CHARGE TRANSPORT IN ORGANIC AND HYBRID PEROVSKITE FIELD EFFECT TRANSISTORS

Organic semiconductors and hybrid organic/inorganic perovskite semiconductors can address new applications, which are off-limits for conventional silicon-based electronics. We fabricate organic field-effect transistors (OFETs) and through the use of several device architectures, in combination with surface treatments, we were able to achieve mobilities as high as 6.8 cm2/Vs. We find that the microstrain induced in the organic semiconductor layer by the mismatch in the thermal expansion between the consecutive device layers generates trapping states and localize charge carriers, leading to a surprising universal scaling between the activation energy of the devices and the interfacial thermal expansion mismatch coefficient.

Grantor dc:publisher

Wake Forest University

Year dc:date.issued

2016

Author dc:creator

• Mei, Yaochuan

• charge transport

Language dc:language.iso

en

Handle dc:identifier.uri

http://hdl.handle.net/10339/59262

OAI identifier oai:identifier

oai:wakespace.lib.wfu.edu:10339/59262