Results 51 to 60 of about 69,644 (326)

Interfacial Contact Engineering Enables Giant‐Performance Semiconductor Nanomembrane Optoelectronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work investigates modifying interfacial contacts in realizing giant‐performance semiconductor nanomembrane optoelectronics. Strategies, including surface reaction and buffer layer work‐function modulation, are explored to boost the Schottky barrier. An emerging material of YbOx is utilized for near‐ideal Ohmic contact.
Yibo Zhang   +5 more
wiley   +1 more source

Hollow Microneedles on a Paper Fabricated by Standard Photolithography for the Screening Test of Prediabetes

open access: yesSensors, 2022
Microneedle (MN) is a novel technique of the biomedical engineering field because of its ability to evaluate bioinformation via minimal invasion. One of the urgent requirements for ground-breaking health care monitoring is persistent monitoring.
Tianwei Wu, Xueqiu You, Zhong Chen
doaj   +1 more source

A Maskless Photolithography Apparatus for the Microfabrication of Electrical Leads [PDF]

open access: yes, 2012
Graphene is a new and exciting, two-dimensional material. Particularly interesting are the electrical features of graphene. The small size of graphene used in this experiment (on the scale of microns) presents the need for small electrical leads ...
Lambert, Kyel
core   +1 more source

Analysis of an Inverse Problem Arising in Photolithography [PDF]

open access: yes, 2010
We consider the inverse problem of determining an optical mask that produces a desired circuit pattern in photolithography. We set the problem as a shape design problem in which the unknown is a two-dimensional domain. The relationship between the target
Ambrosio L.   +11 more
core   +3 more sources

Advanced Micro‐OLED Integration on Thin and Flexible Polymer Neural Probes for Targeted Optogenetic Stimulation

open access: yesAdvanced Functional Materials, EarlyView.
This paper introduces a flexible neural probe with integrated micro‐OLEDs on a flexible substrate for the first time, featuring 8 micro‐OLEDs and recording electrodes for optogenetics. It uses advanced encapsulation and an IAI anode for durability, emitting 470 nm light for ChR2 activation, enabling high‐resolution, minimally invasive stimulation ...
Somin Lee   +8 more
wiley   +1 more source

Photoinduced Dehalogenation‐Based Direct In Situ Photolithography of CsPbBr3 Quantum Dots Micropatterns for Encryption and Anti‐Counterfeiting with High Capacity

open access: yesSmall Structures
Fluorescent lead halide perovskite quantum dots (LH PQDs) micropatterns hold great potential for photonic applications. However, current photolithography for LH PQDs micropatterning is hindered by their incompatibility with traditional photolithography ...
Wanting Li   +6 more
doaj   +1 more source

Micromachining of electret materials, advantages and possibilities [PDF]

open access: yes, 1988
A process is described for the micromachining of organic electret materials like Teflon FEP (fluorinated ethylene propylene). The authors have used photolithography and plasma etching, by which electrets can be etched selectively.
Bergveld, P., Voorthuyzen, J.A.
core   +3 more sources

Bi‐Directional Assembly of Boron Nitride µ‐Platelets by Micro‐Molding for Advanced Thermal Interface Materials

open access: yesAdvanced Functional Materials, EarlyView.
Bi‐directionally assembled BN µ‐platelets in micropatterns formed by a micro‐molding method for thermal interface materials are demonstrated. The BN µ‐platelets are vertically aligned selectively, while compressed regions without patterns accommodate horizontally assembled BN µ‐platelets. Through anisotropic orientation, high thermal conductivities for
Young Gil Kim   +12 more
wiley   +1 more source

High efficiency near diffraction-limited mid-infrared flat lenses based on metasurface reflectarrays [PDF]

open access: yes, 2016
A limiting factor in the development of mid-infrared optics is the lack of abundant materials that are transparent, low cost, lightweight, and easy to machine. In this paper, we demonstrate a metasurface device that circumvents these limitations.
Aieta, Francesco   +11 more
core   +3 more sources

Tunable Tactile Synapses Enabled by Erasable Doping in Iongel‐Gated Nanotube Network Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Artificial tactile synaptic sensors are realized by an iongel‐gated single‐walled carbon nanotube (SWCNT) transistor with reversible doping characteristics. The device senses and memorizes tactile stimuli and exhibits gate bias‐dependent excitatory or inhibitory synaptic behavior.
Yan Huang   +5 more
wiley   +1 more source

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