de Lima Citolino, Lucas Vinicius [UNESP]Assunção da Silva, Edilene [UNESP]de Almeida Olivati, Clarissa [UNESP]2019-10-062019-10-062019-03-01Materials Science in Semiconductor Processing, v. 91, p. 296-305.1369-8001http://hdl.handle.net/11449/187141Molecular organization in solid state plays a central role on organic devices performance. In this sense, a thorough investigation of thin films with application in organic electronics is imperative. This work addressed the fabrication and the morphological, optical and electrical characterization of Langmuir-Schaefer (LS) films of poly(3-hexylthiophene) (P3HT), pristine and mixed with stearic acid (SA), and their use as the active layer in organic Schottky diodes. The floating materials isotherms showed the SA molecules acting as a stabilizer for the P3HT in the Langmuir trough. Moreover, deposited P3HT:SA films present significant morphological changes, an improvement of the films overall structural ordering and a more effective charge transport within the active layer through electrical outcome. The alternating current measurements along with theoretical fitting, using equivalent electrical circuits, provided a good alternative to investigate the interfacial effects of the P3HT and P3HT:SA films deposited onto Al and Au electrodes.296-305engElectrical impedance spectroscopyLangmuir-SchaeferPolythiopheneStructure-property relationsThin filmsArtigo10.1016/j.mssp.2018.11.031Acesso aberto2-s2.0-8505781457898222128086514150000-0002-0114-6795