DataVXAdvanced Engineering MaterialsPaper
journal article·2022-01

A Printed Wireless Triangle‐Wave Generator via a Smartphone

Younsu Jung, Sagar Shrestha, Namsoo Lim, Hyejin Park, Junfeng Sun, Jinhwa Park, Sajjan Parajuli, Kiran Shrestha, Seongryeong Kim, Gyoujin Cho

Advanced Engineering Materials· Volume 24· Issue 1
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Source abstract

Abstract

An all‐printed wireless triangle‐wave generator is needed to produce a printed wireless and disposable cyclic voltammetry (CV)‐based biosensor to detect redox‐active analytes. The generator should produce positive and negative potentials from the smartphone's near‐field‐communication (NFC) (13.56 MHz) carrier signal. However, the printed triangle‐wave generator that contains rectenna and a ring oscillator fails to wirelessly operate with a smartphone because the polarized (±) DC power from the NFC carrier signal of the smartphone could not be provided through the utilization of a printed Schottky diode. Herein, an n‐type indium gallium zinc oxide (IGZO)‐based ink is formulated to print the Schottky junction with a high work function of the printed electrode provided by in situ doping of printed poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on Ag electrode. The printed IGZO‐based rectenna could wirelessly harvest polarized (±) DC 10 V from the smartphone to generate a triangle wave with positive and negative potentials through the printed ring oscillator.
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Research context

OpenAlex topics: Energy Harvesting in Wireless Networks · Advanced Sensor and Energy Harvesting Materials · Nanowire Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Biophysics Institute of Quantum Biophysics Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence Sungkyunkwan University Suwon-si 16419 Republic of Korea

Sensor System Research Center Korea Institute of Science and Technology (KIST) Seoul 02782 Republic of Korea

Next Generation Battery Research Center Korea Electrotechnology Research Institute (KERI) Changwon-si 51543 Republic of Korea

School of Engineering Huzhou University Xueshi Road, No. 1 Huzhou 313000 P. R. China

Funding

National Research Foundation of Korea

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