【摘 要】
：
The broad emission and high photolumines-cence quantum yield of self-trapped exciton(STE)radiative recombination emitters make them an ideal solution for single-substrate,white,solid-state lighting sources.Unlike impurities and defects in semiconductors,t
【机 构】
：
Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices,Hubei University of Art
论文部分内容阅读
The broad emission and high photolumines-cence quantum yield of self-trapped exciton(STE)radiative recombination emitters make them an ideal solution for single-substrate,white,solid-state lighting sources.Unlike impurities and defects in semiconductors,the formation of STEs requires a lattice distortion,along with strong electron-phonon coupling,in low electron-dimensional materials.The photoluminescence of inor-ganic copper(Ⅰ)metal halides with low electron-dimen-sionality has been found to be the result of STEs.These materials were of significant interest because of their lead-free,all-inorganic structures,and high luminous efficien-cies.In this paper,we summarize the luminescence characteristics of zero-and one-dimensional inorganic copper(Ⅰ)metal halides with STEs to provide an overview of future research opportunities.
其他文献
为了研究水树生长对交联聚乙烯(cross linked polyethylene,XLPE)材料晶区的破坏作用,研究水树生长早期XLPE材料的晶区结构变化及晶区破坏机制.采用加速水树老化平台对A、B、C三组XLPE薄片样本分别进行10天、20天、30天的水树老化,老化结束后用化学侵蚀法侵蚀样本,并用扫描电镜(scanning electron microscope,SEM)观测水树区域晶区形貌,用X射线衍射(X ray diffraction,XRD)检测水树区域晶区结构变化.SEM观测结果表明,侵蚀样本
为得到适用于我国电力设计实践的覆冰导线直流电晕损失数据,该文在实验室中搭建基于电晕笼的覆冰导线直流电晕效应试验平台.系统地研究覆冰时间、覆冰水电导率和覆冰电场强度对导线雨凇覆冰形态及其电晕损失的影响规律.研究表明:雨淞覆冰导线电晕损失与标称电场强度之间服从幂函数关系.覆冰时间越长、覆冰水电导率越高、覆冰电场强度越低,带电覆冰形成的雨淞覆冰导线的覆冰重量、覆冰厚度、冰凌长度及其电晕损失越大,相应的电晕起始电压和粗糙系数越小.改进的二次规律法可用于判定雨凇覆冰导线的电晕起始电压.雨淞覆冰导线的粗糙系数在0.1
导线电晕放电与空间电荷密切相关,研究空间电荷的变化有助于分析电晕放电本质.该文搭建交流电压电晕笼试验平台,利用接地电容与导线和电晕笼构成的杂散电容形成串联分压电路,测量起晕前后的导线电压和电晕笼壁电压.根据电流连续性原理推导得到空间电荷表达式.试验结果表明,空间电荷导致电晕笼壁电压畸变,正负半周波形具有不对称性,波形正负峰值大小与电压幅值成正相关,与电压频率和导线半径成负相关.电晕笼壁电压可以作为宏观特征量反映空间电荷的变化.进一步提取空间电荷峰值、空间电荷峰值时延以及空间电荷增长速率作为交流电晕低频特征
Optical traps have emerged as powerful tools for immobilizing and manipulating small particles in three dimensions.Fiber-based optical traps(FOTs)significantly simplify optical setup by creating trapping centers with single or multiple pieces of optical f
In this paper,we reported an integrated method to generate ultra-wideband(UWB)pulses of different orders based on a reconfigurable silicon micro-ring resonator-coupled Mach-Zehnder interferometer.Under proper operating conditions,the device can produce Fa
To demonstrate the existence of singular parity-time symmetry(PT-symmetry)broken point in optics system,we designed a one-dimensional PT sym-metric structure including N unit-cell with loss and gain materials in half.We performed an analytical deduction t
Cadmium selenide(CdSe)belongs to the binary Ⅱ-Ⅵ group semiconductor with a direct bandgap of～1.7 eV.The suitable bandgap,high stability,and low manufacturing cost make CdSe an extraordinary candidate as the top cell material in silicon-based tandem solar
X-ray detection is of great significance in biomedical,nondestructive,and scientific research.Lead halide perovskites have recently emerged as one of the most promising materials for direct X-ray detection.However,the lead toxicity remains a worrisome con
Thin-film solar cells show considerable appli-cation potential as alternative photovoltaic technologies.Cuprous antimony chalcogen materials and their deriva-tives,represented as CuSbS2 and CuPbSbS3,respectively,exhibit the advantages of low cost,massive
With the benefits of low latency,wide transmission bandwidth,and large mode field area,hollow-core antiresonant fiber(HC-ARF)has been a research hotspot in the past decade.In this paper,a hollow core step-index antiresonant fiber(HC-SARF),with stepped ref