Results 41 to 50 of about 4,153 (244)

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Expansion of Dolomitic Rocks in TMAH and NaOH Solutions and Its Root Causes

open access: yesMaterials, 2020
In this paper, a tetramethylammonium hydroxide (TMAH) solution and homemade cement without alkali were used to eliminate the influence of the alkali-silica reaction (ASR) on the expansion of dolomitic rocks, and a NaOH solution was used as a comparison ...
Huan Yuan   +4 more
semanticscholar   +1 more source

EFFECT OF POTASSIUM ION ON ANISOTROPY OF TMAH

open access: yesIEEJ Transactions on Sensors and Micromachines, 2000
We have clarified the effect of potassium ion addition to TMAH solution on orientation dependence of etching rate in silicon anisotropic etching and etched surface roughness. Hemispherical specimen of single crystal silicon and wagon wheel pattern were used for experiments.
Tabata, Osamu   +3 more
openaire   +2 more sources

Spin‐On SiOx‐Assisted Inkjet Printing for Interdigitated n+ and p+ Poly‐Si/SiOx Contacts in Silicon Solar Cells With Suppressed Unintended Doping

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents an innovative spin‐on SiOx‐assisted inkjet‐printed approach to form localized n+ and p+ poly‐Si/SiOx passivating contacts for high‐efficiency silicon solar cells within a single‐annealing step. The developed process results in a well‐defined interdigitated doping pattern, with unintended doping and cross‐doping concentrations ...
Jiali Wang   +8 more
wiley   +1 more source

Improved TMAH Si-etching solution without attacking exposed aluminum

open access: yes, 2000
In this paper, an improved Tetramethyl Ammonium Hydroxide (TMAH) etching method is reported. The process features higher silicon etching rate and resulting in smooth silicon surface and at the same time, no significant aluminum etching is observed.
Yan, Gui zhen   +4 more
core   +1 more source

GC-MS data with TMAH derivatization (raw files)

open access: yes, 2022
Raw files of GCMS data with TMAH derivatization of secondary mineral deposits in Craters of the Moon National Monument and ...
Margaret Weng (13104891)
core   +1 more source

UASB处理液晶面板显影液废水中试研究

open access: yesGongye shui chuli, 2023
液晶面板显影液废水的主要污染成分是四甲基氢氧化铵(TMAH),该有机物具有强碱性和神经毒性。采用升流式厌氧污泥床(UASB)对实际显影液废水进行中试处理,考察了不同处理负荷下的TOC处理效果以及有机氮的转化效率。结果表明,在进水TMAH质量浓度为2 070~8 900 mg/L时,经UASB处理后,出水TMAH质量浓度低于0.5 mg/L,TOC去除率保持在96.4%以上;UASB不仅能有效去除显影液废水中的TMAH,还可大幅降低出水有机物浓度;UASB在高进水TMAH浓度工况下仍能长期稳定运行 ...
肖凡
doaj  

Recovery of Fatty Acids from Mineralogic Mars Analogs by TMAH Thermochemolysis for the Sample Analysis at Mars Wet Chemistry Experiment on the Curiosity Rover

open access: yesAstrobiology, 2019
The Mars Curiosity rover carries a diverse instrument payload to characterize habitable environments in the sedimentary layers of Aeolis Mons. One of these instruments is Sample Analysis at Mars (SAM), which contains a mass spectrometer that is capable ...
A. Williams   +21 more
semanticscholar   +1 more source

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

open access: yesAdvanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard   +7 more
wiley   +1 more source

Effect of tetramethylammonium hydroxide/isopropyl alcohol wet etching on geometry and surface roughness of silicon nanowires fabricated by AFM lithography

open access: yesBeilstein Journal of Nanotechnology, 2016
The optimization of etchant parameters in wet etching plays an important role in the fabrication of semiconductor devices. Wet etching of tetramethylammonium hydroxide (TMAH)/isopropyl alcohol (IPA) on silicon nanowires fabricated by AFM lithography is ...
Siti Noorhaniah Yusoh   +1 more
doaj   +1 more source

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