{"id":4,"date":"2017-11-08T22:05:38","date_gmt":"2017-11-08T22:05:38","guid":{"rendered":"http:\/\/www.ee.uconn.edu\/necmi-biyikli\/?page_id=4"},"modified":"2024-09-25T17:09:32","modified_gmt":"2024-09-25T17:09:32","slug":"home","status":"publish","type":"page","link":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/","title":{"rendered":"Home"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-54 alignleft\" src=\"http:\/\/www.ee.uconn.edu\/wp-content\/uploads\/2018\/01\/Biyikli_Necmi.jpg\" alt=\"\" width=\"100\" height=\"150\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Professor<br \/>\nOffice: ITE 459<br \/>\nPhone: (860) 486-2666<br \/>\nEmail:\u00a0<a href=\"mailto:necmi.biyikli@uconn.edu\">necmi.biyikli@uconn.edu<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Education:<\/strong><\/p>\n<ul>\n<li>Ph.D, Electrical and Electronics Engineering, Bilkent University, 2004<\/li>\n<li>M.S., Electrical and Electronics Engineering, Bilkent University, 1996<\/li>\n<li>B.S., Electrical and Electronics Engineering, Bilkent University, 1992<\/li>\n<\/ul>\n<p><strong>Employment History<\/strong><\/p>\n<table style=\"width: 628px; height: 284px; border-color: #000000;\">\n<tbody>\n<tr style=\"height: 24px;\">\n<td style=\"width: 73px; height: 24px;\">2017 \u2013<\/td>\n<td style=\"width: 538px; height: 24px;\"><em>Assistant Professor<\/em>, Electrical and Computer Engineering, University of Connecticut<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 73px; height: 24px;\">2016 \u2013 2017<\/td>\n<td style=\"width: 538px; height: 24px;\"><em>Research Fellow<\/em>, Electrical and Computer Engineering, Utah State University<\/td>\n<\/tr>\n<tr style=\"height: 48px;\">\n<td style=\"width: 73px; height: 48px;\">2011 \u2013 2016<\/td>\n<td style=\"width: 538px; height: 48px;\"><em>Assistant Professor<\/em>, Materials Science and Nanotechnology &amp; National Nanotechnology Research Center (UNAM), Bilkent University<\/td>\n<\/tr>\n<tr style=\"height: 48px;\">\n<td style=\"width: 73px; height: 48px;\">2008 \u2013 2011<\/td>\n<td style=\"width: 538px; height: 48px;\">\u00a0<em>Research Assistant Professor<\/em>, Materials Science and Nanotechnology &amp; National Nanotechnology Research Center (UNAM), Bilkent University<\/td>\n<\/tr>\n<tr style=\"height: 48px;\">\n<td style=\"width: 73px; height: 48px;\">2007 \u2013 2008<\/td>\n<td style=\"width: 538px; height: 48px;\">\u00a0<em>Research Scientist<\/em>, Electrical and Computer Engineering, Utah State University &amp; Cornell Nanoscale Science and Technology Facility (CNF)<\/td>\n<\/tr>\n<tr style=\"height: 43px;\">\n<td style=\"width: 73px; height: 43px;\">2004 \u2013 2007<\/td>\n<td style=\"width: 538px; height: 43px;\">\u00a0<em>Postdoctoral Research Associate<\/em>, Electrical and Computer Engineering, Virginia Commonwealth University<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Research Interests:<\/strong><\/p>\n<p><u><strong>Materials &amp; Growth<\/strong><\/u><\/p>\n<ul>\n<li>III-Nitride semiconductor materials (AlN, GaN, InN)<\/li>\n<li>III-Nitride thin-film growth (Plasma-enhanced atomic layer deposition, MOCVD)<\/li>\n<li>Metal-Oxide semiconductor materials (ZnO, TiO<sub>2<\/sub>, SnO<sub>2<\/sub>)<\/li>\n<li>Metal-Oxide thin-film growth (DC\/RF-Sputtering,\u00a0atomic layer deposition)<\/li>\n<li>Piezo-electric thin-films (AlN, ZnO)<\/li>\n<li>Tunable\/smart alloys (Phase change \u2013 GST \/ Tunable dielectric \u2013 BST)<\/li>\n<li>Durable materials (BN)<\/li>\n<\/ul>\n<p><strong><u>Devices &amp; Applications<\/u><\/strong><\/p>\n<ul>\n<li><u>Opto-electronics:<\/u>\u00a0Photodetectors, LEDs based on III-Nitride compounds<u><br \/>\n<\/u><\/li>\n<li><u>Electronics:<\/u>\u00a0High-power\/high-frequency