نتایج جستجو برای: spin coating

تعداد نتایج: 158025  

Journal: :Chemical communications 2012
Hiroko Yamada Chika Ohashi Tatsuya Aotake Shuhei Katsuta Yoshihito Honsho Hiroo Kawano Tetsuo Okujima Hidemitsu Uno Noboru Ono Shu Seki Ken-ichi Nakayama

Hole mobility was evaluated by top-contact bottom gate field effect transistor and time resolved microwave conductivity measurements in 2,6-dithienylanthracene and hexyl-substituted 2,6-dithienylanthracene films prepared by spin-coating of their α-diketone precursors followed by photoirradiation, revealing enough high potentials for semiconducting films with charge carrier mobilities of 0.8-0.9...

2013
Yi-Hsuan Lai Timothy C King Dominic S Wright Erwin Reisner

Photoactive in one step! A nanocomposite water-oxidation photocatalyst was assembled by a straightforward and one-step spin-coating procedure of a Ti- and Ni-containing molecule on nanostructured WO3. The photoanode oxidizes water to O2 with good activity and stability in alkaline solution, and thereby features light absorption, charge separation and water-oxidation catalysis (see scheme).

Journal: :Chemical communications 2015
Hua Dong Zhaoxin Wu Bin Xia Jun Xi Fang Yuan Shuya Ning Lixin Xiao Xun Hou

A highly-efficient inverted heterojunction perovskite solar cell was prepared. A homogeneous and compact perovskite (CH3NH3PbI3) layer was prepared via a two-step solution deposition method, and subsequently a double-layer PCBM film was deposited by a sequential spin-coating/vapor deposition process as the electron transport layer. The optimised device could achieve a 12.2% (average 11.09%) eff...

Journal: :Chemical communications 2012
Frederik Goethals Mikhail R Baklanov Ivan Ciofi Christophe Detavernier Pascal Van der Voort Isabel Van Driessche

A new strategy to seal mesoporous low-k thin films with a pore size of 3 nm has been developed. This is achieved by spin-coating of a self-assembled carbon-bridged organosilica layer followed by a grafting with hexamethyl disilazane.

Journal: :Journal of Teaching and Learning Physics 2017

Journal: :Nanoscale 2014
Chia-Min Chen Yi-Jiun Huang Kung-Hwa Wei

The spatial arrangement of metal nanoparticle (NP) arrays in block copolymers has many potential applications in OFET-type memory devices. In this study, we adopted a trapping approach in which we used a monolayer thin film of polystyrene-block-poly(4-vinylpyridine) (PS56k-b-P4VP8k)-a highly asymmetric diblock copolymer having a spherical micelle morphology-to incorporate various amounts of one...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1386

در این پروژه رفتار مکانیکی و چسبندگی پوشش های ایجاد شده به روش چرخشی مورد بررسی قرار گرفته است. در گام نخست، جهت ایجاد پوشش های نازک میکرونی بر سطح شیشه دستگاه اسپینر ساخته شد. در ادامه، نظر به ماهیت فرآیند پوشش دهی چرخشی و تاثیر پارامترهای ریولوژیکی ماده، برر ضخامت پوشش در این روش، با هدف دست یابی به ضخامت های بالاتر و بررسی اثر این پارامتر در خصوصیات مکانیکی پوشش، دو نوع پوشش پلیمری پلی استر ...

2014
Jacobus J. van Franeker Daniel Westhoff Mathieu Turbiez Martijn M. Wienk Volker Schmidt René A. J. Janssen

Organic electronic devices are often made by solution processing a multi-component ink. During solution processing, e.g. via spin coating, the solvent evaporates and the solid components deposit on the substrate. The morphology of this layer can range from wellmixed to extensively phase separated. To optimize device performance, it is essential to 2 control the degree and dominant length scale ...

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