Solution-sheared thin films of a donor-acceptor random copolymer/ polystyrene blend as active material in field-effect transistors

Organic semiconductor (OSC):polymer blends are recently increasing their popularity due to the impressive performances they offer once employed as active layer in organic field-effect transistors (OFETs). Here a novel blend formulation composed by the donor-acceptor random copolymer PDPP-TT(1)-SVS(9...

Full description

Bibliographic Details
Authors: Leonardi, Francesca, Qiaoming, Zhang, Yun-Hi, Kim, Mas Torrent, Marta
Format: article
Status:Versión aceptada para publicación
Publication Date:2019
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/175004
Online Access:http://hdl.handle.net/10261/175004
Access Level:Open access
Keyword:Electrolytes
Organic field effect transistors
Phase separation
Polymer blends
Shearing
Thin film transistors
Thin films
Ambient conditions
Device performance
Device stability
Donor acceptors
Morphological properties
Random copolymer
Solution shearing
Vertical phase separations
Thin film circuits
Description
Summary:Organic semiconductor (OSC):polymer blends are recently increasing their popularity due to the impressive performances they offer once employed as active layer in organic field-effect transistors (OFETs). Here a novel blend formulation composed by the donor-acceptor random copolymer PDPP-TT(1)-SVS(9) and polystyrene has been processed by a solution shearing technique and employed as active material in a thin film transistor. The molecular weight of the polymer binder has revealed to be fundamental for controlling the vertical phase separation and, in turn, for determining the morphological properties of the upper surface which is critical in terms of device stability. The bi-component active layer has been tested as OFET and by using a top gate as electrolyte-gated field-effect transistor (EGOFET). Our strategy based on an OSC:polymer blend processed through a solution shearing technique has demonstrated to be efficient for improving the final device performance in ambient conditions.

Similar Items