colloidal ZnSe Nanocrystals.</a> Chem. Mater. 17, 1296-1306 (2005).</li><li>Carbone, L., Nobile, C., de Giorgi, M., Sala, F. D., Morello, G., Pompa, P., Hytch, M., Snoeck, E., Fiore, A., Franchini, I. R., Nadasan, M., Silvestre, A. F., Chiodo, L., Kudera, S., Cingolani, R., Krahne, R., Manna, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Synthesis+and+Micrometer-Scale+Assembly+of+Colloidal+CdSe/CdS+Nanorods+Prepared+by+a+Seeded+Growth+Approach.">Synthesis and Micrometer-Scale Assembly of Colloidal CdSe/CdS Nanorods Prepared by a Seeded Growth Approach.</a> Nano Lett. 7, 2942-2950 (2007).</li><li>Habas, S. 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这项研究表明，如何可以被用来实现一个空间分离的光生电荷的无机纳米晶体的复合体系结构。特别是，这些复合材料的允许跨越两个域，然后可用来执行无论是光催化或光电功能的分配的收费的微调。例如，高效光催化剂，可如果供体和受体纳米晶域建立​​一个单一纳米粒子。在图5中示出这样的系统的能量。同时，堆叠供体和受体的纳米薄膜可以导致光伏材料。 <p class="jove_co...

<table border="1"><tbody><tr><td> 的试剂的名称 </td><td> 公司 </td><td> 目录编号 </td><td> 评论（可选） </td></tr><tr><td>十八胺（ODA），90％ </td><td>费舍尔</td><td> AC12932-0050 </td><td></td></tr><tr><td>硒（Se），200目</td><td> ACROS </td><td> AC19807-2500 </td><td></td></tr><tr><td>三正辛基（TOP），97％ </td><td> STREM </td><td> 15-6655 </td><td>空气敏感</td></tr><tr><td>二乙基锌（Et2Zn），10％（重量）。 </td><td> Aldrich公司</td><td> 22080 </td><td>易受空气污染，光敏感</td></tr><tr><td>甲醇，99.8％，无水</td><td> Aldrich公司</td><td> 179337 </td><td></td></tr><tr><td>甲苯，99.8％，无水</td><td> Aldrich公司</td><td> 244511 </td><td></td></tr><tr><td>三正-octylphosph的INE氧化物（TOPO），99％ </td><td> Aldrich公司</td><td> 223301 </td><td></td></tr><tr><td>正十八烷基膦酸（ODPA），98％ </td><td> PCI合成</td><td> 104224 </td><td></td></tr><tr><td>己基次膦酸（HPA），98％ </td><td> PCI合成</td><td> 4721-24-8 </td><td></td></tr><tr><td>氧化镉（CdO），99.99％ </td><td> Aldrich公司</td><td> 202894 </td><td></td></tr><tr><td>硫（S），99.999％ </td><td> ACROS </td><td> AC19993-0500 </td><td>强烈的气味</td></tr><tr><td> 11 - 巯基十一酸（MUA），95％的</td><td> Aldrich公司</td><td> 450561 </td><td></td></tr><tr><td>氢氧化钾（KOH） </td><td> ACROS </td><td> AC13406-0010 </td><td></td></tr><tr><td>氯仿</td><td> VWR </td><td> EM-CX1059-1 </td><td></td></tr><tr><td>氧化铅（PbO）的，99.999％ </td><td> Aldrich公司</td><td>32306-1KG </td><td></td></tr><tr><td> 1 - 十八碳烯（ODE），90％的</td><td> Aldrich公司</td><td> O806-25ML </td><td></td></tr><tr><td>油酸（OA），90％ </td><td> Aldrich公司</td><td> O1008-1G </td><td></td></tr><tr><td>双（三甲基甲硅烷基）硫醚（TMS），合成级</td><td> Aldrich公司</td><td> 283134-25G </td><td>对空气敏感，强烈的气味，高反应性</td></tr><tr><td>丙酮</td><td> EMD化学品</td><td> AX0118-2 </td><td></td></tr><tr><td>醋酸镉</td><td> ACROS </td><td> AC31713-5000 </td><td></td></tr><tr><td>硫化钠水合物（的Na 2 S·9H 2 O），98％ </td><td>阿法埃莎</td><td> CB1100945 </td><td>光敏感</td></tr><tr><td>溴化十六烷基三甲基铵（CTAB），99％的</td><td>西格玛</td><td> H6269-100G </td><td></td></tr><tr><td>油胺，70％; </td><td> Aldrich公司</td><td> O7805-5G </td><td></td></tr><tr><td>二苯醚</td><td>阿尔法（天津）化学有限公司</td><td> 101-84-8 </td><td></td></tr><tr><td> 1,2 - 十六烷</td><td> TCI </td><td> 6920-24-7 </td><td></td></tr><tr><td>铂（Ⅱ）乙酰丙酮化物，97％的</td><td> Aldrich公司</td><td> 282782-5G </td><td></td></tr><tr><td>异丙醇，99.8％，无水</td><td> ACROS </td><td> AC32696-0025 </td><td></td></tr><tr><td>四氯化钛（四氯化钛），99.9％ </td><td> Aldrich公司</td><td> 697079-25G </td><td>非常易受空气污染影响</td></tr><tr><td>二氧化钛，DSL 90T </td><td> DYESOL </td><td> DSL 90T </td><td></td></tr><tr><td>松油醇</td><td> MP生物医学</td><td> 98-55-5 </td><td></td></tr><tr><td> 3 - 巯基丙酸（MPA），99％的</td><td>阿法埃莎</td><td> A10435 </td><td>强烈的气味</td></tr><tr><td>辛烷，无水，99％ </td><td> Aldrich公司</td><td> 412236 </td><td></td></tr></tbody></table>

harvesting solar energy by means of charge-separating nanocrystals and their solids

