نتایج جستجو برای: swnt 8

تعداد نتایج: 656027  

Journal: :Global Journal of Science Frontier Research 2022

We will study the competitive effect between transport of a quantum dot adsorbed to ballistic channel and laterally coupled single-walled carbon nanotube (SWNT). use “tight-binding" approach analytically write SWNT Green's function be solved by atomic method for. present curves electronic density states for some different sizes nanotubes. The results conductance presented as values n hopping dot.

2016
Reto Haggenmueller Fangming Du John E. Fischer Karen I. Winey

An interfacial polymerization method for nylon 6,6 was adapted to produce nanocomposites with single wall carbon nanotubes (SWNT) via in situ polymerization. SWNT were incorporated in purified, functionalized or surfactant stabilized forms. The functionalization of SWNT was characterized by FTIR, Raman spectroscopy and TGA and the SWNT dispersion was characterized by optical microscopy before a...

Journal: :Nanotechnology 2011
Kristy J Kormondy Paul Stokes Saiful I Khondaker

We report the fabrication and electron transport investigation of individual local-gated single-walled carbon nanotube field effect transistors (SWNT-FET) with high yield using a semiconducting-rich carbon nanotube solution. The individual semiconducting nanotubes were assembled at the selected position of the circuit via dielectrophoresis. Detailed electron transport investigations on 70 devic...

Journal: :Nanotechnology 2010
Liangbing Hu Jianfeng Li Jun Liu George Grüner Tobin Marks

We study in detail here the application of transparent, conductive carbon single-wall nanotube (SWNT) networks as electrodes in flexible organic light-emitting diodes (FOLEDs). Overall comparisons of these networks to the commonly used electrodes poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and indium tin oxide (ITO) are made, and SWNT networks are shown to have excellen...

Journal: :Physical review letters 2010
Yosuke Kanai Vaikunth R Khalap Philip G Collins Jeffrey C Grossman

Motivated by recent experiments, we investigate how NO3-SWNT interactions become energetically favorable with varying oxidation state of a single-walled carbon nanotube (SWNT) using first-principles calculations. Chemisorption becomes less endothermic with respect to physisorption when the SWNT oxidation state is elevated. Importantly, the dissociative incorporation of an oxygen atom into the S...

ژورنال: نانو مواد 2015
بزرگمهر مداح حمید پزشک سمیه فرهنگ دهقان فریده گلبابایی مسعود لطیفی مهدی حسن‌زاده

تخلخل به عنوان نسبت حجم فضاهایی خالی به حجم کل فیلتر، یکی از مهمترین مشخصه‌های فیلتراسیون در نظر گرفته می‌شود. مطالعه حاضر اثر افزودن نانولوله کربنی تک‌جداره (SWNT) بر میزان تخلخل فیلترهای نانولیفی بی‌بافت پلیمری حاصل از فرآیند الکتروریسی را مورد بررسی قرار می‌دهد. بدین منظور دو نوع محلول الکتروریسی آماده گردید. طرح آزمایش از طریق روش رویه پاسخ تهیه شد که در آن پارامترهای الکتروریسی شامل غلظت م...

2011
Lei Wang Mingyue Zhang Nan Zhang Jinjin Shi Hongling Zhang Min Li Chao Lu Zhenzhong Zhang

BACKGROUND Single-walled carbon nanotubes (SWNT) are poorly soluble in water, so their applications are limited. Therefore, aqueous solutions of SWNT, designed by noncovalent functionalization and without toxicity, are required for biomedical applications. METHODS In this study, we conjugated docetaxel with SWNT via π-π accumulation and used a surfactant to functionalize SWNT noncovalently. T...

Journal: :research in pharmaceutical sciences 0

single-walled carbon nanotubes (swnts) are among the promising nano-devices for delivery of therapeutic agents. yet the drastic hydrophobic natures of swnts make their handling and hence application difficult.several researches have been conducted to make them more hydrophilic and water dispersible and less toxic. among the different approaches, dispersion methods exploit different reagents suc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده فناوری های نو 1390

چکیده: در این پایان نامه، بر روی دیواره نانوله های کربنی تک دیواره (swnt)، گروه کربوکسیلیک اسید ایجاد می گردد که از طریق آن، داروی آزیترومایسین به دیواره swnt متصل می شود و هم چنین گروه آمینواسید جهت اتصال پلی پپتیدها و پروتئین ها بر روی دیواره swnt ایجاد می گردد. در پایان، به بررسی سنتز کوئین اکسالین ها در حضور ویتامین b1 به عنوان یک کاتالیست طبیعی عاری از یون فلز تحت امواج ماوراء صوت پرداخ...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Liang Zhang Daniel E Resasco

A series of SWNT arrays have been constructed by disproportionation of carbon monoxide on Co-Mo catalyst films deposited on flat Si wafer substrates. The arrays include a two-dimensional SWNT thin film prepared by spraying a SWNT suspension, as well as random SWNT networks, and vertically aligned SWNT. In addition, a novel SWNT array has been developed and termed SWNT "pillars". These pillars a...

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