Black phosphorus quantum dots

Xiao Zhang; Haiming Xie; Zhengdong Liu; Chaoliang Tan; Zhimin Luo; Hai Li; Jiadan Lin; Liqun Sun; Wei Chen; Zhichuan Xu; Linghai Xie; Wei Huang; Hua Zhang

doi:10.1002/anie.201409400

Black phosphorus quantum dots

Xiao Zhang, Haiming Xie, Zhengdong Liu, Chaoliang Tan, Zhimin Luo, Hai Li, Jiadan Lin, Liqun Sun, Wei Chen, Zhichuan Xu, Linghai Xie, Wei Huang, Hua Zhang

Research output: Journal article publication › Journal article › Academic research › peer-review

634 Citations (Scopus)

Abstract

As a unique two-dimensional nanomaterial, layered black phosphorus (BP) nanosheets have shown promising applications in electronics. Although mechanical exfoliation was successfully used to prepare BP nanosheets, it is still a challenge to produce novel BP nanostructures in high yield. A facile top-down approach for preparation of black phosphorus quantum dots (BPQDs) in solution is presented. The obtained BPQDs have a lateral size of 4.9±1.6 nm and thickness of 1.9±0.9 nm (ca. 4±2 layers). As a proof-of-concept application, by using BPQDs mixed with polyvinylpyrrolidone as the active layer, a flexible memory device was successfully fabricated that exhibits a nonvolatile rewritable memory effect with a high ON/OFF current ratio and good stability.

Original language	English
Pages (from-to)	3653-3657
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	12
DOIs	https://doi.org/10.1002/anie.201409400
Publication status	Published - 16 Mar 2015
Externally published	Yes

Keywords

black phosphorus
memory devices
quantum dots
two-dimensional materials

ASJC Scopus subject areas

Catalysis
General Chemistry

More information

10.1002/anie.201409400

Cite this

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title = "Black phosphorus quantum dots",

abstract = "As a unique two-dimensional nanomaterial, layered black phosphorus (BP) nanosheets have shown promising applications in electronics. Although mechanical exfoliation was successfully used to prepare BP nanosheets, it is still a challenge to produce novel BP nanostructures in high yield. A facile top-down approach for preparation of black phosphorus quantum dots (BPQDs) in solution is presented. The obtained BPQDs have a lateral size of 4.9±1.6 nm and thickness of 1.9±0.9 nm (ca. 4±2 layers). As a proof-of-concept application, by using BPQDs mixed with polyvinylpyrrolidone as the active layer, a flexible memory device was successfully fabricated that exhibits a nonvolatile rewritable memory effect with a high ON/OFF current ratio and good stability.",

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T1 - Black phosphorus quantum dots

AU - Zhang, Xiao

AU - Xie, Haiming

AU - Liu, Zhengdong

AU - Tan, Chaoliang

AU - Luo, Zhimin

AU - Li, Hai

AU - Lin, Jiadan

AU - Sun, Liqun

AU - Chen, Wei

AU - Xu, Zhichuan

AU - Xie, Linghai

AU - Huang, Wei

AU - Zhang, Hua

PY - 2015/3/16

Y1 - 2015/3/16

N2 - As a unique two-dimensional nanomaterial, layered black phosphorus (BP) nanosheets have shown promising applications in electronics. Although mechanical exfoliation was successfully used to prepare BP nanosheets, it is still a challenge to produce novel BP nanostructures in high yield. A facile top-down approach for preparation of black phosphorus quantum dots (BPQDs) in solution is presented. The obtained BPQDs have a lateral size of 4.9±1.6 nm and thickness of 1.9±0.9 nm (ca. 4±2 layers). As a proof-of-concept application, by using BPQDs mixed with polyvinylpyrrolidone as the active layer, a flexible memory device was successfully fabricated that exhibits a nonvolatile rewritable memory effect with a high ON/OFF current ratio and good stability.

AB - As a unique two-dimensional nanomaterial, layered black phosphorus (BP) nanosheets have shown promising applications in electronics. Although mechanical exfoliation was successfully used to prepare BP nanosheets, it is still a challenge to produce novel BP nanostructures in high yield. A facile top-down approach for preparation of black phosphorus quantum dots (BPQDs) in solution is presented. The obtained BPQDs have a lateral size of 4.9±1.6 nm and thickness of 1.9±0.9 nm (ca. 4±2 layers). As a proof-of-concept application, by using BPQDs mixed with polyvinylpyrrolidone as the active layer, a flexible memory device was successfully fabricated that exhibits a nonvolatile rewritable memory effect with a high ON/OFF current ratio and good stability.

KW - black phosphorus

KW - memory devices

KW - quantum dots

KW - two-dimensional materials

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U2 - 10.1002/anie.201409400

DO - 10.1002/anie.201409400

M3 - Journal article

AN - SCOPUS:85027954493

SN - 1433-7851

VL - 54

SP - 3653

EP - 3657

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 12

ER -

Black phosphorus quantum dots

Abstract

Keywords

ASJC Scopus subject areas

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