CHUNG-CHIH WUT.-L. Liu,T.-L. LiuY.-T. Lin,Y.-T. LinW.-Y. Hung,W.-Y. HungT.-H. Ke,T.-H. KeKEN-TSUNG WONGT.-C. Chao,T.-C. Chao2018-09-102018-09-102004-0100036951http://scholars.lib.ntu.edu.tw/handle/123456789/310642https://www.scopus.com/inward/record.uri?eid=2-s2.0-4444364703&doi=10.1063%2f1.1784031&partnerID=40&md5=d8dddf4ed68af8c99f250362892fa303The examination of carrier-transport properties of a homologous series of oligofluorenes with C9 diaryl substitution was presented. The charge transport in oligofluorene films was characterized by the time-of-flight (TOF) transient photocurrent technique. The structures of oligofluorenes were also investigated. It was shown that these substituted oligofluorenes posses stable amorphous states ambipolar carrier-transport properties and processability to thin films for a range of oligomer lengths, rendering feasible investigating dependence of carrier transport on oligomer length in disordered systems. The carrier mobilities of these oligofluorenes show a clear decreasing trend with oligomer length.[SDGs]SDG6Chain defects; Disordered systems; Photonics; Amorphous materials; Charge transfer; Glass transition; Morphology; Optoelectronic devices; Photocurrents; Photons; Plastic films; Substitution reactions; Thin films; Oligomersjournal article10.1063/1.17840312-s2.0-4444364703WOS:000223233800027