Ji Liang

Ji Liang
Tianjin University | tju · State Key Laboratory of Precision Measurement Technology and Instruments

Doctor of Engineering

About

28
Publications
6,687
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
194
Citations
Citations since 2016
20 Research Items
185 Citations
201620172018201920202021202205101520253035
201620172018201920202021202205101520253035
201620172018201920202021202205101520253035
201620172018201920202021202205101520253035
Education
September 2013 - June 2015
Tianjin University
Field of study
September 2009 - June 2013
Tianjin University
Field of study

Publications

Publications (28)
Article
Full-text available
In designing bioassay systems for low-abundance biomolecule detection, most research focuses on improving transduction mechanisms while ignoring the intrinsically fundamental limitations in solution: mass transfer and binding affinity. We demonstrate enhanced biomolecular surface binding using an acoustic nano-electromechanical system (NEMS) resona...
Article
This paper introduces an on-chip acoustic graphene transistor based on lithium niobate thin film. The graphene transistor is embedded in a microelectromechanical systems (MEMS) acoustic wave device, and surface acoustic waves generated by the resonator induce a macroscopic current in the graphene due to the acousto-electric (AE) effect. The acousti...
Article
Full-text available
This paper reports an on-chip acoustic sensor comprising a piston-mode film bulk acoustic resonator and a monolithically integrated nanochannel. The resonator with the channel exhibits a resonance frequency (f) of 2.5 GHz and a quality (Q) factor of 436 in deionized water. The f × Q product is as high as 1.1 × 10¹², which is the highest among all t...
Conference Paper
Full-text available
In this paper, we fabricated a hybrid on-chip acoustic and field-effect device to investigate the acoustic carrier transportation in graphene. The device fabrication exploited aluminum nitride (AlN)-based surface micromachining process on a silicon wafer, facilitating an integration of a surface acoustic wave (SAW) delay line and a graphene field-e...
Article
Full-text available
This paper reports an uncooled infrared (IR) detector based on a micromachined piezoelectric resonator operating in resonant and resistive dual-modes. The two sensing modes achieved IR responsivities of 2.5 Hz/nW and 900 μdB/nW, respectively. Compared with the single mode operation, the dual-mode measurement improves the limit of detection by two o...
Article
Full-text available
We report on Lamb wave resonators (LWRs) on a flexible substrate made of polyethylene terephthalate (PET) by transferring method. LWRs with three different topologies were fabricated on the same silicon wafer and then were transferred simultaneously to a flexible substrate with air cavities using a polydimethylsiloxane (PDMS) stamp. The resonators...
Article
We fabricated a hybrid on-chip acousto-electric (AE) and field-effect device to investigate the modulation of acoustic carrier transportation by gate voltage. The device fabrication exploited a surface micromachining aluminum nitride process on a silicon wafer, facilitating an integration of a surface acoustic wave(SAW) delay line and a graphene fi...
Chapter
This chapter reports on the state of the art of piezoelectric micro-/nano-mechanical devices in frequency control and sensing applications. Recent studies on bulk acoustic wave (BAW) devices are introduced, including investigation of high-coupling materials and filter and oscillator designs. A novel class of frequency devices based on Lamb waves is...
Article
We developed a wireless and passive piezoelectric resonant sensor for contimuous volatile organic compound detection. An equivalent circuit is proposed to model the sensing system, and Lamb wave resonators are adopted to demonstrate the wireless interrogation achieved by near-field inductive coupling. The wireless sensing system is employed to moni...
Article
Full-text available
In this letter, we demonstrate a technique to eliminate the spurious modes in aluminum nitride Lamb wave resonators (LWRs). The transverse acoustic wave characteristics are examined, and a resonance modulation theory on the regulation of mechanical boundary conditions is deducted. As examples of embodiments, vertical and lateral protrusion structur...
Article
Full-text available
Bulk acoustic wave (BAW) resonators are widely applied in filters and gravimetric sensors for physical or biochemical sensing. In this work, a new architecture of BAW resonator is demonstrated, which introduces a pair of reflection layers onto the top of a thin film bulk acoustic resonator (FBAR) device. The new device can be transformed between ty...
Article
Full-text available
This paper presents a transverse mode suppression theory and its experimental verification through aluminum nitride Lamb wave resonators (LWRs) operating at 142 MHz. An effective 2-D approximation model of the LWR is proposed, based on which the origin of transverse modes in LWR is investigated. The displacement distribution, resonant frequencies,...
Conference Paper
Full-text available
This paper reports on an implementation of an ultra-miniature 140 MHz narrowband filter based on aluminum nitride (AlN) Lamb wave resonators (LWRs). First, a design principle for ladder type LWR filters is presented. The fabricated device, cascaded with an inductor-capacitor network, is well matched to 50 ohm and shows a remarkably high performance...
Article
Full-text available
This paper reports on the implementation of an ultraminiature 140 MHz narrowband filter based on aluminum nitride Lamb wave resonators. Monolithically integrated with a pair of on-chip capacitors and cascaded with a pair of inductors, the filter is well matched to 50 ohm, showing a remarkably high performance. A low pass-band insertion loss of 2.78...
Article
Full-text available
A design guideline for one-port aluminum nitride (AlN) Lamb wave resonators (LWRs) working at S0 mode with high performance is reported. A fabricated 252 MHz LWR, with an aperture of 200 μm, 12 fingers, and 1.5 μm thick AlN, is found to have a remarkably high figure of merit (FOM), which exhibits a high ratio of the resistance at parallel resonance...
Conference Paper
Although digital microfluidic system has shown great potential in a wide range of applications, a single-chip platform integrating biochemical sensors with digital microfluidic devices is still lacking. In this paper, film bulk acoustic resonator (FBAR) sensors and electrowetting-on-dielectric (EWOD) actuator are integrated on a single silicon chip...
Conference Paper
Full-text available
In this paper, we report experimental results on band-pass aluminum nitride (AlN) MEMS filters that are based on Lamb wave resonators (LWRs) which exhibit a high ratio of the resistance at parallel resonance (Rp) to the resistance at series resonance (Rs). One-port LWRs working at S0 mode with various geometry dimensions are analyzed and the design...

Network

Cited By