Graphene Nanoislands

Low turn-on field

Discrete graphene islands expose more edges than continuous single-layer graphene, concentrating the local electric field and reducing the turn-on field for electron emission, making them suitable as stable vacuum electron sources.

Qinren, Zheng · Fuzhi, Zhan · She, Junyi · Jian-Yu, Wang · Ruo-Li, Shi · Meng, Guodong

Wuli Xuebao/Acta Physica Sinica 2024

Specifications

开启场强

{'zh': '5.55', 'en': ''} V/μm

电流密度

{'zh': '40.3', 'en': ''} μA/cm²

小时测试后电流密度仅衰减

{'zh': '2', 'en': ''} %