III-Nitride transistors, thin-film transistors (TFTs)<\/li>\n<li><u>Renewable energy:<\/u>\u00a0Inorganic solar cells, hybrid organic\/inorganic solar cells, dye synthesized solar cells (DSSC)<\/li>\n<li><u>Sensing:<\/u>\u00a0Chemical\/gas sensors for environmental monitoring using ZnO\/SnO2\/TiO2 nanostructures and ZnO\/AlN SAW sensors<\/li>\n<li><u>Wireless communication:<\/u>\u00a0Novel materials &amp; architectures for next-generation smart\/green wireless communication systems<\/li>\n<li><u>Functional surfaces:<\/u>\u00a0Photocatalytic coatings based on hybrid organic\/inorganic nano-structures using ALD<\/li>\n<li><u>Health monitoring &amp; Medical diagnosis:<\/u>\u00a0Biological sensors, micro-needles, Lab-on-a-Chip (LoC) devices &amp; systems<\/li>\n<li><u>National security and defense:<\/u>\u00a0Reconfigurable RF-antenna systems for agile &amp; secure communication systems<\/li>\n<\/ul>\n<p><strong>M<\/strong><strong>e<\/strong><strong>m<\/strong><strong>ber<\/strong><strong>s<\/strong><strong>h<\/strong><strong>i<\/strong><strong>p<\/strong><strong>s of Scientific Societies<\/strong><\/p>\n<p>1999 \u2013\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IEEE, MRS, AVS, SPIE<\/p>\n<p><strong>Prizes &amp; Awards<\/strong><\/p>\n<ul>\n<li>4 Student Finalist Awards by Biyikli Group members in Annual AVS-ALD Conferences\u00a0 \u00a0 \u00a0 (Boston, MA \u2013 2011; San Diego, CA \u2013 2013; Portland, OR \u2013 2015; Denver, CO \u2013 2017)<\/li>\n<\/ul>\n<ul>\n<li>Middle East Technical University (METU) Prof. Mustafa Necati Parlar Education and Research Foundation \u2013 Research Incentive Award (2013)<\/li>\n<li>European Research Executive Agency \u2013 Marie Curie Fellowship \u2013 International Re-integration Grant (MC-IRG) Award (2010)<\/li>\n<\/ul>\n<h4>Selected Publications<\/h4>\n<ol>\n<li>M. A. Khalily, N. Biyikli, <em>et<\/em> al.,<em>\u201c<\/em>Facile synthesis of three-dimensional Pt-TiO<sub>2<\/sub> nanonetworks: Highly active catalyst for hydrolytic dehydrogenation of ammonia borane<em>\u201d<\/em>, <u>Angewandte Chemie<\/u> 55, 12257 (2016).<\/li>\n<li>A. Haider, N. Biyikli, <em>et<\/em> al.,<em>\u201c<\/em>Low-temperature grown wurtzite In<sub>x<\/sub>Ga<sub>1-x<\/sub>N thin films via hollow cathode plasma-assisted atomic layer deposition<em>\u201d<\/em>, <u>Journal of Materials Chemistry (C)<\/u> 3, 9620 (2015).<\/li>\n<li>F. Kayaci, N. Biyikli, <em>et<\/em> al.,\u201cRole of zinc interstitials and oxygen vacancies of ZnO in photocatalysis: A bottom-up approach to control the defect density\u201d, <u>Nanoscale<\/u> 6, 10224 (2014).<\/li>\n<li>C. Ozgit-Akgun, N. Biyikli, <em>et<\/em> al., &#8220;Hollow-cathode plasma-assisted atomic layer deposition of crystalline AlN, GaN, and Al<sub>x<\/sub>Ga<sub>1-x<\/sub>N thin films at low temperature&#8221;, <u>Journal of Materials Chemistry (C)<\/u> 2, 2123 (2014) <strong>[<em>Front Cover Article<\/em>]<\/strong>. <u>Major breakthrough: A<\/u>\u00a0novel method for plasma-assisted ALD which enabled a dramatic decrease in impurity content of low-temperature-grown GaN thin films is proposed. Moreover, for the first time, the self-limiting growth for crystalline AlGaN alloys along with bandgap tuning is demonstrated.<\/li>\n<li>A. Haider, N. Biyikli, \u201cFabrication of BN\/AlN bishell hollow nanofibers by electrospinning and atomic layer deposition\u201d, <u>APL Materials<\/u> 2, 096109 (2014). <u>Key contribution:<\/u>\u00a0 A low-temperature process to fabricate multi-layered hollow crystalline BN\/AlN nanostructures on polymeric nanofibrous templates is developed.