@article {Centeno2020,
	title = {{Self-Cleaned Photonic-Enhanced Solar Cells with Nanostructured Parylene-C}},
	volume = {2000264},
	year = {2020},
	note = {n/a},
	pages = {1{\textendash}9},
	abstract = {<p>Abstract Photonic front-coatings with self-cleaning properties are presented as means to enhance the efficiency and outdoor performance of thin-film solar cells, via optical enhancement while simultaneously minimizing soiling-related losses. This is achieved by structuring parylene-C transparent encapsulants using a low-cost and highly-scalable colloidal-lithography methodology. As a result, superhydrophobic surfaces with broadband light-trapping properties are developed. The optimized parylene coatings show remarkably high water contact angles of up to 165.6{\textdegree} and extremely low adhesion, allowing effective surface self-cleaning. The controlled nano/micro-structuring of the surface features also generates strong anti-reflection and light scattering effects, corroborated by numeric electromagnetic modeling, which lead to pronounced photocurrent enhancement along the UV?vis?IR range. The impact of these photonic-structured encapsulants is demonstrated on nanocrystalline silicon solar cells, that show short-circuit current density gains of up to 23.6\%, relative to planar reference cells. Furthermore, the improvement of the devices{\textquoteright} angular response enables an enhancement of up to 35.2\% in the average daily power generation.</p>
},
	doi = {10.1002/admi.202000264},
	author = {Centeno, Pedro and Alexandre, Miguel F. and Chapa, Manuel and Pinto, Joana V. and Deuermeier, Jonas and Mateus, Tiago and Fortunato, Elvira and Martins, Rodrigo and {\'A}guas, Hugo and Mendes, Manuel J}
}
