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无机材料学报

• 研究论文 •    下一篇

微波辅助可控合成黑磷量子点增强PEDOT:PSS摩擦纳米发电机性能

余俊龙1, 蒋胤2, 郭江涛2, 杨培志2, 冯小波1   

  1. 1.云南师范大学物理与电子信息学院, 昆明 650500;
    2.云南师范大学能源与环境科学学院, 昆明 650500
  • 收稿日期:2026-01-13 修回日期:2026-02-11
  • 通讯作者: 冯小波, 教授. E-mail: fengxiaobo1220@gmail.com
  • 作者简介:余俊龙(2000-), 男, 硕士研究生. E-mail: 1661815134@qq.com
  • 基金资助:
    国家自然科学基金(12264057); “春城计划”高层次人才引进培养工程(2022SCP005); 面向南亚东南亚科技创新中心专项(202403AP140015)

Controlled Microwave-assisted Synthesis of Black Phosphorus Quantum Dots Boosts PEDOT:PSS TENG Performance

YU Junlong1, JIANG Yin2, GUO Jiangtao2, YANG Peizhi2, FENG Xiaobo1   

  1. 1. School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China;
    2. School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
  • Received:2026-01-13 Revised:2026-02-11
  • Contact: FENG Xiaobo, professor. E-mail: fengxiaobo1220@gmail.com
  • About author:YU Junlong (2000-), male, Master candidate. E-mail: 1661815134@qq.com
  • Supported by:
    National Natural Science Foundation of China (12264057); Yunnan Revitalization Talent Support Program, the Spring City Plan: The High-level Talent Promotion and Training Project of Kunming (2022SCP005); Special Project for the Science and Technology Innovation Center for South and Southeast Asia (202403AP140015)

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摘要： 黑磷量子点(Black phosphorus quantum dots, BPQDs)因其可调的带隙与高载流子迁移率在能源领域备受关注,但其高质量可控制备仍是当前技术瓶颈。本研究提出了一种基于微波辅助液相剥离技术的简便、低成本、高效的BPQDs合成策略,并探究其在提升摩擦纳米发电机(Field-effect direct-current generator, TENG)性能中的应用。通过系统调控微波温度、时间及前驱体/溶剂配比,筛选出最佳工艺参数为150 ℃, 6 h, 1:2。在此条件下,成功制备出平均尺寸低至1.47 nm且分布均匀的高质量BPQDs。与传统方法相比,该策略在制备效率及产物结构完整性方面均展现出显著优势。进一步,将所制备的BPQDs与导电聚合物PEDOT:PSS复合,构建了场效应直流发电机的活性摩擦层。实验结果表明,引入BPQDs后,器件的输出性能显著提升;相较于纯PEDOT:PSS器件,平均峰值电流提升 43.6%;系统研究还发现,通过升高合成温度减小BPQDs尺寸,可线性提升器件的输出电压、电流及电荷转移速率,在150 ℃时获得最佳输出。性能提升可归因于超小BPQDs优异的电学特性及其高比表面积对界面极化与电荷存储的促进作用。本工作不仅为BPQDs的绿色、可控制备提供了高效新方法,还通过其在柔性自供能系统中的应用,展示了其在能源转换领域的广阔应用潜力。

关键词: 黑磷量子点, 微波辅助液相剥离法, 可控制备, 场效应直流发电机

Abstract: Black phosphorus quantum dots (BPQDs) have attracted considerable interest in the energy sector owing to their tunable bandgap and high charge carrier mobility. However, the controllable synthesis of high-quality BPQDs remains a significant challenge. This study proposes a facile, low-cost, and efficient microwave-assisted liquid-phase exfoliation strategy for synthesizing BPQDs and explores their application in enhancing triboelectric nanogenerator (TENG) performance. By systematically adjusting microwave temperature, duration, and precursor/solvent ratio, the optimal parameters were identified as 150 ℃, 6 h, and 1:2. Under these conditions, high-quality BPQDs with an average size as small as 1.47 nm and uniform distribution were successfully prepared. Compared with conventional methods, this strategy shows notable advantages in production efficiency and structural integrity. Furthermore, the as-prepared BPQDs were composited with the conductive polymer PEDOT:PSS to form an active friction layer for a field-effect direct-current generator (FENG). Experimental results demonstrate that incorporating BPQDs significantly improves the device's output performance, the average peak current increases by 43.6% compared to the pure PEDOT:PSS-based device. It was also found that reducing BPQD size by raising synthesis temperature linearly enhances output voltage, current, and charge transfer rate, and with the best performance achieved at 150 ℃. The improvement is attributed to the excellent electrical properties of ultrasmall BPQDs and their high specific surface area, which promote interfacial polarization and charge storage. This study not only provides an efficient and green strategy for the controllable preparation of BPQDs but also, through their successful integration into flexible self-powered systems, demonstrates their broad application potential in the field of energy conversion.

Key words: black phosphorus quantum dots, microwave-assisted exfoliation, size-controlled synthesis, triboelectric nanogenerator

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