通过Cu/Perovskite Schottky交叉路口构建超高电流直流三元光伏纳米发电机
Yuguang Luo1,2, Yang Ding1,2, Yangyang Liu1,2
1Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University, Changsha, Hunan 410083, China.
ACS nano
|December 11, 2024
概括
本研究介绍了基于矿的先进直流 triboelectric 纳米发电机 (DC-TENGs),可以收集机械和太阳能. 这些新型设备显著提高了电流输出和稳定性,为新的自动供电电子设备铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 收集能源 收集能源
- 纳米技术纳米技术
背景情况:
- 基于矿的直流 triboelectric 纳米发电机 (DC-TENGs) 正在探索同时机械和太阳能收集.
- 这些设备中的 tribo-photovoltaic 效应增强了能量输出.
- 现有的DC-TENG在实现高电流输出和运行稳定方面面临着挑战.
研究的目的:
- 创新地构建一个滚动模式的Cu/perovskite Schottky交叉点DC-TENG.
- 为了实现超高电流输出和卓越的操作稳定性.
- 探索传感和自动供电电子产品的潜在应用.
主要方法:
- 使用Cu/ternary阴离子矿 (FA0.945MA0.025Cs0.03Pb(I0.975Br0.025)3) 制造一个滚动模式的DC-TENG.
- 使用 Schottky 接口来创建用于载体分离的内部电场.
- 在AM 1.5 G照明下和黑暗条件下测试设备的性能.
主要成果:
- 在照明条件下实现了408μA的短路电流 (Isc) 和27.2A/m2的电流密度,比黑暗条件增加了119倍.
- 证明了卓越的操作稳定性,持续电流输出超过30分钟.
- 报道了迄今为止矿DC-TENG的最高Isc.
结论:
- 开发的Cu/perovskite Schottky结DC-TENG通过促进载体分离提供了稳定的直流输出.
- 该设备显示多功能应用的希望,包括温度/湿度传感和自动供电光检测.
- 可调节的输出阻抗可促进与自动供电的微电子元件的潜在集成.
相关概念视频
01:11P-N junction
466
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
466
01:27Schottky Barrier Diode
296
Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
296
02:47Voltaic/Galvanic Cells
56.8K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
56.8K