Results 21 to 30 of about 14,977 (168)

Spectral analysis and application of photoelectric characteristics in bacteriorhodopsin(细菌视紫红质蛋白的光谱分析与光电特性应用)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2004
细菌视紫红质是一种具有光驱动质于泵功能的跨膜蛋白,迄今为止己被当作光合作用、质子泵和七螺旋跨膜的受体模型进行研究.现代生物物理学的发展为研究细菌视紫红质的结构和功能提供了多种有效的方法和手段,目前已采用了博立叶红外光谱、共振拉曼光谱、核磁共振与实时振动光谱等多种分析方法来研究它的光电特性.细菌视紫红质具有较强的光敏感性,能产生光电信号,可进行快速的光化学反应等性质,这些特性已在众多科学领域得到应用并取得了突破性进展.另外,细菌视紫红质在光致色变、瞬态光电响应和非线性光学等性能上都具有良好的应用前景.
XUXiao-hong(徐晓红), WUMin(吴敏)
doaj   +1 more source

Triboelectric Nanogenerator Structure Designs and Mechanical Energy Harvesting Applications [PDF]

open access: yes, 2014
随着环境污染、能源危机等社会问题的加剧,发展新型、高效且能够直接从环境中收集能量的新能源技术成为当今科学技术发展的一个重要课题。在各式各样的能量来源中,机械能由于其广泛存在于日常生活环境中,已经成为最受人们关注的能源之一。基于上述背景,纳米发电机——一种利用纳米材料和纳米结构收集机械能并转化成电能的新技术——于2006年被美国佐治亚理工学院王中林院士课题组首次提出,并快速发展成为一种高效且具有广泛实际应用前景的新能源技术。近年来,随着纳米发电机技术的发展,该领域的一个重要分支 ...
谢燕楠
core  

From Molecular Motion to Macroscopic Function: Tailoring Tetraarylethylene Supramolecular Architectures for Aggregation‐Induced Emission and Wave Absorption

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Integrating light emission and electromagnetic wave (EMW) absorption into a single material opens up possibilities for multienvironmental applications. Herein, we propose a novel “molecular engineering‐pyrolysis conversion” strategy to construct a bifunctional system with tunable photoluminescence and efficient EMW absorption performance.
Renjie Wang   +7 more
wiley   +1 more source

Synthesis and Properties of Self-healing Polymers and Electrically Conductive Composites Based on Hydrogen-bonding [PDF]

open access: yes, 2015
通过模仿生物体自愈合的特性,人工合成可自行感知和修复损伤的聚合物材料是一项富有深远意义的研究。目前聚合物材料在加工和使用过程中容易受到各种外界因素的破坏并产生难以监测的微裂纹,而这些微裂纹正是材料性能退化的起点。作为一种新颖的智能仿生材料,自修复聚合物能够感知并修复这类损伤,避免材料受到进一步破坏,延长材料使用寿命,消除安全隐患,节约维修成本。然而,目前研究的自修复高分子材料大多为绝缘体,使得其在导电领域中的应用受到限制。随着导电高分子材料在电子器件、传感器、能源、信息、航空等领域的广泛应用 ...
谢婷婉
core  

A Dual‐Strategy of Iodine Doping and Electrolyte Additive Enabling Fast Reaction Kinetics and Robust Interface for Li‐Se Batteries

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Lithium‐selenium (Li‐Se) batteries have attracted considerable attention due to their high theoretical specific capacity and the intrinsically good electronic conductivity of selenium. Nevertheless, low active‐material utilization, parasitic side reactions, and sluggish reaction kinetics hinder their practical application.
Yanan Fu   +8 more
wiley   +1 more source

Growth of HfO2 thin film by Remote Plasma Atomic Layer Deposition and the properties of HfO2/Ge interface [PDF]

open access: yes, 2016
随着器件等比例缩小难度和成本的不断增加,以Si作为沟道材料SiO2作为栅介质的传统CMOS发展接近物理极限,高K介质HfO2栅高迁移率Ge沟道MOSFET成为未来CMOS集成电路技术发展的潜在选择之一。然而metal/HfO2/Ge结构MOS器件存在界面态密度高、栅极漏电流大等问题,因此研究高质量HfO2薄膜生长技术和减少HfO2/Ge界面态是提高metal/HfO2/GeMOS器件性能的有效途径之一。 本文采用远程等离子体辅助原子层沉积法(RP-ALD)生长HfO2薄膜,优化了HfO2薄膜的生长(温度)
池晓伟
core  

Edge‐Fluorinated Flower‐Like Porous Graphene Microspheres With Enlarged Interlayer Spacing for High‐Performance Potassium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The utilization of carbonaceous anodes in electrochemical systems, particularly potassium‐ion batteries (PIBs), remains hindered by sluggish kinetics and modest capacities, which are caused by the intrinsic ion storage mechanisms and constrained interlayer spacings.
HaiSong Chen   +7 more
wiley   +1 more source

MXene‐Based Materials Contribute Better Alkali Metal–Chalcogen Batteries: Progress, Challenges, and Perspectives

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Alkali metal–chalcogen batteries (AMCBs) are one of the most promising next‐generation energy storage systems because of their high energy density and reasonably low cost. However, the practical application of AMCBs is severely hindered by the volume expansion of the chalcogen cathode, the shuttle effect of polychalcogenides, and unstable ...
Yong Liu   +11 more
wiley   +1 more source

Study of Ammonia and Humidity Sensor Based on Conductive Polymers and Its Composites [PDF]

open access: yes, 2016
环境中的气体和湿度条件会影响人们的生活和工业生产,因而需要研制响应灵敏度高、可靠性优异、长期稳定性好的气体和湿度传感器来进行检测。目前的气体和湿度传感器主要是以金属氧化物和有机高分子为敏感材料。然而基于金属氧化物的传感器工作温度高,基于有机材料的传感器稳定性较差,均无法满足低功耗、低维护成本传感系统的要求。因此本文通过具有p-n异质结的金属氧化物/交联导电聚合物复合材料作为室温气体传感器的敏感材料提高其传感性能;另外以新型的聚电解质--绿色无污染的聚离子液体--为湿度传感器的敏感材料,制得了全湿度范围 ...
王玲玲
core  

Recent Advances in Piezocatalysis and Piezo‐Photocatalysis in Energy and Environment: Materials, Design, and Applications

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou   +5 more
wiley   +1 more source

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