Search query: TAG Crystal growth

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abstract: Recent progress in the development of organic semiconductor materials has improved the performance of both p and n type transistors. Currently, it is anticipated that the next step in the evolution of electronics will be to establish a reliable fabrication technique for integrated electronic devices such as plastic sensor films and radio frequency identification (RFID) tags. Herein, a new fabrication process to grow line shaped organic single crystalline films with widths on the order of one mm is reported. To realize large scale complementary logic circuits, it is necessary to precisely control the growth conditions of p type and n type semiconductors when painting on different areas on the same substrate. This method makes it possible to fabricate highly oriented organic thin films elongated over a few millimeters for both p and n type semiconductors next to one another. The p type and n type semiconductor crystals grown by this technique exhibit excellent average mobilities of 4.9 cm2 V 1 s 1 and 0.16 cm2 V 1 s 1 respectively. A prototypical RFID tag based on single crystals fabricated with the presented technique is also demonstrated. This tag was able to transfer 4 bit digital signals including the information from a temperature sensor through near field wireless communication at the commercially usable frequency of 13.56 MHz.
author_names: Akifumi Yamamura

Hiroyuki Matsui

Mayumi Uno

Nobuaki Isahaya

Yuki Tanaka

Makoto Kudo

Masataka Ito

Chikahiko Mitsui

Toshihiro Okamoto

Jun Takeya
title: Painting Integrated Complementary Logic Circuits for Single Crystal Organic Transistors: A Demonstration of a Digital Wireless Communication Sensing Tag
year: 2017

abstract: Vis NIR magneto optical crystals are the key materials in the fields of optical fiber communication, smart grids, optical fiber lasers, and so on. In this paper, the incongruent melting Tb3Al5O12 (TAG) single crystals with centimeter size and high quality were grown rapidly by an EFG method with the suitable design of a melt component. The effects of the sintering temperature of polycrystalline materials, the melt component, and the growth rate on the crystal quality were discussed in detail. The Verdet constants, hardness, thermal expansion coefficients, specific heat capacities, and thermal diffusivities of TAG crystal were measured. The results show that the Verdet constant of the TAG crystal is 8 30% larger than those of Tb3Sc2Al3O12 (TSAG) and Tb3Ga5O12 (TGG) crystals. Additionally, the TAG crystal also has the advantage in both thermal conductivity and hardness. Therefore, the TAG crystal has good comprehensive performance and thus has important application prospects.
author_names: Haipeng Liu

Guang Zhan

Gonghui Wu

Caigen Song

Xuan Wu

Qianrui Xu

Xin Chen

Xiaoling Hu

Naifeng Zhuang

Jianzhong Chen
title: Improved Edge Defined Film Fed Growth of Incongruent Melting Tb3Al5O12 Crystal with High Magneto Optical and Thermal Performances
year: 2019

abstract: The aim of the present study was to obtain the crystal of transcription factor LytR of streptococcus pneumoniae for X ray crystal structure and function analysis. The LytR gene of D39 strains from Streptococcus pneumoniae (S. pn) was cloned into the prokaryotic expression vector pET32a( then overexpression was obtained in the E. coli BL21 (DE3) through transformation of the recombinant plasmid that had been verified by colony PCR and sequencing. Soluble fusion protein with His tag highly expressed by the induction of 0.5 mmol/L IPTG and was purified by a three step procedure, the purity of the purified LytR recombinant protein was over 90% Preliminary screening of crystallization conditions was performed using the hanging drop vapour diffusing method with Hampton Crystal screen and PEG screen kits. The protein crystals X ray diffraction data were collected from a single crystal and more stick crystals whose X ray diffraction reached 4.0 A were obtained. These works laid the foundation for further research on the 3D structure of putative transcription factor LytR and its biological aspects.
author_names: Xun Min

Wen Zhong

Shasha Zhao

Jie Dong

Shanshan Dong

Aie Zhou

Wenjuan Yan

Deqiang Wang
title: [Studies on expression, purification, crystal growth and optimization of putative transcription factor LytR from Streptococcus pneumoniae]
venue: Sheng wu yi xue gong cheng xue za zhi Journal of biomedical engineering Shengwu yixue gongchengxue zazhi
year: 2013

abstract: The film thickness dependence of crystal growth is investigated for isotactic polystyrene (it PS) in thin films for thicknesses from 20 down to 4 nm. The single crystals of it PS grown at 180degC in the ultrathin films show a morphology typical of diffusion controlled growth: dense branching morphology and fractal seaweed. The characteristic length of the morphology, i.e. the width of the branch, increases with decreasing film thickness. The thickness dependence of the crystal growth rate shows a crossover around the lamellar thickness of 8 nm. The thickness dependences of the growth rate and morphology are discussed in terms of the diffusion of chain molecules in thin films.
author_names: Ken Taguchi

Hideki Miyaji

Kunihide Izumi

Akitaka Hoshino

Yoshihisa Miyamoto

Ryohei Kokawa
title: CRYSTAL GROWTH OF ISOTACTIC POLYSTYRENE IN ULTRATHIN FILMS: FILM THICKNESS DEPENDENCE
year: 2001

abstract: Purification of triglycerides from fully hydrogenated palm kernel oil (FHPKO) and fully hydrogenated coconut oil (FHCNO) was performed by a chromatographic method. Lipid composition, thermal properties, polymorphism, isothermal crystallization behaviour, nanostructure and microstructure of FHPKO, FHPKO triacylglycerol (TAG) FHCNO and FHCNO TAG were evaluated. Removal of minor components had no effect on triglycerides composition. However, the presence of the minor components did increase the slip melting point and promote onset of crystallization. Furthermore, the thickness of the nanoscale crystals increased, and polymorphic transformation from b' to b occurred in FHPKO after the removal of minor components, and from a to b' in FHCNO. Sharp changes in the values of the Avrami constant K and exponent n suggested that the presence of minor components changed the crystal growth mechanism. The PLM results indicated that a coarser crystal structure with lower fractal dimension appeared after the removal of minor components from both FHPKO and FHCNO.
author_names: Xiuhang Chai