<\/li>\n<li>S. Bolat, N. Biyikli, <em>et<\/em> al.,\u201cLow temperature thin film transistors with hollow cathode plasma-assisted atomic layer deposition based GaN channels\u201d, <u>Applied Physics Letters<\/u> 104, 243505 (2014). <u>Major breakthrough:<\/u>\u00a0 The lowest process temperature budget (growth and fabrication @ T&lt;200\u00b0C) reported ever for GaN-based thin-film transistors by using our own hollow-cathode plasma-assisted ALD (HCPA-ALD) technique is achieved.<\/li>\n<li>C. Ozgit-Akgun, N. Biyikli, <em>et<\/em> al.,<em>\u201c<\/em>Fabrication of flexible polymer-GaN core-shell nanofibers by the combination of electrospinning and hollow cathode plasma-assisted atomic layer deposition<em>\u201d<\/em>, <u>Journal of Materials Chemistry (C)<\/u> 3, 5199 (2015). (<u>Key advance:<\/u>\u00a0 Fabricating flexible core-shell GaN nanofibers via low-temperature HCPA-ALD, which might have potential use in flexible electronics is succeeded)<\/li>\n<li>F. Kayaci, N. Biyikli, <em>et<\/em> al.,\u201cSelective isolation of the <em>electron <\/em>or <em>hole <\/em>in photocatalysis: ZnO\u2013TiO<sub>2<\/sub> and TiO<sub>2<\/sub>\u2013ZnO core-shell structured heterojunction nanofibres <em>via<\/em> electrospinning and atomic layer deposition\u201d, <u>Nanoscale<\/u> 6, 5735 (2014) <strong>[<em>Front Cover Article<\/em>]<\/strong>. (<u>Key contribution:<\/u>\u00a0 Novel core-shell metal-oxide nanofiber structures demonstrating significantly improved photocatalysis performance)<\/li>\n<li>C. Ozgit, N. Biyikli, <em>et<\/em> al.,\u201cTemplate-based synthesis of aluminum nitride hollow nanofibers via plasma-enhanced atomic layer deposition\u201d, <u>Journal of the American Ceramics Society<\/u> 96, 916 (2013).<\/li>\n<li>C. Ozgit, N. Biyikli, <em>et<\/em> al.,\u201cSelf-limiting low-temperature growth of crystalline AlN thin films by plasma-enhanced atomic layer deposition\u201d, <u>Thin Solid Films<\/u> 520, 2750 (2012). <u>Major breakthrough:<\/u>\u00a0 The self-limiting growth of crystalline AlN thin films at extremely low temperatures down to 100\u00b0C is accomplished.<\/li>\n<li>F. Kayaci, N. Biyikli, <em>et<\/em> al.,\u201cPolymer-Inorganic Core-Shell Nanofibers by Electrospinning and Atomic Layer Deposition: Flexible Nylon-ZnO Core-Shell Nanofiber Mats and Their Photocatalytic Activity\u201d, <u>ACS Applied Materials &amp; Interfaces<\/u> 4, 6185 (2012).<\/li>\n<li>H. Ceylan, N. Biyikli, <em>et<\/em> al., &#8220;Size-controlled conformal nanofabrication of biotemplated three-dimensional TiO<sub>2<\/sub> and ZnO nanonetworks&#8221;, <u>Scientific Reports<\/u>, 3, 2306 (2013). <u>Key advance:<\/u> We used the ultimate conformality and precision of our ALD recipes to coat highly 3D nano-biotemplates to craft functional metal-oxide nanomaterials and demonstrated intensely improved photocatalytic activity.<\/li>\n<li>N. Biyikli, <em>et<\/em> al.,&#8221;Magneto-transport properties of MOVPE-grown Al<sub>x<\/sub>Ga<sub>1-x<\/sub>N\/AlN\/GaN heterostructures with high-mobility two-dimensional electron gas&#8221;, <u>Journal of Applied Physics<\/u> 101, 113710 (2007). <u>Key contribution:<\/u>\u00a0 The III-nitride HEMT epilayers are grown using two different lateral overgrowth techniques and\u00a0 the low-temperature mobility values are characterized which resulted in significantly enhanced 2DEG mobility when compared to conventional HEMT structures.<\/li>\n<li>N. Biyikli, <em>et<\/em> al.,&#8221;Solar-blind AlGaN-based Schottky photodiodes with low noise and high detectivity&#8221;, <u>Applied Physics Letters<\/u> 81, 3272 (2002). <u>Key contribution:<\/u>\u00a0We demonstrated AlGaN-based Schottky photodiodes showing solar blindness with record detectivity performance approaching PMT sensitivity levels.