%0 Journal Article %3 JVB001153.pdf %4 dpi.inpe.br/plutao/2010/11.11.17.26.49 %8 Nov. %A Ramos, Sandra Cristina, %A Vasconcelos, G., %A Antunes, E. F., %A Lobo, Anderson de Oliveira, %A Trava-Airoldi, V. J., %A Corat, E. J., %B Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics %D 2010 %F lattes: 7894923534738761 1 RamosVaAnLoTrCo:2010:CO2La %@secondarykey INPE--PRE/ %K Hydrophobicity - Angle measurement - Chemical vapor deposition - Contact angle - Multiwalled carbon nanotubes (MWCN) - Plasma deposition - Seepage. %N 6 %P 1153-1158 %T CO2 laser treatment for stabilization of the superhydrophobicity of carbon nanotube surfaces %V 28 %X In this work, the authors demonstrate the formation of stable superhydrophobic vertically aligned multiwalled carbon nanotube (VACNT) surfaces through CO2 laser irradiance, in which the contact angle value reached 161°. VACNT arrays were synthesized by microwave plasma chemical vapor deposition using N2/H2/CH4 [10/90/14 SCCM (SCCM denotes cubic centimeter per minute at STP)]. CO2 laser technique was applied on VACNT surfaces with irradiance at different laser powers to promote the great stability of superhydrophobic surfaces. Contact angle measurement reveals that irradiated VACNT surface is superhydrophobic at all irradiances tested. Unlike as-grown VACNT, the samples treated with CO2 laser show no sign of water seepage even after a prolonged period of time ( ∼ 24 h). This characteristic is very interesting and has various possible functional applications in micro- and nanomaterials and devices. %@area FISMAT %@electronicmailaddress sandra@las.inpe.br %@e-mailaddress sandra@las.inpe.br %@documentstage not transferred %@group LAS-CTE-INPE-MCT-BR %@group %@group LAS-CTE-INPE-MCT-BR %@group LAS-CTE-INPE-MCT-BR %@group LAS-CTE-INPE-MCT-BR %@group LAS-CTE-INPE-MCT-BR %@usergroup administrator %@usergroup banon %@usergroup lattes %@usergroup marciana %@nexthigherunit 8JMKD3MGPCW/3ESR3H2 %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation nstituto de Estudos Avançados (IEAV), Centro Técnico Aeroespacial, Rodovia dos Tamoios, Km 5.5, São José dos Campos, São Paulo, SP %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@versiontype publisher %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@doi 10.1116/1.3502024 %2 dpi.inpe.br/plutao/2010/11.11.17.26.50