{"id":144,"date":"2018-08-29T21:40:57","date_gmt":"2018-08-30T01:40:57","guid":{"rendered":"http:\/\/sites.nd.edu\/nazli-turan\/?p=144"},"modified":"2021-05-03T12:50:35","modified_gmt":"2021-05-03T16:50:35","slug":"notes-from-iplasmanano2018","status":"publish","type":"post","link":"https:\/\/sites.nd.edu\/nazli-turan\/2018\/08\/29\/notes-from-iplasmanano2018\/","title":{"rendered":"Notes from iPlasmaNano 2018"},"content":{"rendered":"

It was a really dense conference. Mostly, the professors gave talks about the latest updates of their research. The discussions were at high level. I tried to keep my eyes open to follow almost every talk \ud83d\ude42 But, it’s worth it \ud83d\ude42 Here are the topics attracting my attention.<\/p>\n

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RIP TOWNSEND! (credit: https:\/\/www.ieap.uni-kiel.de\/plasma\/ag-kersten\/en\/history-gas-discharge-physics<\/a>)<\/em><\/figcaption><\/figure>\n

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Nano particle synthesis:\u00a0<\/strong>https:\/\/scholar.google.com\/citations?user=ni1mqkEAAAAJ&hl=en<\/a><\/h1>\n

–>in-situ FTIR:plasma-nano particle interaction<\/p>\n

Graphite (anode–>mix with catalyst), BN nanotube synthesis by arc:<\/strong> https:\/\/scholar.google.com\/citations?user=-PkzDBQAAAAJ&hl=en<\/a><\/h1>\n

–>B mix with metal (Ni, Co)<\/p>\n

Computational plasma:\u00a0<\/strong>http:\/\/faculty.ucmerced.edu\/vayyaswamy\/research.html<\/a><\/h1>\n

–>plasmaFOAM, Ti=Tg+((m_i\/3k_b)mu_i^2E^2), non-Maxwellian ion number density 10^19 #\/m^3<\/p>\n

–>sheath oscillation: in low pressure-stochastic heating (can’t apply LFA,local field approx), in high pressure-ohmic heating<\/p>\n

Space charge limited emission:<\/strong>\u00a0https:\/\/aip.scitation.org\/doi\/10.1063\/1.5004654<\/a><\/h1>\n

–>in high pressure-Matt-Gurney, in low pressure-Child-Langmuir, further Schr\u00f6dinger<\/p>\n

–>Rougher surfaces have lower breakdown voltage<\/p>\n

Social impact<\/strong>:\u00a0https:\/\/www.linkedin.com\/in\/sung-jin-park-b2a5b510\/<\/a><\/h1>\n

Plasma-surface interactions:<\/strong>\u00a0https:\/\/www.researchgate.net\/profile\/Carles_Corbella<\/a><\/h1>\n

Hall thruster, BN self heating, catalyst with carbon nanotube<\/strong>: https:\/\/www.researchgate.net\/profile\/Carles_Corbella\u00a0<\/a><\/h1>\n

Tensile stress btw atoms, quantum dots with thermomechanical stress<\/strong>:\u00a0https:\/\/scholar.google.com\/citations?user=wSJ6cxcAAAAJ&hl=en<\/a><\/h1>\n

–>larger atoms are collected in one dot<\/p>\n

10kW, IEDF affects selectivity:<\/strong>\u00a0https:\/\/scholar.google.com\/citations?user=cRanOQUAAAAJ&hl=en<\/a><\/h1>\n

–>by lowering Q-factor under mismatch, more lossy matching –>e energy increases, equilvalent circuit mdelling by M.Kushner<\/p>\n

Plasma-based tuning, lower resonance freq–sheath diminishes\u00a0<\/strong>\u00a0https:\/\/scholar.google.com\/citations?user=Qjw1ACoAAAAJ&hl=en<\/a><\/h1>\n

–>negative permittivity (meta material) — more number of electrons, conductivity increases<\/p>\n

