Fabrication of black-gold coatings by glancing angle deposition with sputtering.
The fabrication of black-gold coatings using sputtering is reported here. Glancing angle deposition with a rotating substrate is needed to obtain vertical nanostructures. Enhanced light absorption is obtained in the samples prepared in the ballistic regime with high tilt angles. Under these conditions the diameter distribution of the nanostructures is centered at about 60 nm and the standard deviation is large enough to obtain black-metal behavior in the visible range.
IMM-Instituto de Microelectronica de Madrid (CNM-CSIC), Isaac Newton 8, Tres Cantos 28760, Madrid, Spain.
Alan
A
Vitrey
Instituto de Ciencia de Materiales de Sevilla (CSIC-US), Americo Vespucio 49, Seville 41092, Spain.
Rafael
R
Alvarez
Instituto de Ciencia de Materiales de Sevilla (CSIC-US), Americo Vespucio 49, Seville 41092, Spain.
Alberto
A
Palmero
IMM-Instituto de Microelectronica de Madrid (CNM-CSIC), Isaac Newton 8, Tres Cantos 28760, Madrid, Spain.
María Ujué
MU
González
IMM-Instituto de Microelectronica de Madrid (CNM-CSIC), Isaac Newton 8, Tres Cantos 28760, Madrid, Spain.
José Miguel
JM
García-Martín
black coatings; black metals; glancing angle deposition; light absorption; sputtering