期刊
ACS NANO
卷 14, 期 4, 页码 3969-3979出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b07888
关键词
perovskite; SWCNT; TFT; electronics; mixed-dimensional vdW heterostructure
类别
资金
- Materials Research Science and Engineering Center (MRSEC) of Northwestern University [NSF DMR-1720139]
- Material Science and Engineering (MSE) of King Abdullah University of Science and Technology
Benefiting from their extraordinary physical properties, methylammonium lead halide perovskites (PVKs) have attracted significant attention in optoelectronics. However, the PVK-based devices suffer from low carrier mobility and high operation voltage. Here, we utilize sorted semiconducting single-walled carbon nanotubes (95% s-SWCNTs) to enhance the performance of thin-film transistors (TFTs) based on the mixed-cation perovskite (MA(1-x)FA(x))Pb(I1-xBrx)(3), enabling mixed-dimensional solution-processed electronics with high mobility (32.25 cm(2)/(V s)) and low voltage (similar to 3 V) operation. The resulting mixed-dimensional PVK/SWCNT TFTs possess ON/OFF ratios on the order of 10(7), enabling the fabrication of high-gain inverters.
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