نتایج جستجو برای: vacuum electronic devices

تعداد نتایج: 448868  

Journal: :Advanced materials and technologies 2022

The deposition of transparent conductive oxides (TCO) usually employs harsh conditions that are frequently harmful to soft/organic underlayers. Herein, successful use an industrial pulsed laser (PLD) tool directly deposit indium tin oxide (ITO) films on semitransparent vacuum-deposited perovskite solar cells without damage the device stack is demonstrated. morphological, electronic, and optical...

2013
Hai Huang Vadim M. Agafonov Hongyu Yu

This article reviews the development of a new category of motion sensors including linear and angular accelerometers and seismometers based on molecular electronic transducer (MET) technology. This technology utilizes a liquid not only as an inertial mass, but also as one of the main elements in the conversion of mechanical motion into electric current. The amplification process is similar to t...

Journal: :Physical chemistry chemical physics : PCCP 2014
Chloe Argent Dearden Marc Walker Nicola Beaumont Ian Hancox Natalie K Unsworth Paul Sullivan Chris F McConville Tim S Jones

We demonstrate hybrid organic photovoltaic (HOPV) bilayer devices with very high open circuit voltages (VOC) of 1.18 V based on a sol-gel processed zinc oxide (ZnO) acceptor and a vacuum deposited boron subphthalocyanine chloride (SubPc) donor layer. X-ray photoelectron spectroscopy (XPS) and Kelvin Probe (KP) measurements of the ZnO/SubPc interface show that the ZnO preparation conditions have...

Journal: :Dalton transactions 2014
Uttam Kumar Ghorai Swati Das Subhajit Saha Nilesh Mazumder Dipayan Sen Kalyan Kumar Chattopadhyay

In the current report, chemically synthesized copper phthalocyanine (CuPc) nanotubes are shown to exhibit unprecedentedly well cold cathode emission characteristics with turn-on field (3.2 V μ m(-1)) and stable emission during long intervals (200 min). Simulation of electric field distribution via finite element method around an isolated nanotube emitter in a manner parallel to the experimental...

2017
Harish Kumar

The most significant process for optical coating is variant of vacuum deposition. Zinc sulphide having direct and large band gap which is use in opto electronics. By using ZnS material in thermal evaporation technique and characterizing the minimum reflectance and maximum transmittance in visible wavelength and energy gap increases with increasing thickness having direct and large band gap. Whe...

2013
J. Puigdollers D. Soler J. Bertomeu

Hydrogenated nanocrystalline silicon obtained by Hot-Wire Chemical Vapour Deposition has been incorporated as the active layer in bottom-gate thin-film transistors. These devices were electrically characterised by measuring in vacuum the output and transfer characteristics for different temperatures. The field-effect mobility showed a thermally activated behaviour which could be attributed to p...

2015
Katsuyuki Fukutani

5:40pm NM-MoE1 Interfacial Chemistry between gas-phase molecules and GaAs surfaces: morphology dependence, Sylwia Ptasinska, XQ. Zhang, University of Notre Dame A detailed understanding of molecular interactions at the interface of twodimensional GaAs systems under ultra-high vacuum (UHV) conditions has been achieved over the decades. While research on the understanding of such interactions wit...

2015
Jinbo Chen Xiaogang Han Zhiqiang Fang Fan Cheng Bin Zhao Pengbo Lu Jun Li Jiaqi Dai Steven Lacey Raphael Elspas Yuhao Jiang Detao Liu Liangbing Hu

Transparent paper is an alternative substrate for electronic devices due to its unique properties. However, energy-intensive and/or time-consuming procedures currently limit the scalable production of transparent paper. In this report, we demonstrate a rapid process to fabricate optically transparent paper with regenerative cellulose fibers (RCFs) by employing a dissolving-debonding strategy. T...

Journal: :Science 1998
Fujisawa Oosterkamp van der Wiel WG Broer Aguado Tarucha Kouwenhoven

A double quantum dot device is a tunable two-level system for electronic energy states. A dc electron current was used to directly measure the rates for elastic and inelastic transitions between the two levels. For inelastic transitions, energy is exchanged with bosonic degrees of freedom in the environment. The inelastic transition rates are well described by the Einstein coefficients, relatin...

Journal: :Optical Materials Express 2021

Lead halide perovskites (LHPs) have made impressive progress in solid-state optoelectronics by virtue of their excellent electronic and optical features. In the past few years, light-emitting diode (LED) adopting LHP emitters reached a comparable level external quantum efficiency (EQE) with organic colloidal dot LED counterparts. Apart from solution-processing, all-inorganic CsPbX 3 LEDs can al...

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