<\/li>\n<li>N. Biyikli, et al.,&#8221;45-GHz Bandwidth-Efficiency Resonant-Cavity-Enhanced ITO-Schottky Photodiodes&#8221;, <u>IEEE Photonics Technology Letters<\/u> 13, 705 (2001). <u>Key advance:<\/u>\u00a0We developed AlGaAs\/GaAs-based RCE-Schottky photodiodes exhibiting the highest bandwidth-efficiency performance reported for vertical type of photodetectors.<\/li>\n<\/ol>\n<p>Full list of publications can be reached <a href=\"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/publications\/papers\/\">here<\/a>.<\/p>\n<p><strong>Invited Talks at Peer-Reviewed International Conferences (Since 2013)<\/strong><\/p>\n<ul>\n<li>Biyikli, A. Haider, P. Deminskyi, \u201c<strong>Self-aligned nanoscale processing solutions via selective atomic layer deposition of oxide, nitride, and metallic films<\/strong>\u201d, <u>SPIE Optics + Photonics 2017<\/u>, San Diego, CA, 6 \u2013 10 August (2017).<\/li>\n<li>Biyikli <em>et<\/em> al.,\u201cLow-temperature plasma-assisted atomic layer deposition growth technology for group III-Nitride hetero-\/nano-structures and their\u00a0(opto)electronic device applications\u201d, <u>AVS 63<sup>rd<\/sup> International Symposium and Exhibition<\/u>, Nashville, TN, 6 \u2013 11 November (2016).<\/li>\n<li>Biyikli <em>et<\/em> al.,\u201cTemplate-assisted synthesis of III-nitride and metal-oxide nano-heterostructures using low-temperature atomic layer deposition for energy, sensing, and catalysis applications\u201d, <u>SPIE Optics + Photonics 2015<\/u>, San Diego, CA, 9 \u2013 13 August (2015).<\/li>\n<li>Biyikli, <em>et<\/em> al.,\u201cHollow-cathode plasma-assisted atomic layer deposition: a novel route for low-temperature synthesis of crystalline III-nitride thin films and nanostructures\u201d, <u>IEEE 35<sup>th<\/sup> International Conference on Electronics and Nanotechnology (IEEE-ELNANO)<\/u>, Kyiv, Ukraine, April 21-24 (2015).<\/li>\n<li>Alevli, N. Biyikli, <em>et<\/em> al., \u201cEffect of Reactor Pressure on The Optical and Electrical Properties of HP-CVD Grown InN Films\u201d, <u>MRS \u2013 5<sup>th<\/sup> International Symposium on Growth of III-Nitrides (ISGN-5)<\/u>, Atlanta, GA, May 18-22 (2014).<\/li>\n<li>Ozgit-Akgun, N. Biyikli, <em>et<\/em> al.,\u201cLow-Temperature Plasma-enhanced Atomic Layer Deposition of Crystalline III-Nitride Thin Films\u201d <u>International Semiconductor Science and Technology Conference (ISSTC-2014)<\/u>, Istanbul, Turkey, January 13-15 (2014).<\/li>\n<li>Ozgit-Akgun, N. Biyikli, <em>et<\/em> al.,\u201cPlasma-Enhanced Atomic Layer Deposition of III-Nitride Thin Films\u201d, <u>224<sup>th<\/sup>ECS Meeting<\/u>, San Francisco, CA, October 27 \u2013 November 1 (2013).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Professor Office: ITE 459 Phone: (860) 486-2666 Email:\u00a0necmi.biyikli@uconn.edu &nbsp; &nbsp; Education: Ph.D, Electrical and Electronics Engineering, Bilkent University, 2004 M.S., Electrical and Electronics Engineering, Bilkent University, 1996 B.S., Electrical and Electronics Engineering, Bilkent University, 1992 Employment History 2017 \u2013 Assistant Professor, Electrical and Computer Engineering, University of Connecticut 2016 \u2013 2017 Research Fellow, Electrical [&hellip;]<\/p>\n","protected":false},"author":65,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/pages\/4","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/users\/65"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/comments?post=4"}],"version-history":[{"count":19,"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/pages\/4\/revisions"}],"predecessor-version":[{"id":101,"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/pages\/4\/revisions\/101"}],"wp:attachment":[{"href":"https:\/\/www.ee.uconn.edu\/necmi-biyikli\/wp-json\/wp\/v2\/media?parent=4"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}