標題: Multifunctional full-visible-spectrum optoelectronics based on a van der Waals heterostructure
作者: Yang, Shih-Hsien
Lee, Ko-Chun
Tsai, Meng-Yu
Chang, Yuan-Ming
Lin, Che-Yi
Yang, Feng-Shou
Watanabe, Kenji
Taniguchi, Takashi
Lien, Chen-Hsin
Ho, Ching-Hwa
Li, Mengjiao
Lin, Yen-Fu
Lai, Ying-Chih
電子物理學系
Department of Electrophysics
關鍵字: Low-powered;Van der Waals heterostructure;ReSe2;Optoelectronic memory;Charge storage;Multi-functionality
公開日期: 1-Dec-2019
摘要: Multifunctional devices are expected to allow development of low-cost, highly integrated, and energy-efficient electronics for the internet of things (IoT) era. Here, we demonstrate an all-two-dimensional ReSe2/h-BN/graphene heterostructure (ReSe2 HS) consisting of a vertically coupled ReSe2 field-effect transistor and charge storage component, which possesses multifunctional characteristics for use in electronics and optoelectronics. As an electrically controlled non-volatile memory (NVM), the ReSe2 HS delivers high-performance multilevel data storage with a readout on/off current ratio exceeding 10(5) and excellent durability (> 10(4) s) at an ultralow V-ds of 50 mV, which benefits to the development of power saving devices. The ReSe2 HS design and high-photoresponsivity ReSe2 channel also achieve an energy efficient optical NVM with full-visible-spectrum distinction. Besides, the ReSe2 HS displays unique ambipolarity to operate as either an inverter or frequency doubler. We further propose a power-free ReSe2 HS optical memory matrix to simplify imaging systems. The ReSe2 HS shows promise for use in light-programmable information storage systems and neuromorphic computation with low power consumption.
URI: http://dx.doi.org/10.1016/j.nanoen.2019.104107
http://hdl.handle.net/11536/153598
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2019.104107
期刊: NANO ENERGY
Volume: 66
起始頁: 0
結束頁: 0
Appears in Collections:Articles