@Article{SilvaBern:2021:MuPoSi,
               author = "Silva, Ana Carolina Fernandes da and Berni, Luiz Angelo",
          affiliation = "{Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Multilayer porous silicon as visible radiation absorber",
              journal = "Optical Materials",
                 year = "2021",
               volume = "112",
                pages = "e110795",
                month = "Feb.",
             keywords = "porous silicon, black silicon, reflectance, electrochemical 
                         etching.",
             abstract = "Since its accidental discovery in the mid-1950s, porous silicon 
                         has attracted great interest due to its wide range of 
                         applications. One of them that has been the subject of recent 
                         studies is the use of this material as black silicon, in which 
                         with the continuous or gradual variation of the refractive index 
                         it is possible to significantly reduce the reflectance of silicon 
                         surface. In this work, several samples of this material were 
                         produced in order to analyze the feasibility of using porous 
                         silicon as a radiation absorber in the visible region. The best 
                         results obtained were for samples with six layers with refractive 
                         index ranging from 1.4 to 2.4, total thickness of 10,800 nm and 
                         reflectance of 5%. The influence of porous layer thickness on the 
                         reflectance profile was also observed.",
                  doi = "10.1016/j.optmat.2020.110795",
                  url = "http://dx.doi.org/10.1016/j.optmat.2020.110795",
                 issn = "0925-3467",
             language = "en",
           targetfile = "silva_multilayer.pdf",
        urlaccessdate = "20 maio 2024"
}