title: Tribotronic Tuning Diode for Active Analog Signal Modulation.
abstract: Realizing active interaction with external environment/stimuli is a great challenge for current electronics. In this paper, a tribotronic tuning diode (TTD) is proposed by coupling a variable capacitance diode and a triboelectric nanogenerator in free-standing sliding mode. When the friction layer is sliding on the device surface for electrification, a reverse bias voltage is created and applied to the diode for tuning the junction capacitance. When the sliding distance increases from 0 to 25 mm, the capacitance of the TTD decreases from about 39 to 8 pF. The proposed TTD has been integrated into analog circuits and exhibited excellent performances in frequency modulation, phase shift, and filtering by sliding a finger. This work has demonstrated tunable diode and active analog signal modulation by tribotronics, which has great potential to replace ordinary variable capacitance diodes in various practical applications such as signal processing, electronic tuning circuits, precise tuning circuits, active sensor networks, electronic communications, remote controls, flexible electronics, etc.
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences , Beijing 100083, People's Republic of China.
authors.forename: Tao
authors.initials: T
authors.lastname: Zhou
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences , Beijing 100083, People's Republic of China.
authors.forename: Zhi Wei
authors.initials: ZW
authors.lastname: Yang
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences , Beijing 100083, People's Republic of China.
authors.forename: Yaokun
authors.initials: Y
authors.lastname: Pang
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences , Beijing 100083, People's Republic of China.
authors.forename: Liang
authors.initials: L
authors.lastname: Xu
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences , Beijing 100083, People's Republic of China.
authors.forename: Chi
authors.identifier: 0000-0002-7511-805X
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences , Beijing 100083, People's Republic of China.|School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
authors.forename: Zhong Lin
authors.identifier: 0000-0002-5530-0380
authors.initials: ZL
authors.lastname: Wang
keywords: signal modulation; sliding electrification; triboelectric nanogenerator; tribotronics; tuning diode