Imperial College London

DrKristelFobelets

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

Reader in Microelectronics Engineering
 
 
 
//

Contact

 

+44 (0)20 7594 6236k.fobelets Website

 
 
//

Assistant

 

Mrs Jay Sahote +44 (0)20 7594 6215

 
//

Location

 

714Electrical EngineeringSouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

140 results found

Fobelets K, Conductivity and 1/f noise in Si nanowire arrays, E-MRS spring meeting

CONFERENCE PAPER

Panteli C, Liu D, Sydoruk O, Fobelets Ket al., Through graphene etching of porous Si by electroless metal assisted chemical etching, MNE

CONFERENCE PAPER

shougee A, Konstantinou F, Albrecht T, Fobelets Ket al., Silicon nanowire arrays for high capacitance electrodes in room temperature ionic liquid electrolyte, 229th ECS Meeting

CONFERENCE PAPER

shougee A, Konstantinou F, Albrecht T, Fobelets Ket al., Cyclic voltammetry peaks due to deep level traps in Si nanowire array electroes, IEEE Transactions on Nanotechnology, ISSN: 1536-125X

JOURNAL ARTICLE

Delgado Notario JA, Javadi E, Calvo-Gallego J, Diez E, Velazquez JE, Meziani YM, Fobelets Ket al., 2017, Sub-Micron Gate Length Field Effect Transistors as Broad Band Detectors of Terahertz Radiation, 5th Russia-Japan-USA-Europe Symposium on Fundamental and Applied Problems of Terahertz Devices and Technologies (RJUSE-TeraTech), Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: 87-95, ISSN: 1793-1274

CONFERENCE PAPER

Konstantinou F, Shougee A, Albrecht T, Fobelets Ket al., 2017, TiO2 coated Si nanowire electrodes for electrochemical double layer capacitors in room temperature ionic liquid, JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol: 50, ISSN: 0022-3727

JOURNAL ARTICLE

Qiao L, Shougee A, Albrecht T, Fobelets Ket al., 2016, Oxide-coated silicon nanowire array capacitor electrodes in room temperature ionic liquid, ELECTROCHIMICA ACTA, Vol: 210, Pages: 32-37, ISSN: 0013-4686

JOURNAL ARTICLE

Delgado-Notario JA, Meziani YM, Velazquez-Perez JE, Fobelets Ket al., 2015, Optimization of THz response of strained-Si MODFETs, E-MRS Spring Meeting / Symposium H / Symposium I / Symposium BB / Symposium FF / Symosium D, Publisher: WILEY-V C H VERLAG GMBH, Pages: 1401-1404, ISSN: 1862-6351

CONFERENCE PAPER

Meziani YM, Morozov S, Notario JAD, Maremyanin K, Velazquez JE, Fobelets Ket al., 2015, Enhancement of sub-terahertz detection by drain-to-source biasing on strained silicon MODFET devices, 19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (EDISON '19), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588

CONFERENCE PAPER

Rahman T, Fobelets K, 2015, Efficient tool flow for 3D photovoltaic modelling, COMPUTER PHYSICS COMMUNICATIONS, Vol: 193, Pages: 124-130, ISSN: 0010-4655

JOURNAL ARTICLE

Fobelets K, Meghani M, Li C, 2014, Influence of Minority Carrier Gas Donors on Low-Frequency Noise in Silicon Nanowires, IEEE TRANSACTIONS ON NANOTECHNOLOGY, Vol: 13, Pages: 1176-1180, ISSN: 1536-125X

JOURNAL ARTICLE

Fobelets K, Utke I, 2014, Nano Fabrication 2013 Preface, MICROELECTRONIC ENGINEERING, Vol: 121, Pages: VII-VII, ISSN: 0167-9317

JOURNAL ARTICLE

Rahman T, Navarro-Cia M, Fobelets K, 2014, High density micro-pyramids with silicon nanowire array for photovoltaic applications, NANOTECHNOLOGY, Vol: 25, ISSN: 0957-4484

JOURNAL ARTICLE

Xu B, Fobelets K, 2014, Spin-on-doping for output power improvement of silicon nanowire array based thermoelectric power generators, JOURNAL OF APPLIED PHYSICS, Vol: 115, ISSN: 0021-8979

JOURNAL ARTICLE

Xu B, Khouri W, Fobelets K, 2014, Two-Sided Silicon Nanowire Array/Bulk Thermoelectric Power Generator, IEEE ELECTRON DEVICE LETTERS, Vol: 35, Pages: 596-598, ISSN: 0741-3106

JOURNAL ARTICLE

Fobelets K, Ahmad MM, Roumyantsev S, Shur Met al., 2013, Influence of ambient on conductivity and 1/f noise in Si nanowire arrays, 22nd International Conference on Noise and Fluctuations (ICNF), Publisher: IEEE

CONFERENCE PAPER

Fobelets K, Li CB, Coquillat D, Arcade P, Teppe Fet al., 2013, Far infrared response of silicon nanowire arrays, RSC ADVANCES, Vol: 3, Pages: 4434-4439, ISSN: 2046-2069

JOURNAL ARTICLE

Li C, Fobelets K, Liu C, Xue C, Cheng B, Wang Qet al., 2013, Ag-assisted lateral etching of Si nanowires and its application to nanowire transfer, APPLIED PHYSICS LETTERS, Vol: 103, ISSN: 0003-6951

