Angielski
In this book we present the investigation of§electrostatic doping in a wide variety of novel§materials incorporated in field-effect transistors§(FETs), including polymers, organic§molecular crystals, graphene and bilayer graphene.§These studies have lead to substantial§advances in our current understanding of these§materials. Specifically, we performed the first§infrared (IR) imaging of the accumulation layer in§poly(3-hexylthiophene) (P3HT)§FETs. Furthermore, we found that charge carriers in§molecular orbital bands with light§mass dominate the transport properties of single§crystal rubrene. More recently, we§explored the IR absorption of graphene and found§several signatures of many-body§interactions. Moreover, we discovered an asymmetric§band structure in bilayer graphene§and determined the band parameters with an accuracy§never achieved before. Our work§has demonstrated that IR spectroscopy is uniquely§suited for probing the electronic§excitations in nanometer-thick accumulation layers in§FET devices.
