3 papers
physics.soc-ph2018
Brazil Nut Effect in Roads that Allow Cars and Motorbikes to Pass Through
Fisca Dian Utami, Desyana Olenka Margaretta, Donny Dwiputra +3
In some countries, cars and motorbikes are allowed to pass through the same road. We observe a phenomenon similar to a Brazil nut effect (BNE) that frequently occurs on such roads,…
physics.app-ph2018
Very high efficiency of low cost graphite-based solar cell by improving the fill factor using optimal ion concentration in polymer electrolyte
Dui Yanto Rahman, Fisca Dian Utami, Asep Ridwan Setiawan +2
We report the development of graphite-based solar cells using a simple method and low cost materials. Suspension of graphite powder in mineral water was simply dropped onto the sur…
cond-mat.mtrl-sci2015
New Design of Potentially Low-cost Solar Cells Using TiO2/Graphite Composite as Photon Absorber
Dui Yanto Rahman, Mamat Rokhmat, Elfi Yuliza +2
A solar cell design using the combination of titanium dioxide and graphite as active photon absorbing materials were proposed. The titanium dioxide absorbs photons of nearly ultrav…