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NASA Technical Reports Server (NTRS) 20020080637: Carbon Based Nanotechnology: Review PDF

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Preview NASA Technical Reports Server (NTRS) 20020080637: Carbon Based Nanotechnology: Review

/ = _I. _ I_-- .Aw_PRACT ORSUPI_)RT1NG INF_RMATs_kl : Presentation/Publication Information: An invited talk to be given by Deepak Srivastava of the Computational Nanotechnology task at the monthly Silicon Valley Computer Club gathering on 17th March, 1999 at 8, Atmandra Lane, Los Altos, CA. A copy of the presentation is attached. Acknowledgments: This work was supported under NASA contract NAS2-14303. Abstract: An invited talk to review the status of the progress in Nanotechnology, based on publicly available, already presented and/or published material. The copy of the slides are enclosed. No abstract was required or submitted for this presentation. NASA FORM 1676 (AUG 97) E PAGE 3 f I ('arl_)n ba._ed Nanotet'lmo|._.,, Re,¢ie-,v I RDervexielwer's of ?C¢alorlbto'cnular NanNotaenchotneoclhontLolvn:_,y. in context o[" | D_pak Srlvastava IT Modeling and Simulation Group - MRJ Tech. NASA Anles Research Center, Moffetl Fie d. CA 9.-k'q35- [0CO 0 Concept: Feynnmn'_ lx_stuklte deepak_ has. nasa.gov; Ph: (650) 6c 4.- 3.1.8o 0 Vision: Molecu 'lar A.ssem hlrrs 0 Progress in Microtech,ol.gy .... / Nanotube- Nanomechanics J '¢"Nan'o-nte_hanic.Vmaterial'_ -_ _'arb..o..,..................h.._....s.t._ ele_ir(mi_sj.'°'_'N /i )B _en(:l iII,T A pplicati,ms -retli_,t rihutiol_ ,_f_lraltl _................................... ~_harp h.cklin_ leadin_ to h,md rupture r tN.Im _-IllI1_1or.qpll _' , ./ fi l f .....I j I Energeties ofMechanical D_formalion :)2_" m --, ! r_ 0 Predktionsofenhanced chemical reactivity in region_ of local ¢onformational strai_: Kinky Chemistry Sii_[e Wall _--" Compression , .._:,__ , . ... - .f* :;,;0 iP--='-'" _ 1 16% strain z:) _lj 11)_ t5 _a ZtJ.U O 20 I .... Kink on a bent tubule ,Io 4 0 s A;omNl_,_a_ (eVeatom_ -. . .. ...q_., 0 "'" _i::" 7 _ , ' , I _ Id ,)o _j lOO )_ ,) 2 ) g II_ _ -_I-l"lr\: / ".,:_.... " i Told[on Eidge on a twisted : _ _ tubule _s. Nt_ I _ _ --_ -_ Sin_e Walt C_'. /__2.__--_-_L , i , I , _ 72n de_ twist _lio,Iins, [ner,) _ Time _psb ] ) / J [ N_J_o Mechaam-Chemistry nlj 0 Mechtmism of Straiaed imlueed chemisor ption •,.Y "b: 8e_l 2.5 nm _, Ill DOS [ Ben( aflc[ IIadsoq_liou Tor_;io.,.ll.,, i,ii_-i_'_Nrlqiulhb'6ii._ iai_n'tl 5idl_ -15 _) 15 Ft},r,.w(,'_. t [ LN.a.t.m....:_..k.c.h.a.n.o......'.-C.h.e2.m.i.st.ry......-...[l.I..].J ,[ Nano _lechano-Electronies I [ 0 Mecgllllt'aJ det'ormauons alter !he E]eCli'OmC ("_ar_terly.lie_ F ._.. ...... _- _,j_ -,- - , 2 -4 -2 _ 2 ": 92 Nann mechanc--eiecm,mcs effects ate 'srr_r_d_," JependeRr / f / ! Research Focus II _ i i: Carbon ha_ed Electronics _ii iI Experimenla[ Status Individual Si_gle _.',all Nanolube_ as Quantum 'vVire S.J."['aas et. al, Nature I),pril, 97) ::::::::::::::::::::::::::::::::::: 0 ",/an.tube Nam_levice - showing loeali,!ed re,.'lil'yi._ heha_ior ill the [/'f charadeti_tk._ P (;. Cdlins el. al., Science tfktoher, 97; O IP; Characlefislic-'_ and I'_lectroldc Structure d)051 ,ff seructueallv ilallOtU bt'_L I _,i(; Wil_lo_.r el. a|.. Nature (Jalluar;. 