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A simple full-inkjet-printing technique is developed for the scalable fabrication of graphene-based micro-supercapacitors (MSCs) on various substrates. High-performance graphene inks are formulated by integrating the electrochemically exfoliated graphene with a solvent exchange technique to reliably print graphene interdigitated electrodes with tunable geometry and thickness. Along with the printed polyelectrolyte, poly(4-styrenesulfonic acid), the fully printed graphene-based MSCs attain the highest areal capacitance of ~0.7 mF/cm2, substantially advancing the state-of-art of all-solid-state MSCs with printed graphene electrodes. The full printing solution enables scalable fabrication of MSCs and effective connection of them in parallel and/or in series at various scales. Remarkably, more than 100 devices have been connected to form large-scale MSC arrays as power banks on both silicon wafers and Kapton. Without any extra protection or encapsulation, the MSC arrays can be reliably charged up to 12 volts and retain the performance even 8 months after fabrication.
This article was published in the following journal.
Name: ACS nano
Miniaturization of energy storage devices can significantly decrease the overall size of electronic systems. However, this miniaturization is limited by the reduction of electrode dimensions and the r...
Supercapacitors, based on the fast ion transportation, are specialized to provide high power, long stability, and efficient energy storage with highly porous electrode materials. However, their low en...
Si-containing graphite based composites are considered as potential anode for practical application in high-energy Li-ion batteries (LIBs). Here, a controllable and scalable self-assembly strategy is ...
Carbonaceous materials with high surface area and a sheet-like structure promote fast ion-transport kinetics, making them an ideal choice to be used in supercapacitors. Few-layer graphene (FLG)-like n...
It is a significant challenge to concurrently achieve scalable fabrication of graphene aerogels with three-dimensional (3D) tailorable architectures (e.g., lattice structure) and controllable manipula...
High-risk human papillomavirus (HR-HPV) are involved in cervical cancer development. Integration of HR-HPV DNA in cellular genomes is considered as a major event in the cervical cancer dev...
The purpose of this study is to evaluate the effectiveness of a simplified technique of conventional dentures fabrication, comparing it to a traditional technique, by evaluating the impact...
A pilot study is designed to evaluate safety and efficacy of the Micro-Coring (MC) technology for treatment of facial wrinkles. MC device employs hollow coring needles that enable safe, ra...
Post-market prospective clinical study with a medical device. Data from patients that routinely receive a primary BPK-S-integration knee implant made of ceramic will be documented with a f...
This study is intended to investigate the optimum interval between micro-osteoperforations to accelerate orthodontic tooth movement. Overall, the investigator will be comparing the rate of...
Insertion of viral DNA into host-cell DNA. This includes integration of phage DNA into bacterial DNA; (LYSOGENY); to form a PROPHAGE or integration of retroviral DNA into cellular DNA to form a PROVIRUS.
The integration of exogenous DNA into the genome of an organism at sites where its expression can be suitably controlled. This integration occurs as a result of homologous recombination.
A member of the c-ets family of transcription factors that is preferentially expressed in cells of hematopoietic lineages and vascular endothelial cells. It was originally identified as a protein that provides a retroviral integration site for integration of FRIEND MURINE LEUKEMIA VIRUS.
An integration host factor that was originally identified as a bacterial protein required for the integration of bacteriophage Q beta (ALLOLEVIVIRUS). Its cellular function may be to regulate mRNA stability and processing in that it binds tightly to poly(A) RNA and interferes with ribosome binding.
Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. The three most prominent theories used to explain the etiology of the disease are that acids produced by bacteria lead to decalcification; that micro-organisms destroy the enamel protein; or that keratolytic micro-organisms produce chelates that lead to decalcification.
Standard antiretroviral therapy (ART) consists of the combination of at least three antiretroviral (ARV) drugs to maximally suppress the HIV virus and stop the progression of HIV disease. Huge reductions have been seen in rates of death and suffering whe...