Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ultrathin Active Layer for Transparent Electromagnetic Shielding Window
ACS Omega ( IF 3.7 ) Pub Date : 2018-03-08 00:00:00 , DOI: 10.1021/acsomega.7b02033 Hong-Li Zhang 1 , Yu Xia 1 , Jing-Gang Gai 1
ACS Omega ( IF 3.7 ) Pub Date : 2018-03-08 00:00:00 , DOI: 10.1021/acsomega.7b02033 Hong-Li Zhang 1 , Yu Xia 1 , Jing-Gang Gai 1
Affiliation
|
Recently, electromagnetic (EM) shielding (EMS) window, especially the ultrathin, transparent EMS active layer, has been the primary objective of extensive studies because of its widely potential applications in stealth technology, high radiation pollution, and others. However, several defects, including opacity and large thickness, have severely restricted the application in optical EMS devices. Herein, we developed an ultrathin and highly transparent EMS active layer on a rigid glass and a flexible polyethylene terephthalate substrate by chemical doping CVD (chemical vapor deposition) graphene with nitric acid (HNO3) as the P-type dopant, which has a 91% transmittance and 1/1000 thickness compared to the conventional EMS active layer. The HNO3-treated graphene shows excellent EMS efficiency by a factor of 4.5, significantly compensating for the adverse effects of the grain boundaries between CVD graphene crystals. Additionally, 55% HNO3 is the most suitable for achieving high EMS effectiveness, which can be significantly improved by treating for only 5 min. This unique chemical-doping CVD graphene holds potential for being exploited as a transparent active layer in numerous EMS applications.
中文翻译：
透明电磁屏蔽窗口的超薄有源层
最近，由于电磁（EM）屏蔽（EMS）窗口在隐身技术，高辐射污染等方面具有广泛的潜在应用，因此，尤其是超薄透明的EMS活性层已成为广泛研究的主要目标。但是，包括不透明性和较大厚度在内的一些缺陷严重限制了在光学EMS设备中的应用。本文中，我们通过以硝酸（HNO 3）作为P型掺杂剂的化学掺杂CVD（化学气相沉积）石墨烯，在硬质玻璃和柔性聚对苯二甲酸乙二醇酯基板上开发了一种超薄且高度透明的EMS活性层，其91与传统的EMS活性层相比，其透光率为％，厚度为1/1000。HNO 3经处理的石墨烯显示出出色的EMS效率（约为4.5），极大地补偿了CVD石墨烯晶体之间晶界的不利影响。此外，55％的HNO 3最适合实现高EMS效果，只需处理5分钟即可明显改善。这种独特的化学掺杂CVD石墨烯具有在众多EMS应用中被用作透明活性层的潜力。
更新日期：2018-03-08
中文翻译：
透明电磁屏蔽窗口的超薄有源层
最近，由于电磁（EM）屏蔽（EMS）窗口在隐身技术，高辐射污染等方面具有广泛的潜在应用，因此，尤其是超薄透明的EMS活性层已成为广泛研究的主要目标。但是，包括不透明性和较大厚度在内的一些缺陷严重限制了在光学EMS设备中的应用。本文中，我们通过以硝酸（HNO 3）作为P型掺杂剂的化学掺杂CVD（化学气相沉积）石墨烯，在硬质玻璃和柔性聚对苯二甲酸乙二醇酯基板上开发了一种超薄且高度透明的EMS活性层，其91与传统的EMS活性层相比，其透光率为％，厚度为1/1000。HNO 3经处理的石墨烯显示出出色的EMS效率（约为4.5），极大地补偿了CVD石墨烯晶体之间晶界的不利影响。此外，55％的HNO 3最适合实现高EMS效果，只需处理5分钟即可明显改善。这种独特的化学掺杂CVD石墨烯具有在众多EMS应用中被用作透明活性层的潜力。
京公网安备 11010802027423号