نتایج جستجو برای: tmah

تعداد نتایج: 145  

Journal: :IEEJ Transactions on Sensors and Micromachines 2000

Journal: :Journal of Photopolymer Science and Technology 2022

This work explores the application of alternative developer solutions (“developers”) with aim understanding their potential effectivity in reduction resist-based stochastic pattern defects (or “stochastic defects”) extreme ultraviolet lithography (EUVL). Specifically, a quaternary ammonium hydroxide type aqueous developer; ethyltrimethylammonium (ETMAH) comparison to industry de facto standard ...

Journal: :Journal of Analytical and Applied Pyrolysis 2022

Tetramethylammonium hydroxide (TMAH) thermochemolysis has been utilized by the Curiosity rover’s Sample Analysis at Mars (SAM) instrument and will be ExoMars 2022′s Organic Analyzer (MOMA) instrument. TMAH is one of main techniques that enables detection bioindicators when it combined with pyrolysis-gas chromatography mass spectrometry (Py-GC/MS) surface Mars. This study identifies products tar...

Journal: :Journal of Physics D 2021

Abstract Self-assembled AlGaN nanowires (NWs) are regarded as promising structures in the pursuit of ultraviolet photodetectors (UV PDs). However, NW-based PDs currently suffer from degraded performance partially due to existence outstanding surface-related defects/traps a result their large surface-to-volume-ratio. Here, we propose an effective passivation approach suppress such surface states...

Journal: :IEEJ Transactions on Sensors and Micromachines 1998

Journal: :Catalysts 2022

Using organic-base tetramethylammonium hydroxide (TMAH) is a viable, cheap, and fast option for the synthesis of MgZnAl-LDH-type materials by both co-precipitation mechano-chemical methods. TMAH presents several advantages, such as smaller quantity water required in washing step compared to use inorganic alkalis, prevention LDH contamination with alkali cations, its action template molecule tex...

Journal: :Advanced Optical Materials 2023

The sidewall condition is a key factor determining the performance of micro-light emitting diodes (µLEDs). In this study, equilateral triangular III-nitride blue µLEDs are prepared with exclusively m-plane surfaces to confirm impact conditions. It found that inductively coupled plasma-reactive ion etching (ICP-RIE) causes surface damages and results in rough morphology. As confirmed by time-res...

Journal: :Journal of chromatography. A 2009
Tetsuro Yuzawa Chuichi Watanabe Shin Tsuge Robert R Freeman Ron Matherly

The determination of trace organophosphonates which are used in cooling towers as a scale inhibitor usually involves extraction and/or concentration of the target components prior to analysis. The extracts are analyzed using chromatographic or spectroscopic methods. This methodology is not only cumbersome but also results in poor data quality. This work presents a novel approach for the rapid a...

Journal: :Marine environmental research 2005
Myrna J Simpson Benny Chefetz Ashish P Deshmukh Patrick G Hatcher

In this study, we examined the distribution of polycyclic aromatic hydrocarbons (PAHs) in a contaminated coastal area and the characteristics of the natural organic matter in tandem. We present a detailed study of PAH concentration, distribution, and organic matter characteristics of three core samples from Pensacola Bay, Florida. Solid-state 13C Nuclear Magnetic Resonance (NMR), pyrolysis gas ...

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