共轭聚合物（CP）掺杂薄膜可用于制备有机场效应晶体管、光电转换器件、太阳能电池等。掺杂剂种类、掺杂剂浓度、掺杂方法、结晶结构等因素都会对CP掺杂薄膜的电学性能产生影响。然而，已有的研究中鲜少关注分子量以及结晶度对CP掺杂薄膜解掺杂行为的影响。聚（3-己基噻吩）（P3HT）结构简单、结晶性能优良，是研究CP结构及性能的模型材料。强电子受体2,3,5,6-四氟-7,7’,8,8’-四氰醌二甲烷(F4TCNQ)与聚（3-己基噻吩）(P3HT)的掺杂体系组合是人们研究共轭聚合物掺杂的模型体系。本文选定分子量为16 k、30 k、60 k、91 kDa的P3HT为掺杂对象，使用P3HT的正交溶剂乙腈（AN）和良溶剂氯苯（CB）的二元混合溶液配制掺杂剂F4TCNQ溶液，通过次序掺杂法制得P3HT掺杂薄膜，结果表明掺杂薄膜的有序性越高，掺杂薄膜电导率越高。分子量会影响掺杂薄膜的掺杂程度，分子量越小，掺杂程度越高。在研究结晶度对CP掺杂薄膜性质的影响时，选定分子量为60 kDa的P3HT，分别从氯仿（TM）、邻二氯苯（ODCB）、甲苯（MB）超声后旋涂制得不同结晶度的P3HT薄膜，使用CB/AN的二元混合溶液作为掺杂剂溶剂，通过次序掺杂法掺杂制得P3HT薄膜，研究结果表明P3HT结晶度越高，其掺杂薄膜的电导率越高。掺杂薄膜的掺杂程度也受结晶度影响，结晶度越高，F4TCNQ次序掺杂后的薄膜掺杂程度越高。

Conjugated polymer (CP) doped films can be used to prepare field-effect transistors, photoelectric conversion devices, solar cells, etc. The type of dopant, the concentration of the dopant, the doping method, the crystallization structure and other factors will affect the electrical properties of CP doped film. However, few previous studies have paid much attention to the effects of molecular weight and crystallinity on the dedoping behavior of CP-doped films. Poly(3-hexylthiophene) (P3HT) has a simple structure and excellent crystallization properties, and is a model material for studying the structure and properties of CP. The combination of strong electron acceptor 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanoquinone dimethane (F4TCNQ) and poly(3-hexylthiophene) (P3HT) is a model system for studying the doping of conjugated polymers. In this paper, P3HT with molecular weights of 16 k, 30 k, 60 k, and 91 kDa was selected as the doping object, and the dopant F4TCNQ solution was prepared by using the binary mixed solution of P3HT's orthogonal solvent acetonitrile (AN) and benign solvent chlorobenzene (CB), and the P3HT doped film was prepared by sequential doping, and the results showed that the higher the order of the doped film, the higher the conductivity of the doped film. The molecular weight will affect the degree of doping of the doped film, the smaller the molecular weight, the higher the degree of doping. When studying the effect of crystallinity on the properties of CP-doped films, P3HT films with molecular weight of 60 kDa were selected to obtain P3HT films with different crystallinity from chloroform (TM), o-dichlorobenzene (ODCB) and toluene (MB) after ultrasonic spinning, and the binary mixed solution of CB/AN was used as the dopant solvent to obtain P3HT films by sequential doping, and the research results showed that the higher the crystallinity of P3HT, the higher the conductivity of the doped film. The degree of doping of the doped film is also affected by the crystallinity, the higher the degree of crystallinity, the higher the doping degree of the film after the F4TCNQ order doped.