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Solution-Processed Mixed-Dimensional Hybrid Perovskite/Carbon Nanotube Electronics.

Chun MaSarah ClarkZhixiong LiuLiangliang LiangYuliar FirdausRan TaoAli HanXiaogang LiuLain-Jong LiThomas D AnthopoulosMark C HersamTom Wu
Published in: ACS nano (2020)
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 (MA1-xFAx)Pb(I1-xBrx)3, enabling mixed-dimensional solution-processed electronics with high mobility (32.25 cm2/(V s)) and low voltage (∼3 V) operation. The resulting mixed-dimensional PVK/SWCNT TFTs possess ON/OFF ratios on the order of 107, enabling the fabrication of high-gain inverters.
Keyphrases
  • carbon nanotubes
  • solar cells
  • walled carbon nanotubes
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  • working memory
  • high efficiency
  • physical activity
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