'J_i T. _'. Odqln el. all.. Nalure _Januar}, _ O ._,iln, lellalloluhe-mole_:ule Iran..,i-;tor al r_),.n tern p. '.i J. "l'an'_ et. al. i'_,atarel _Nlay, 9_1 O _,,au._lrudurin_ icuttin_l Ofllalloluhe'_ _ilh P;TM I., C _,enelna el. al.. _.[)pl. PIIV_L I.e_t. iN,)_, ')71 if /f I Carbon Nanotube Electronics Band Structure i I (basics) _i CxBvNz. Nanotubes: Nano-mechanicsNan°-Electr°nics i -- molecular wires Topological defect mediated ";"_" " K_ ":p_ Heteru-junction.s ~ switchinfl tran,sisling ., .:-...... tunneling devices ... ..--... .. .. Nano Mechano-Chemist ry H©xagonal [.a,ice ofa Gmphene First Brilk_um zone foran arm-. Site-specific chemical functionalization Sheer - (2xunit cell) chair tube. Hetero-ju r_tions • "? :- ." :'. "' "" '.B' ' ':B;""": '"'_: .:""; /""" ! ";. Nan, %.lee han,- Elect rnnit-'s .i" "_. at:..... : ;"_ -" . ! ":,_w" :. "" ... _". ,-_' ,_ ..... , .._.....! .... •._, '. " =_:....... _' 2 C nanotube'-t doped with B and N Ileleroatomic CxBvNz nanotubes lIeterojunctions S,per 'latt ices -.' -- Ch.= n,aq 4- m_2' (chirai ".-e,.-a_r ___j. _ CarL_,n Nanntol,e Electronics Band Strueture_' -._j 2- point Nanotube Heteroj,anc (ions Molecular Electronic Switches "_°"_:'°''e_*_ _:::::_"" _:"::_i_ _'" "":'<a i:i:':!_?,>:i:_" '7"L :_..'.-_:" !$_:!:i:!:- _!_ ::"._:i _:!:"" "_ i:_$." _i_ /X /',_ [ :!* :.-'Li:_iii__ _h.. '::::::::::::: ii x"_L_i_ii_i _ _ ';""_ __ ilia... .i:: t -\_i _" "_'//j ; (10.0) - l_) (9,01- 15._) 18.01- 17.1} tl"_O)- ([LO} Bent Junctions Straight Juactions Chico et aL Phys. Rcv. I.etl..9t) Chattier et. a[. Phys. Rcv. B. 96 0Lib tube {IO,OI lube (.c.$) tube I.ambine el. at. Chem. Phys. [_etr., 96 Saiu_ er.al. Phys. Roy. IL96 .kl'tl',tq',air Ibl't's ¢11n - ii:cta[ '4k¢ We _(,died Ihe effect of cappin_ the tuhes a,d rdaxi._ the iu,.:li,ms wlih ._qua.it=in l;Tl_%ll) melh_x]. [TopoiogicalDefects:rleterojunctionslIl_ _ i ,--. :,.,,. ,,;:::::,. Palhw aYStoThree-Dirnctx_onal Mole_uhtr "Netwocl_ "_'_'_ r r //i J MetaI-Semioml(hmlor -Mehql Y" Tmm¢l Jundlrm A rour-termirml rmno_ube hc(erojunction "It turin out ilmt all ofour prOpOsed junctions tilisf-t - Genet-a 2e,_ Euler'_ Rn_¢ al_)ut Ih_:global topology ofCo*lr,_c:teti networks" - V. Cct"_pl. Phys. I_ev. |x-It. t98_ J-terminal "T-tunnel" Junctions or Nanottd}es Thc,,e _re "id_}l" junction_ and we dot'l( know how to make Ih_,_ ! Some work L,_in pro_re_ to ¢oneeiMualize amd I_l "r_,d" junctions. \ i CxByNz Nanotuhes and Junctions II j _........ ii o Bdoping of Carbon Nanolube [ Random IManll IBL'3) Stupcrlultice tB('3) _, _"_ I),1)410 -O.013 -0.0 16 e_,/al,If_ ilh_'e '_'p:wali,,It ,dIh)p,_l and unttOlX_ rc,2¢*,ils i_ thermo_lvnamle=flly _tahlc ! BNK_ .Jun¢lions [lltcrf:iee I_lter,)y =2*BN/C - BN - C Interface Ener=y = 033e_,TCB bond _4laide inter fao:_ _h,_uld be p),edbK" '. [ Nano-nw_himics CommenL_: of Composite Nanotubes (8,1)) Proposed "new'aanotechnology materials and dt_icts. - mulllple nnnelnbe junclions and mAworks ~ B.N doping, inlerfact-J and tips _°'-_"°"E ./T vV"-- Tested feasibility of "new" concepts: 02 .q' 3 _ - Confocmatienal strain driven mechanical - kinky - ehemistry imcertainly anew way todo _ specific oF,:",,,,,, .... :,,,,,- reactions on side-walls. - feasibility of I{ storage in nanotube bam_ matet-tal -0.! 0 4 8. 12 !6 20 Cc_presmiona[ _train (%) Future po_qribi[Ities are bright: Mechanical II% 15% ,'_::._.:.... Q ! Chemical Electronic StrU('tLLr_Ucyoilap_d C _L_OIUI_ Sln_tur4Uy col]aps_'dBN eanolube[ J _/

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