交接不同的半导体材料，在一个单一的纳米复合材料提供新颖光电材料的发展，提供了优越的控制跨材料界面的空间分布的电荷载体的合成装置。这项研究表明，给体-受体纳米晶（NC）域在一个单一纳米粒子的组合可以导致实现高效的光催化1-5材料，而供体和受体，如纳米晶体薄膜的层状组装产生了光伏材料。 最初专注于复合无机纳米晶的合成，包括线性堆叠的ZnSe，CdS和PT领域，共同推动光诱导电荷分离。这些结构用于水在太阳辐射下的光催化性能的影响，从而导致在水溶液中的H 2气体的生产中。为了提高光致分离收费，纳米棒的形态使用源自电场的特性的线性梯度5。域间的能量，然后优化，以驱动光生电子朝向的Pt的催化位点，而排出孔的表面的ZnSe域牺牲再生（通过甲醇）。在这里，我们表明，唯一有效的方式来产生氢气是使用给电子配体，以钝化表面状态，通过调整在的半导体配体界面的能量水平对齐。稳定，高效的还原水所允许的事实，即它们的价带中的半导体域补空缺，防止精力充沛空穴从降解它由于这些配体。具体而言，我们表明，该孔的能量被转移到的配体部分，离开半导体域功能。这使我们能够返回整个纳米晶体的配体系统到正常状态，当配体的退化，通过简单地添加新鲜的配体系统4。 为了推动光伏电荷分离，我们使用了两三层实木复合硫化铅和TiO 2薄膜。在此配置中，光生电子被注入到TiO 2的，并随后由FTO电极，而空穴被引导到Au电极经由含PbS层6。发展后者，我们引入了纳米晶半导体矩阵封装的阵列 （SMENA）战略，允许粘接硫化铅纳米CdS半导体到周围的矩阵。作为一个结果，制成固体表现出优异的热稳定性，归因于异质外延结构的纳米晶体矩阵接口，和显示在原型太阳能电池7迫使捕光性能。

Watch this Scientific Journal Video about Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids at JoVE.com

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

一般的电荷分离半导体纳米复合材料的太阳能生产部署的发展战略。我们表明，装配在一个单一纳米粒子的几何形状引起的光催化功能，给体 - 受体纳米晶域，大量异质结的给体 - 受体纳米晶薄膜可用于光伏发电的能量转换。

通过电荷分离纳米晶及其固体收获太阳能

Conjoining different semiconductor materials in a single nano-composite provides synthetic means for the development of novel optoelectronic materials ...

Research

JoVE Journal

Engineering

Fabrication of Nano-engineered Transparent Conducting Oxides by Pulsed Laser Deposition

制备纳米设计的脉冲激光沉积透明导电氧化物

Nanosecond Pulsed  Laser Deposition (PLD) in the presence of a background gas allows the deposition  of metal oxides with tunable morphology, structure, ...

科研

工程学

Making Record-efficiency SnS Solar Cells by Thermal Evaporation and Atomic Layer Deposition

通过热蒸发和原子层沉积使记录效率的SnS太阳能电池

Tin sulfide (SnS) is a candidate absorber material for Earth-abundant, non-toxic solar cells. SnS offers easy phase control and rapid growth by congruent ...

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

灯光诱杀银纳米结构通过转移印花在氢化微晶硅太阳能电池集成

One of the potential applications of metal nanostructures is light trapping in solar cells, where unique optical properties of nanosized metals, commonly ...

Quantitative Hardness Measurement by Instrumented AFM-indentation

通过仪表AFM压痕硬度定量测量

In this work, a combination of amplitude-modulated non-contact atomic force microscopy and atomic force spectroscopy is applied for instrumented hardness ...

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

CH的单价阳离子兴奋剂<sub&gt; 3</sub&gt; NH<sub&gt; 3</sub&gt;碘化铅<sub&gt; 3</sub&gt;对钙钛矿型高效太阳能电池

Here, we demonstrate the incorporation of monovalent cation additives into CH3NH3PbI3 perovskite in order to adjust the optical, excitonic, and electrical ...

High Temperature Fabrication of Nanostructured Yttria-Stabilized-Zirconia (YSZ) Scaffolds by In Situ Carbon Templating Xerogels

High Temperature Fabrication of Nanostructured Yttria-Stabilized-Zirconia YSZ Scaffolds by In Situ Carbon Templating Xerogels

通过纳米氧化钇稳定的二氧化锆（YSZ）的支架的高温加工<em&gt;原位</em&gt;碳模板干凝胶

We demonstrate a method for the high temperature fabrication of porous, nanostructured yttria-stabilized-zirconia (YSZ, 8 mol% yttria - 92 mol% zirconia) ...

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells

定向定向 ZnO 纳米阵列及其在倒小分子太阳电池中的应用

This manuscript describes how to design and fabricate efficient inverted solar cells, which are based on a two-dimensional conjugated small molecule ...

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

玻璃 (ADG) 菲涅耳透镜对聚光光伏的效率和辐照点的室内实验评价

We present a method to characterize achromatic Fresnel lenses for photovoltaic applications. The achromatic doublet on glass (ADG) Fresnel lens is ...

An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter

用金纳米粒子-嵌入式膜过滤法选择性脱盐放射性碘阴离子的有效方法

Here, we demonstrate a detail protocol for the preparation of nanomaterials-embedded composite membranes and its application to the efficient and ...

Developing High Performance GaP/Si Heterojunction Solar Cells

研制高性能的 gap-硅异构太阳能电池

To improve the efficiency of Si-based solar cells beyond their Shockley-Queisser limit, the optimal path is to integrate them with III-V-based solar ...