30 citations · 34 across the 3 of their papers we have counts for
3 papers
Optical properties of TiS as a novel thin film for single-junction and tandem solar cells
Cesar E. P. Villegas, Enesio Marinho, A. C. Dias +2
Sub-micrometer thin films are promising platforms for emerging flexible photovoltaic devices. Although the current market already produces efficient solar cells, the average wafer…
Screened hydrogen model of excitons in semiconducting nanoribbons
Cesar E. P. Villegas, Alexandre R. Rocha
The optical response of quasi-one-dimensional systems is often dominated by tightly bound excitons, that significantly influence their basic electronic properties. Despite their im…
Optical spectrum of bottom-up graphene nanoribbons: towards efficient atom-thick excitonic solar cells
Cesar E. P. Villegas, Pedro B. Mendonça, Alexandre Rocha
Recently, atomically well-defined cove-shaped graphene nanoribbons have been obtained using bottom-up synthesis. These nanoribbons have an optical gap in the visible range of the s…