نتایج جستجو برای: schottky barrier

تعداد نتایج: 91848  

2016
Fangming Jin Zisheng Su Bei Chu Pengfei Cheng Junbo Wang Haifeng Zhao Yuan Gao Xingwu Yan Wenlian Li

In this work, we describe the performance of organic Schottky barrier solar cells with the structure of ITO/molybdenum oxide (MoOx)/boron subphthalocyanine chloride (SubPc)/bathophenanthroline (BPhen)/Al. The SubPc-based Schottky barrier solar cells exhibited a short-circuit current density (Jsc) of 2.59 mA/cm(2), an open-circuit voltage (Voc) of 1.06 V, and a power conversion efficiency (PCE) ...

Journal: :The Transactions of The Korean Institute of Electrical Engineers 2017

K. K. Chattopadhyay P. Datta P.K. Kalita Rh. Saikia,

CdSe nanostructures were synthesized by using green chemical route as starch was used as capping agent. XRD, HR-TEM, SEAD, UV and PL studies were made for structural and optical properties of the prepared sample. Film morphology and the thickness measurement of n-CdSe were carried out with AFM analysis. I-V characteristics curve of this junction confirmed the formation of Schottky contact betwe...

2013
Richard Lossy Hervé Blanck Joachim Würfl

Motivation AlGaN/GaN HEMT rf transistors are rapidly developing due to their high output power density, high operation voltage and high input impedance. Ni-based gate metallization is widely used to form the Schottky gate contacts. However, temperature and electric field levels are higher in AlGaN/GaN compared to traditional III-Vs and therefore the diffusion of Ni into AlGaN/GaN constitutes a ...

2005
E. M. Dizhur A. Ya. Shul ’ man I. N. Kotel ’ nikov A. N. Voronovsky

The theory of tunnel current-voltage (I-V ) characteristics of metal-semiconductor junctions based on the self-consistent solution of Poisson equation allows to get the Schottky-barrier height and the charged impurity concentration directly from the tunneling data. This approach was applied to the analysis of the low temperature experiments on tunneling under pressure up to 3GPa in a piston-cyl...

2012
Shriram Shivaraman Lihong H. Herman Farhan Rana Jiwoong Park Michael G. Spencer

In this work, we study electron transport across the heterojunction interface of epitaxial few-layer graphene grown on silicon carbide and the underlying substrate. The observed Schottky barrier is characterized using current-voltage, capacitance-voltage and photocurrent spectroscopy techniques. It is found that the graphene/SiC heterojunction cannot be characterized by a single unique barrier ...

1999
E. T. Yu X. Z. Dang P. M. Asbeck S. S. Lau G. J. Sullivan

The role of spontaneous and piezoelectric polarization in III–V nitride heterostructures is investigated. Polarization effects and crystal polarity are reviewed in the context of nitride heterostructure materials and device design, and a detailed analysis of their influence in nitride heterostructure field-effect transistors is presented. The combined effects of spontaneous and piezoelectric po...

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