Direct Growth of Multi‐Layer Graphene on Quartz Glass for High‐Performance Broadband Neutral Density Filter Applications,Advanced Optical Materials

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Direct Growth of Multi‐Layer Graphene on Quartz Glass for High‐Performance Broadband Neutral Density Filter Applications
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2020-04-20 , DOI: 10.1002/adom.202000166
Zhepeng Zhang _{1,

2} , Fan Zhou _{1,

2} , Pengfei Yang _{1,

2} , Bei Jiang ₁ , Jingyi Hu _{1,

2} , Xuan Gao ₃ , Yanfeng Zhang _{1,

2,

3}

Affiliation

2D layered materials, such as graphene, transition metal dichalcogenides, and hexagonal boron nitride (h ‐BN), cover a broadband in the electromagnetic spectrum with wavelengths ranging from hundred nanometers to millimeters. Their applications in photonic and optoelectronic nano‐devices have been demonstrated frequently, while they still need to be extended to daily life related fields. Herein, this work demonstrates a brand new application of multi‐layer graphene directly grown on quartz glass as broadband neutral density filters (NDFs). The graphene‐based NDFs present nearly wavelength‐independent transmittances over a wavelength range of 400–2500 nm, affording great optical attenuation capacity in the long‐exposure photography. This work further shows that, MoX₂ (X = S, Se) and h ‐BN directly grown on quartz glass can serve as optical cut‐off filters with different absorption edges located in the visible and deep‐ultraviolet ranges, respectively. The results are hereby expected to promote macroscopic optical applications of 2D layered materials and their heterostructures in high‐performance multi‐functional optical filters.

中文翻译：

用于高性能宽带中性密度滤光片应用的石英玻璃上多层石墨烯的直接生长

二维层状材料，例如石墨烯，过渡金属二卤化物和六方氮化硼（h- BN），覆盖了电磁波谱中的宽带，波长范围从数百纳米到毫米。它们在光子和光电子纳米器件中的应用已经得到了频繁展示，尽管它们仍需要扩展到日常生活相关领域。本文中，这项工作展示了直接在石英玻璃上生长的多层石墨烯作为宽带中性密度滤光片（NDF）的全新应用。基于石墨烯的NDF在400-2500 nm的波长范围内具有几乎与波长无关的透射率，在长时间曝光摄影中具有出色的光学衰减能力。这项工作进一步表明，MoX ₂（X = S，Se）和直接在石英玻璃上生长的h- BN可以用作光学截止滤光片，其吸收边缘分别位于可见光和深紫外线范围内。因此，预期结果将促进二维多层材料及其异质结构在高性能多功能光学滤波器中的宏观光学应用。

更新日期：2020-06-19

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