نتایج جستجو برای: ترکیب plzt

تعداد نتایج: 42894  

2002
D. Young M. Linnik A. Chow A. Christou

Multiple-layer perovskite Pb0.91La0.09Zr0.65Ti0.35O3/SrTiO3 (PLZT/STO) heterostructures have been grown by pulsed laser deposition (PLD) on (001) MgO/GaAs substrates. The perovskite layers are single phase with 35nm RMS roughness on the top surface. Electrically induced birefringence in the PLZT layers, resulted in both optical phase and optical amplitude modulation. The application of an elect...

2013
Jingjiao Zhang Xiaodong Su Mingrong Shen Zhihua Dai Lingjun Zhang Xiyun He Wenxiu Cheng Mengyu Cao Guifu Zou

Converting light energy to electrical energy in photovoltaic devices relies on the photogenerated electrons and holes separated by the built-in potential in semiconductors. Photo-excited electrons in metal electrodes are usually not considered in this process. Here, we report an enhanced photovoltaic effect in the ferroelectric lanthanum-modified lead zirconate titanate (PLZT) by using low work...

2012
S. K. SINHA

Lanthanum substituted lead zirconate titanate (PLZT) nanocrystallite with stichometry formula Pb0.90La0.10 (Zr0.52Ti0.48) O3 have been synthesized by sol gel process. The effect of nanocrystallite on dielectric, ferroelectric and piezoelectric properties of La substituted PZT was studied. The average crystallite size of the PLZT powder was 21nm.Variation of dielectric constant with temperature ...

Journal: :IEICE Transactions 2012
Kunitaka Ashizawa Takehiro Sato Kazumasa Tokuhashi Daisuke Ishii Satoru Okamoto Naoaki Yamanaka Eiji Oki

This paper proposes a scalable active optical access network using high-speed Plumbum Lanthanum Zirconate Titanate (PLZT) optical switch/splitter. The Active Optical Network, called ActiON, using PLZT switching technology has been presented to increase the number of subscribers and the maximum transmission distance, compared to the Passive Optical Network (PON). ActiON supports the multicast sl...

2013
Felix Y Lee Hwan Ryul Jo Christopher S Lynch Laurent Pilon

This paper is concerned with direct conversion of waste heat into electricity by executing the Olsen cycle on lead lanthanum zirconate titanate (PLZT) ceramics undergoing a relaxor–ferroelectric phase transition. The Olsen cycle consists of two isothermal and two isoelectric field processes. First, the temperature-dependent dielectric properties were measured for x/65/35 PLZT. The polarization ...

2008
Masahiro Hayashitani Teruo Kasahara Daisuke Ishii Yutaka Arakawa Satoru Okamoto Naoaki Yamanaka Naganori Takezawa Keiichi Nashimoto

We design and implement an optical slot switching network for bulk content transfer. To realize the slot switching network, we employ the generalized multiprotocol label switching (GMPLS) extension protocol to reserve and release slots dynamically according to the application. We use optical switches as relay points in the slot switching network, and we employ a 10 ns highspeed Pb,La Zr,Ti O3 (...

Journal: :Journal of Advanced Ceramics 2021

Abstract The paper introduces a model of dielectric breakdown strength. integrated thermal and defect models, representing the relationship between electric field ferroelectric films dimensional parameters operating temperature. This is verified with experimental results lead lanthanum zirconate titanate (PLZT) various film thickness ( d = 0.8–3 μm), electrode area A 0.0020–25 mm 2 ) tested und...

Journal: :Journal of Materials Science 2022

Designing dielectric nanocomposite films with excellent properties is of strategic importance for a variety applications requiring pressure sensing, energy harvesting and storing, biomedical technology. Hence, the present investigation aims at studying lead lanthanum zirconate titanate (PLZT)/poly(vinylidene fluoride) (PVDF) based membranes fabricated using traditional electrospinning technique...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده علوم پایه 1387

در این پژوهش خواص الکترونی و اپتیکی ترکیب فرّوالکتریک pb0.91la0.09(zr0.66ti0.33)o3 (plzt) مورد بررسی قرار گرفت. در بررسی ها از کد wien2k و تقریب شیب تعمیم یافته (gga) در چهارچوب نظریه ی تابعی چگالی(dft) استفاده شده است. ساختار نواری انرژی و چگالی حالت های کلی و جزئی ترکیب محاسبه و اثر اتم لانتانیوم در ساختار نواری انرژی و چگالی حالت ها بررسی شد. برای این ترکیب گاف انرژی مستقیمی در حدود ev29/2 ...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1986

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