Black diamond, namely a surface textured diamond film able to absorb efficiently the sunlight, is developed by the use of ultrashort pulse laser treatments. With the aim of fabricating a 2D periodic surface structure, a double-step texturing process is implemented and compared to the single-step one, able to induce the formation of 1D periodic structures. Although the obtained sub-microstructure does not show a regular 2D periodicity, a solar absorptance of about 98% is achieved as well as a quantum efficiency enhanced of one order of magnitude with respect to the 1D periodic surface texturing.
Bellucci, A., Calvani, P., Girolami, M., Orlando, S., Polini, R., Trucchi, D. (2016). Optimization of black diamond films for solar energy conversion. APPLIED SURFACE SCIENCE, 380, 8-11 [10.1016/j.apsusc.2016.02.107].
Optimization of black diamond films for solar energy conversion
POLINI, RICCARDO;
2016-02-22
Abstract
Black diamond, namely a surface textured diamond film able to absorb efficiently the sunlight, is developed by the use of ultrashort pulse laser treatments. With the aim of fabricating a 2D periodic surface structure, a double-step texturing process is implemented and compared to the single-step one, able to induce the formation of 1D periodic structures. Although the obtained sub-microstructure does not show a regular 2D periodicity, a solar absorptance of about 98% is achieved as well as a quantum efficiency enhanced of one order of magnitude with respect to the 1D periodic surface texturing.File | Dimensione | Formato | |
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