Open AccessA Facile Approach to Improve Interchain Packing Order and Charge Mobilities by Self‐Assembly of Conjugated Polymers on Water
Author(s) -
Yang Yizhou,
Liu Zitong,
Chen Jianmei,
Cai Zhengxu,
Wang Zhijie,
Chen Wei,
Zhang Guanxin,
Zhang Xisha,
Chi Lifeng,
Zhang Deqing
Publication year - 2018
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201801497
Subject(s) - polymer , materials science , conjugated system , organic semiconductor , thin film , evaporation , nanotechnology , semiconductor , thin film transistor , solvent , chemical engineering , charge carrier , fabrication , chemical physics , organic chemistry , optoelectronics , chemistry , composite material , medicine , physics , alternative medicine , layer (electronics) , pathology , engineering , thermodynamics
Development of facile and economic approaches for assembling organic semiconductors into more ordered structures toward high charge mobilities is highly demanding for the fabrication of organic circuits. Here a simple and facile approach is reported to prepare conjugated polymer thin films with improved crystallinities and charge mobilities by self‐assembling semiconducting polymers on water. The formation of polymer thin films with more ordered structures is attributed to coffee ring effect induced by solvent‐evaporation on water, and the hydrophobic nature of conjugated polymers that forces the polymer chains to pack densely and orderly on water surface. This approach is applicable to typical semiconducting polymers, and charge mobilities of their thin films are boosted remarkably. Finally, this new method can be utilized to easily fabricate the array of field‐effect transistors with high charge mobilities in an economic way.