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- W2802014098 abstract "Semiconductor quantum dots have intriguing electronic and optical properties distinguished from bulk owing to quantum confinement effects. Among the two-dimensional materials, black phosphorus (BP) has generated enormous excitement due to its tunable direct band gap and high p-type semiconducting properties. We prepared BP quantum dots (BPQDs) by simple liquid exfoliation using distilled water and ethanol solution. Our structural data show the uniform distribution of circular BPQDs with the average lateral size of 4.08 ± 0.66 nm and the height of 1.13 ± 0.32 nm. We fabricated BPQD field-effect transistors (FETs) to investigate the electrical characteristics of BPQD-based devices and found that both hole and electron transport can be probed in the BPQD FETs. The BPQD FETs exhibited unprecedentedly ambipolar behavior with the mobility of 0.11 cm2 V−1 s−1 for p type and 0.09 cm2 V−1 s−1 for n type at 300 K. Our results provide the simple preparation methods to fabricate ambipolar BPQD FETs with the comparable hole and electron transport for large-area applications in solar cells and optoelectronic devices." @default.
- W2802014098 created "2018-05-17" @default.
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- W2802014098 date "2018-08-01" @default.
- W2802014098 modified "2023-09-26" @default.
- W2802014098 title "Black phosphorus quantum dot-based field-effect transistors with ambipolar characteristics" @default.
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- W2802014098 doi "https://doi.org/10.1016/j.apsusc.2018.04.158" @default.
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