【摘 要】
：
The strong dependence of photoluminescence of charge transfer excited states or exciplex in a blend film of poly(9,9-dioctylfluorene-co-benzothiadiazole)(F8BT)a
【机 构】
：
Institute of Information Photonics Technology and College of Applied Sciences,Beijing University of
论文部分内容阅读
The strong dependence of photoluminescence of charge transfer excited states or exciplex in a blend film of poly(9,9-dioctylfluorene-co-benzothiadiazole)(F8BT)and poly(9,9-dioctylfluorene-co-bis-N,N-(4-butylphenyl)-bis-N,N-phenyl-1,4-phenylenediamine)(PFB)on the excitation wavelengths and morphology is investigated.The experimental results reveal that electron transfer in the LUMOs from PFB to F8BT is more efficient than hole transfer in the HOMOs from PFB to F8BT for the formation of exciplex at the interfacial junctions between these two types of molecules in the blend film.Furthermore,energy transfer from the blue-emitting PFB to the green-emitting F8BT at the interfaces introduces an additional two-step channel and thus enhances the formation of an exciplex.This is important for understanding of charge generation and separation in organic bulk heterojunctions and for design of optoelectronic devices.
其他文献
Frequency responses of modulated electroluminescence (EL) of light-emitting diodes were measured using a testing setup.With increasing frequency of the ac signa
摘要：我们对音乐作品的分析，不仅包括内容分析，更包括形式分析。通常情况下，音乐作品的形式主要有节奏、旋律、音色和曲式等。在音乐作品中，各个形式要素不是孤立存在的，而是交互交织、相互渗透的。 关键词：音乐教学 音乐审美 形式要素 在中学音乐教学中，首要任务主要是解决两方面的问题：其一是“教什么”，其二是“怎样教”。这两个问题在实践中是相互交织的。对中学生来说，不仅仅要掌握音乐作品的内容，更要
We propose a solvable model of topological characteristics for a microwave signal transmitting system,which is named as a repairable linear m-consecutive-k-out-
新课标明确指出，数学教学应切实结合学生的实际情况，激发学生对数学的好奇心与学习主动性。从目前来看，小学阶段的数学课堂教学主要存在两个方面的问题：一是教学过于注重理论，缺乏趣味性;二是学生在学习过程中的能动性发挥不高，导致教学效率难以得到有效提升。创设有效问题情境，能够丰富学生的学习过程，进而构建起活跃、生动的教学情境，促进课堂教学效率的提高。 一、在小学数学教学中创设有效问题情境的意义 （一）
本文介绍大型莱库计算机检测控制系统的软件和硬件方案。其中软件系统包括自校正预报开关控制器。两年的实际运行表明了这个系统的有效性。
This article describes the sof
Double-peak N-shaped negative differential resistance (NDR) with a high peak-to-valley ratio is observed in the output characteristics of a GaAs-based modulatio
PN junctions and schottky diodes are widely employed as electron-hole pair collectors in electron beam induced current(EBIC) techniques and betavoltaic batterie
Based on the vectorial Rayleigh diffraction integral,the integral formulae of three electromagnetic field components for radially polarized Laguerre-Gaussian be
GaN nanowires are grown by hydride vapor phase epitaxy using nickel as a catalyst.The properties of the obtained GaN nanowires are characterized by scanning and
Following the closure relation of normal mode theory,the source depth can be estimated approximately provided that the eigenfunction and the excited amplitude w