在多层FePS3/单层MoS2中调节,多功能光电响应范德瓦尔斯p-n异质连接
Maria Ramos1,2, Marcos Gadea1,2, Samuel Mañas-Valero3
1Departamento de Física Aplicada, Universidad de Alicante Alicante 03080 Spain reyes.calvo@ua.es.
Nanoscale advances
|March 28, 2024
概括
我们开发了新的范德瓦尔斯异构结构,将二硫化 (MoS2) 和三硫化铁 (FePS3) 结合起来. 这些交叉点具有可调节的光发射和宽带的光响应,推进了灵活的光电子设备.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术纳米技术
背景情况:
- 范德瓦尔斯 (vdW) 半导体使垂直异构结构中的原子利接口成为可能.
- 这些接口为先进的薄型,灵活的光电子设备提供了独特的特性.
- 开发多功能VDW异质连接对于下一代电子产品至关重要.
研究的目的:
- 用单层MoS2 (n型) 和多层FePS3 (p型) 来演示多功能p-n连接.
- 调查光发光 (PL) 和宽带光响应的共存和可调性.
- 通过应用于电压和电场来探索MoS2光辐射和光电流生成的控制.
主要方法:
- 通过垂直堆叠单层MoS2和多层FePS3.3来制造异构结构.
- 光电子属性的表征,包括光发光和光电流测量.
- 在MoS2/FePS3接口上的能量频段对齐的分析.
主要成果:
- MoS2/FePS3异构结构表现出强大的光发光发射和宽带电光响应.
- 通过应用电压实现了对MoS2光辐射的精确控制,通过灭和增强 (高达10倍) 来实现.
- 观察到增强的紫外线光响应,在前向和反向偏差下可调节的光电流生成.
结论:
- 在MoS2/FePS3 vdW异构结构的功能作为一个多功能多功能p-n连接.
- 该系统表现出非常优异的光发射和光响应可调性,由频段对齐和外部刺激驱动.
- 这项工作为具有定制功能的新型灵活光电子设备铺平了道路.
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