Indria Herman, S.T., M.T., Ph.D. Institut Teknologi Bandung Email indria.herman [at] ftmd.itb.ac.id Expertise Mechanical design Education Research Interest Mechanical Design Publication Jurnal Herman I.,Yeo J.,Hong S.,Lee D.,Nam K.H.,Choi J.-H.,Hong W.-H.,Lee D.,Grigoropoulos C.P.,Ko S.H., "Hierarchical weeping willow nano-tree growth and effect of branching on dye-sensitized solar cell efficiency", Nanotechnology, Vol. 23, 2012 Indria Herman, S.T., M.T., Ph.D.