银原子链等离激元诱导的氢分解

来源 :第二届新型太阳能电池学术研讨会 | 被引量 : 0次 | 上传用户：fulinbo

【摘要】

：

局域表面等离激元使得贵金属纳米材料能够有效的驱动光化学反应,其原子尺度的机制仍然是很大的挑战.利用含时密度泛函理论,我们研究了在外加飞秒激光作用下,银原子链上实时的氢分解动力学.银原子链上等离激元诱导的电荷转移到氢分子的反键轨道,最终导致氢分解,结论与实验结果一致.增加激光强度和原子链长度可以增强分解反应,这种增强效应可以归因于更强的电子响应.定量的描述实时电子响应为等离激元诱导的反应提供了基本的

【作者】

：

严蕾丁子敬宋鹏王芳卫孟胜

【机构】

：

中国科学院物理所

【出处】

：

第二届新型太阳能电池学术研讨会

【发表日期】

：

2015年7期

【关键词】

：

实时动力学等离激元电荷转移

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

无机异质结基太阳电池中空穴电流的产生及动态表征

基于无机半导体纳米异质结光活性层的太阳电池具有高载流子迁移率、良好的环境稳定性和宽光谱吸收范围等优良特性,是一种具有很大应用前景的光伏器件.我们采用溶液法制备了由体型结晶Sb2S3光吸收材料和TiO2纳米阵列传导材料组成的无机体异质结基太阳电池(图1),利用动态光电流谱研究了电池电荷产生和传输动力学的特点.

会议

太阳电池空穴电流电荷传输动力学

Formation Mechanism of Freestanding CH3NH3PbI3 Functional Crystals: In Situ Transformation vs Dissol

To date, the formation mechanism of organolead halide CH3NH3PbI3 perovskites based on the efficient sequential reaction route has remained virtually unexplored.Such a synthetic method usually yields h

会议

formation mechanismCH3NH3PbI3 functional crystalsin situ transformationdissol

Investigation of Bi-metal and their compounds as catalysts for solar cells

Dye-sensitized solar cells (DSCs) have attracted remarkable attention due to their high efficiency and low cost.As an indispensible part of DSCs, the design of counter electrode(CE) plays a crucial ro

会议

Bi-metal compoundscatalystsdye-sensitized solar cellsperovskite solar cells

Growth, Patterning and Alignment of Organolead Iodide Perovskite Nanowires for Optoelectronic device

Organolead halide perovskites are becoming intriguing materials applied in optoelectronics.In the present work, organolead iodide perovskite (OIP) nanowires (NWs) have been fabricated by a one step se

会议

perovskitenanowiresevaporation-induced self-assemblycontrollable distribution

钙钛矿太阳能电池载流子特性及输运调控

钙钛矿太阳能电池因其优异的材料和器件性质,吸引了众多的研究兴趣.通过在薄膜沉积、器件结构优化以及界面设计等方面的努力,目前该电池已经获得了较高的光电转化效率,具有较好的商业应用前景.同时作为亚微米尺度的光伏器件,为理解该器件的电荷产生、分离、输运、收集等过程,利用光物理等手段对该电池进行研究也具有重要的物理意义.通过调控太阳能电池半导体载流子性质,进而调控器件电荷输运性质是半导体光伏器件研究和设计

会议

钙钛矿电池载流子调控电荷输运

Direct Observation of Long Electron-Hole Diffusion Distance beyond 1Micrometer in CH3NH3PbI3 Perovsk

In high performance perovskite based on CH3NH3PbI3, the formerly reported short charge diffusion distance seems a confliction to thick working layer in solar cell devices.We carried out a study on cha

会议

perovskitetime-resolved photoluminescencecharge diffusionphotovoltaicsolar c

Uncovering the Detailed Mechanism behind High Efficiency Perovskite Hybrid Solar Cells by Studying C

Organometal trihalide perovskite-based solid-state hybrid solar cells have attracted unexpected increasing interest because of the high efficiency (the record power conversion efficiency has been repo

会议

First-principle calculations and molecular dynamics simulations of transition metal compounds cataly

Recently, considerable attention have been paid to the novel dye-sensitized solar cells (DSSCs), which are based on transition metal compounds (TMCs) catalysts.TMCs catalysts exhibiting Pt-like.cataly

会议

Dye-sensitized solar cellstransition metal compoundsfirst-principle density fu

Synthesis of transition metal oxides and their applications as multifunctional catalysts in solar ce

In recent years, biomass resources have attracted more attention due to their renewability and cleanliness.Anaerobic fermentation technology is an effective way to utilize effectively the biomass reso

会议

Transition metal oxidesmultifunctional catalystsanaerobic fermentationsolar c

有机金属卤化物钙钛矿光电材料的光致发光研究

本文利用纳秒时间分辨的光致发光研究了有机金属卤化物钙钛矿的代表物甲胺碘铅(CH3NH3PbI3)薄膜中光致激发态的动力学.激发光强度从约0.10至100微焦/平方厘米的范围内,自由载流子为主要的光致激发态.然而,在中等强度的光激发下(约为l至10微焦/平方厘米),光致激发态中有相当一部分的激子产生.在此强度的光激发下,光致发光主要来源于激子的复合.利用纳秒时间分辨的光致吸收动力学,估算出2微焦/平

会议

有机金属卤化物钙钛矿光致发光激子

银原子链等离激元诱导的氢分解

与本文相关的学术论文