Effective work function modulation of SWCNT–AZO NP hybrid electrodes in fully solution-processed flexible metal-oxide thin film transistors

摘要: Work function modulation of electrode materials is a crucial factor for achieving superior performance in transparent and flexible device applications. In this work, aluminum-doped zinc-oxide nanoparticles (AZO NPs) with low work were introduced single-walled carbon nanotube (SWCNT) electrodes to achieve an Ohmic contact indium-oxide (In2O3) active layer. These SWCNT–AZO NP hybrid exhibited resistance the solution-processed In2O3 layer, due AZO NPs physisorbed on SWCNTs. The 50 nm thick films showed considerably electrical 214.5 Ω sq−1, optical transmittance 82.1% 4.57 eV. By using these as source drain electrodes, fully thin film transistors (TFTs) fabricated, they excellent performance. Furthermore, TFTs only 2.02% decrease field effect mobility after 1000 cycles repeated bending stress at radius curvature 3 mm.