–>DC abnormal glow: i increases, res freq decreases<\/p>\n

–>applied freq<< plasma freq (sqrt (e^2 n_e \/ m Epsilon_0))<\/p>\n

–>alpha discharge –> walls are protected by ion bombardment<\/p>\n

Double negative meta material (Epsilon<0, Mu<0):<\/strong>\u00a0https:\/\/scholar.google.com\/citations?user=LknRjyEAAAAJ&hl=en<\/a><\/h1>\n

–>1 W, low pressure, dielectric resonator<\/p>\n

RF manipulations<\/strong>:\u00a0https:\/\/scholar.google.com\/citations?user=PKxNAt0AAAAJ&hl=en<\/a><\/h1>\n

–>tuning number of electrons (n_e), Epsilon(V)=1-n_e\/(w^2+v_m^2) where v_m^2=collision resonance freq which is a func of pressure<\/p>\n

–>define ‘effective secondary emission coefficient’, i increases, cathode sheath diminishes for gamma mode of RF disch–>it is like DC with switching polarity (AC?)<\/p>\n

–>P_noise \/ delta f = 4kT_e \/ (1+w^2\/v_m^2) , power noise, in metal just\u00a0\u00a0P_noise \/ delta f = 4kT_e but as noise reduces, conductivity decreases.<\/p>\n

–>if purpose is to produce high number of electrons, HV, high pulsing rate –>low Te, high n_e<\/p>\n

–>Add H2O vapor to reduce T_e<\/p>\n

–>pd – 0.0001 Torr cm , field ionization, 20 ps ignition time (e time of flight) n_e – 10^10 cm^-3<\/p>\n

CNT growth on substrates, energy storage applications, super capacitor<\/strong>:\u00a0https:\/\/scholar.google.com\/citations?user=N2yMgt8AAAAJ&hl=en<\/a> https:\/\/engineering.ucsb.edu\/~mjgordon\/research\/index.html<\/a><\/h1>\n

In-situ plasma catalysis<\/strong>:\u00a0https:\/\/www.research.manchester.ac.uk\/portal\/en\/researchers\/chris-hardacre(c10c2a33-9679-4501-b20f-272a2460b25c)\/publications.html<\/a><\/h1>\n

–>NOx with HC, CO2 selectivity increased with Al2O3+Pd<\/p>\n

–>Temp in plasma 100 C (?)<\/p>\n

–>plasma jet in DRIFT, plastic dome,<\/p>\n

–>EXAFS data<\/p>\n

–>SEI: 2.637 kJ\/L<\/p>\n

Carbon arc discharge<\/strong>:\u00a0http:\/\/pdml.tamu.edu\/<\/a><\/h1>\n

–>600 Torr, 2mm, e, He, C+, C*,C2…<\/p>\n

–>55-60 A, low ablation-low deposit if anode diameter is decreased<\/p>\n

–>T_e-1 eV<\/p>\n

Laser produced plasma:<\/strong>\u00a0http:\/\/www.inrs.ca\/mohamed-chaker?f=publications<\/a><\/h1>\n

–>0.8 THz<\/p>\n

–>VO2 for microsatellites<\/p>\n","protected":false},"excerpt":{"rendered":"

It was a really dense conference. Mostly, the professors gave talks about the latest updates of their research. The discussions were at high level. I tried to keep my eyes open to follow almost every talk \ud83d\ude42 But, it’s worth it \ud83d\ude42 Here are the topics attracting my attention.  <\/p>\n","protected":false},"author":3115,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[302453],"tags":[303404,303225,302679],"class_list":["post-144","post","type-post","status-publish","format-standard","hentry","category-science-news","tag-plasma-applications","tag-plasma-modeling","tag-plasma-science"],"_links":{"self":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts\/144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/users\/3115"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/comments?post=144"}],"version-history":[{"count":10,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts\/144\/revisions"}],"predecessor-version":[{"id":381,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts\/144\/revisions\/381"}],"wp:attachment":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/media?parent=144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/categories?post=144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/tags?post=144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}