Ultrathin, High Capacitance Capping Layers for Silicon Electronics with Conductive Interconnects in Flexible, Long‐Lived Bioimplants

2019 ◽  
Vol 5 (1) ◽  
pp. 1900800 ◽  
Author(s):  
Jinghua Li ◽  
Rui Li ◽  
Chia‐Han Chiang ◽  
Yishan Zhong ◽  
Haixu Shen ◽  
...  
Keyword(s):  
High Capacitance ◽  
Silicon Electronics

scholarly journals Retraction of “High-Capacitance Mechanism for Ti3C2Tx MXene by in Situ Electrochemical Raman Spectroscopy Investigation″

ACS Nano ◽  
2021 ◽  
Author(s):  
Minmin Hu ◽  
Zhaojin Li ◽  
Tao Hu ◽  
Shihao Zhu ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Capacitance

High-mobility amorphous PTB7 organic transistors enabled by high-capacitance electrolyte dielectric

2021 ◽  
Vol 119 (4) ◽  
pp. 042103
Author(s):  
Benjamin Nketia-Yawson ◽  
Ji Hyeon Lee ◽  
Jea Woong Jo
Keyword(s):  
High Mobility ◽  
Organic Transistors ◽  
High Capacitance

scholarly journals Capacitance Effects of a Hydrophobic-Coated Ion Gel Dielectric on AC Electrowetting

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 320
Author(s):  
Taewoo Lee ◽  
Sung-Yong Park
Keyword(s):  
Contact Angle ◽  
Experimental Studies ◽  
Frequency Region ◽  
Mixing Enhancement ◽  
High Capacitance ◽  
Angle Change ◽  
Gel Layer ◽  
Resonance Frequencies ◽  
Ion Gel ◽  
Capacitance Effects

We present experimental studies of alternating current (AC) electrowetting dominantly influenced by several unique characteristics of an ion gel dielectric in its capacitance. At a high-frequency region above 1 kHz, the droplet undergoes the contact angle modification. Due to its high-capacitance characteristic, the ion gel allows the contact angle change as large as Δθ = 26.4°, more than 2-fold improvement, compared to conventional dielectrics when f = 1 kHz. At the frequency range from 1 to 15 kHz, the capacitive response of the gel layer dominates and results in a nominal variation in the angle change as θ ≈ 90.9°. Above 15 kHz, such a capacitive response of the gel layer sharply decreases and leads to the drastic increase in the contact angle. At a low-frequency region below a few hundred Hz, the droplet’s oscillation relying on the AC frequency applied was mainly observed and oscillation performance was maximized at corresponding resonance frequencies. With the high-capacitance feature, the ion gel significantly enlarges the oscillation performance by 73.8% at the 1st resonance mode. The study herein on the ion gel dielectric will help for various AC electrowetting applications with the benefits of mixing enhancement, large contact angle modification, and frequency-independent control.

scholarly journals A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors

Electrochem ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 236-250
Author(s):  
Arjun Prasad Tiwari ◽  
Tanka Mukhiya ◽  
Alagan Muthurasu ◽  
Kisan Chhetri ◽  
Minju Lee ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Negative Electrode ◽  
Smart Devices ◽  
Potential Candidate ◽  
Free Standing ◽  
High Capacitance ◽  
Negative Electrode Materials ◽  
Carbon Based

The development of smart negative electrode materials with high capacitance for the uses in supercapacitors remains challenging. Although several types of electrode materials with high capacitance in energy storage have been reported, carbon-based materials are the most reliable electrodes due to their high conductivity, high power density, and excellent stability. The most common complaint about general carbon materials is that these electrode materials can hardly ever be used as free-standing electrodes. Free-standing carbon-based electrodes are in high demand and are a passionate topic of energy storage research. Electrospun nanofibers are a potential candidate to fill this gap. However, the as-spun carbon nanofibers (ECNFs) have low capacitance and low energy density on their own. To overcome the limitations of pure CNFs, increasing surface area, heteroatom doping and metal doping have been chosen. In this review, we introduce the negative electrode materials that have been developed so far. Moreover, this review focuses on the advances of electrospun nanofiber-based negative electrode materials and their limitations. We put forth a future perspective on how these limitations can be overcome to meet the demands of next-generation smart devices.

Shedding Light on Pseudocapacitive Active Edges of Single-Layer Graphene Nanoribbons as High-Capacitance Supercapacitors

2019 ◽  
Vol 2 (5) ◽  
pp. 3665-3675 ◽  
Author(s):  
Mohammad Qorbani ◽  
Ali Esfandiar ◽  
Hamid Mehdipour ◽  
Marc Chaigneau ◽  
Azam Irajizad ◽  
...  
Keyword(s):  
Graphene Nanoribbons ◽  
Single Layer ◽  
Single Layer Graphene ◽  
High Capacitance ◽  
Layer Graphene

Solution Shearing of a High‐Capacitance Polymer Dielectric for Low‐Voltage Organic Transistors

2019 ◽  
Vol 5 (6) ◽  
pp. 1900067 ◽  
Author(s):  
Katherina Haase ◽  
Jakob Zessin ◽  
Konstantinos Zoumboulis ◽  
Markus Müller ◽  
Mike Hambsch ◽  
...  
Keyword(s):  
Low Voltage ◽  
Organic Transistors ◽  
High Capacitance ◽  
Polymer Dielectric

scholarly journals Characterization of high capacitance electrodes for the application of direct current electrical nerve block

2015 ◽  
Vol 54 (1) ◽  
pp. 191-203 ◽  
Author(s):  
Tina Vrabec ◽  
Niloy Bhadra ◽  
Jesse Wainright ◽  
Narendra Bhadra ◽  
Manfred Franke ◽  
...  
Keyword(s):  
Nerve Block ◽  
Direct Current ◽  
High Capacitance
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