Zong Meng

Peirang Cao

Xin-Yu Liang

Michael Piatko

Shawn Campbell

Seong Koon Lo

Yuanfa Liu
title: Influence of indigenous minor components on fat crystal network of fully hydrogenated palm kernel oil and fully hydrogenated coconut oil.
venue: Food chemistry
year: 2018

abstract: PKO and CNO are composed of 97 98% triacylglycerols and 2 3% minor non triglyceride components (FFA, DAG and MAG) Triglycerides were separated from minor components by chromatographic method. The lipid composition, thermal properties, polymorphism, isothermal crystallization behavior, nanostructure and microstructure of PKO, PKO TAG, CNO and CNO TAG were evaluated. Removal of minor components had no effect on lipid composition and equilibrium solid fat contents. However, presence of minor components did increase the slip melting point and promoted the onset of crystallization from DSC crystallization profiles. The thickness of the nanoscale crystals increased with no polymorphic transformation after removing the minor components. Crystallization kinetics revealed that minor components decreased crystal growth rate with higher t1/2. Sharp changes in the values of the Avrami constant k and exponent n were observed for all fats around 10degC. Increases in n around 10degC indicated a change from one dimensional to multi dimensional growth. From the results of polarized light micrographs, the transformation from the coarser crystal structure to tiny crystal structure occurred in microstructure networks at the action of minor components.
author_names: Xiuhang Chai

Zong Meng

Jiang Jiang

Peirang Cao

Xinyu Liang

Michael Piatko

Shawn Campbell

Seong Koon Lo

Yuanfa Liu
title: Non triglyceride components modulate the fat crystal network of palm kernel oil and coconut oil.
venue: Food research international
year: 2018

abstract: Abstract Highly transparent Zr:TAG (Zr:Tb3Al5O12) ceramics were obtained by the solid state reaction after vacuum sintering (up to 82.04% at 1064 nm) Laser induced damage threshold of Zr:TAG ceramics were measured and compared to TGG (Tb3Ga5O12) crystal and ceramic. Improved optical quality and exaggerated grain growth of TAG ceramics were observed at the same time due to ZrO2 doping, which is argued to be related to the valence change of Zr4+ Zr3+ at high temperature. A detailed analysis of possible mechanisms was presented and discussed.
author_names: Jianhong Chen

Hui Lin

Deming Hao

Yanru Tang

Xuezhuan Yi

Yuan'an Zhao

Shengming Zhou
title: Exaggerated grain growth caused by ZrO2 doping and its effect on the optical properties of Tb3Al5O12 ceramics
venue: Scripta Materialia
year: 2019

abstract: Crystallization of triacylglycerols (TAGs) is studied in emulsion by time resolved synchrotron X ray diffraction as a function of temperature (XRDT) coupled with DSC on a single sample consisting of an emulsion of palm oil dispersed in water. This oil in water emulsion (20% palm oil) stabilized by food grade sodium caseinate and by propylene glycol monostearate (PGMS) a food emulsifier, is used as a model for the study of the influence of emulsifiers on both TAG polymorphism and nucleation. Thermal and structural evolutions of this TAG mixture are monitored by a XRDT/DSC technique within the droplets during its crystallization and subsequent melting. In the specific conditions used and thanks to the high flux of synchrotron light, we demonstrate that both crystallization and polymorphism of a fat mixture are influenced by the presence of PGMS. The technique is sensitive enough to detect variations induced by the presence of emulsifier amounts ranging between 0 and 0.2% Despite the low amount added, the.
author_names: Daniel J E Kalnin

Olivier Schafer

Heinz Amenitsch

Michel Ollivon
title: Fat crystallization in emulsion: Influence of emulsifier concentration on triacylglycerol crystal growth and polymorphism
year: 2004

abstract: A growing attachment: Porous coordination polymer (PCP) nanorods are synthesized by modulation of the coordination equilibria between framework components, which regulates the rate of framework extension and crystal growth. Investigation of the crystal growth mechanism by TEM indicates that face selective modulation on the surfaces of PCP crystals enhances the anisotropic crystal growth of nanorods by an oriented attachment mechanism.
author_names: Takaaki Tsuruoka

Shuhei Furukawa

Yohei Takashima

Kaname Yoshida

Seiji Isoda

Susumu Kitagawa
title: Nanoporous nanorods fabricated by coordination modulation and oriented attachment growth.
venue: Angewandte Chemie
year: 2009

abstract: TAG fibers were grown by the micro pulling down method from stoichiometric and alumina rich melts. Using the Czochralski technique polycrystalline TAG samples were obtained from alumina rich melts. It was shown that both growth methods the crystallization of TAP can be avoided by starting from a melt concerning less than 32 mol Tb2O3.
author_names: Steffen Ganschow

Boris M Epelbaum

Detlef Klimm

Akira Yoshikawa

Tsuguo Fukuda
title: Terbium aluminum garnet phase diagram and crystal growth
venue: Other Conferences
year: 1999