Localized-state distributions in molecularly doped polymers determined from time-of-flight transient photocurrent
Localized-state distributions in molecularly doped polymers determined from time-of-flight transient photocurrent
复制标题
由飞行时间瞬态光电流确定的分子掺杂聚合物的局域态分布
DOI：
10.1063/1.373649
复制
发表时间：
2000
影响因子：
3.2
通讯作者：
H. Naito
中科院分区：
文献类型：
--
作者：
T. Nagase;H. Naito
用传统的飞行时间暂态光电流测量方法研究了同时掺杂电荷传输分子[N，N‘-二苯基-N，N′-bis(3-methylphenyl)(1，1′-biphenyl)-4，4′-diamine(Tpd)]和陷阱形成分子[1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline(PrA)的分子掺杂聚合物(聚碳酸酯)体系中的局域态分布。通过比较由高斯无序模型推导出的局域态的高斯分布，证明了MDP系统中输运能量的存在。Status Solidi B 175，15(1993)]，局域态分布由基于陷阱控制的能带传输的TOF暂态光电流数据的分析确定[H.Naito，J.Ding，和M.Okuda，Appl.太棒了。让我们来吧。，1830年(1994年).由于宿主T的存在，输运能量位于高斯分布的中心。
Localized-state distributions have been studied in a molecularly doped polymer (MDP) system of a polymer binder (polycarbonate) doped with charge-transporting [N, N′-diphenyl-N, N′-bis(3-methylphenyl)(1,1′-biphenyl)-4,4′-diamine (TPD)] and trap-forming molecules [1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline (PRA)] simultaneously by means of the conventional time-of-flight (TOF) transient photocurrent measurements. The existence of a transport energy in the MDP system is experimentally shown by comparing Gaussian distributions of localized states deduced by the Gaussian disorder model, due to Bassler and co-workers [H. Bassler, Phys. Status Solidi B 175, 15 (1993)], with localized-state distributions determined from the analysis of the TOF transient photocurrent data, based on the trap-controlled band transport [H. Naito, J. Ding, and M. Okuda, Appl. Phys. Lett. 64, 1830 (1994)]. The transport energy is found to be located at the center of the Gaussian distribution due to the host T...