Accurate Extraction of Charge Carrier Mobility in 4-Probe Field-Effect Transistors - Choi,HH; Rodionov,YI; Paterson,AF; Panidi,J; Saranin,D; Kharlamov,N; Didenko,SI; Anthopoulos,TD; Cho,K; Podzorov,V (ADVANCED FUNCTIONAL MATERIALS, 2018)