JOURNAL ARTICLE

Li C, Zhang C, Fobelets K, Zheng J, Xue C, Zuo Y, Cheng B, Wang Qet al., 2013, Impact of ammonia on the electrical properties of p-type Si nanowire arrays, JOURNAL OF APPLIED PHYSICS, Vol: 114, ISSN: 0021-8979

JOURNAL ARTICLE

Meziani YM, Garcia-Garcia E, Velazquez-Perez JE, Coquillat D, Dyakonova N, Knap W, Grigelionis I, Fobelets Ket al., 2013, Terahertz imaging using strained-Si MODFETs as sensors, Solid State Electronics, Vol: 83, Pages: 113-117

We report on non-resonant (broadband) and resonant detection of terahertz radiation using strained-Si modulation doped field effect transistors. The devices were excited at room temperature by two types of terahertz sources (an electronic source based on frequency multipliers at 0.292 THz and a pulsed parametric laser at 1.5 THz). In both cases, a non-resonant response with maxima around the threshold voltage was observed. Shubnikov-de Haas and photoresponse measurements were performed simultaneously and showed a phase-shift of π/2 in good agreement with the theory, which demonstrates that the observed response is related to the plasma waves oscillation in the channel. The non-resonant features were used to demonstrate the capabilities of such devices in terahertz imaging. We also cooled our device down to 4.2 K to increase the quality factor and resonant detection was observed by using a tunable source of terahertz radiation.

JOURNAL ARTICLE

Meziani YM, Velazquez-Perez JE, Garcia-Garcia E, Coquillat D, Dyakonova N, Knap W, Grigelionis I, Fobelets Ket al., 2013, Terahertz detection using Si-SiGe MODFETs, 9th Spanish Conference on Electron Devices (CDE), Publisher: IEEE, Pages: 167-170, ISSN: 2163-4971

CONFERENCE PAPER

Rahman T, Fobelets K, 2013, Simulation of Rough Silicon Nanowire Array for use in Spin-On-Doped PN core-shell Solar Cells, UKSim-AMSS 7th European Modelling Symposium on Computer Modelling and Simulation (EMS), Publisher: IEEE, Pages: 725-729, ISSN: 2473-3539

CONFERENCE PAPER

Rahman T, Fobelets K, Meziani YM, Velazquez-Perez JEet al., 2013, Highly Doped Nanowire Array for Use in Hybrid Silicon/Polymer Junction Solar Cells, 223rd ECS Meeting

CONFERENCE PAPER

Xu B, Fobelets K, 2013, Efficiency Improvement of Silicon Nanowire Arrays (NWAs) Thermoelectric Power Generation (TEG) by Spin On Doping (SOD), 223rd ECS Meeting

CONFERENCE PAPER

Xu B, Li CB, Myronov M, Fobelets Ket al., 2013, n-Si–p-Si1−xGex nanowire arrays for thermoelectric power generation, Solid State Electronics, Vol: 83, Pages: 107-112

The output power of a discrete assembly of n-Si–p-Si1−xGex (0 ⩽ x ⩽ 0.4) thermoelectric generators is measured as a function of load resistance. The influence of Ge content and nanowire structures on the performance of thermoelectric devices is evaluated in measurements around room temperature. The nanowire arrays are etched using a metal induced local oxidation and etching process, based on self-assembled Ag nanoparticles and HF. The use of nanowires and SiGe with dimensions smaller than 30 μm, is beneficial for an improvement of, at least, a factor of 10 in the output power. However, better performance improvements can be obtained by optimising the thermal and electrical contact resistances at the interfaces. Optimisation of the electrical contact results in a performance boost by a factor of 25.

JOURNAL ARTICLE

Fobelets K, Ding P, Kiasari NM, Durrani Zet al., 2012, Electrical Transport in Polymer-Covered Silicon Nanowires, IEEE TRANSACTIONS ON NANOTECHNOLOGY, Vol: 11, Pages: 661-665, ISSN: 1536-125X

JOURNAL ARTICLE

Li C, Fobelets K, Durrani ZAK, 2012, Study of two-step electroless etched Si nanowire arrays, Applied Mechanics and Materials, Pages: 3284-3288

JOURNAL ARTICLE

Li C, Krali E, Fobelets K, Cheng B, Wang Qet al., 2012, Conductance modulation of Si nanowire arrays, APPLIED PHYSICS LETTERS, Vol: 101, ISSN: 0003-6951

JOURNAL ARTICLE

Li CB, Fobelets K, Durrani ZAK, 2012, Study of Two-step Electroless Etched Si Nanowire Arrays, 2nd International Conference on Mechanical and Aerospace Engineering (ICMAE 2011), Publisher: TRANS TECH PUBLICATIONS LTD, Pages: 3284-3288, ISSN: 1660-9336

CONFERENCE PAPER

Li CB, Xu B, Durrani ZAK, Mironov M, Fobelets Ket al., 2012, Thermoelectric characteristics of SiGe nanowire arrays as a function of Ge concentration, 9th European Conference on Thermoelectrics (ECT), Publisher: AMER INST PHYSICS, Pages: 417-420, ISSN: 0094-243X

CONFERENCE PAPER

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: respub-action=search.html&id=00156354&limit=30&person=true