《12Light harvesting in OSCs》.pdf

Light harvesting in organic solar cells Tam Hoi Lam, Qingyi Yang, Wu Zhenghui, Wu Bo and Furong Zhu Department of Physics and Institute of Advanced Materials Hong Kong Baptist University 武汉光电国家实验室, July 26, 2013 Outline Approaches of light harvesting in OSCs An insight of absorption enhancement in grating OSCs  scattering, surface plasmon and waveguide Optical enhancement in semitransparent OSCs Applications of semitransparent OSCs Summary 2 Photovoltaic technologies c-Si, poly c-Si Bulk III-V semiconductor (GaAs, InP ） Thin film c-Si, a-Si, hybrid Si II-VI semiconductor film (CdTe) Thin Film CuInSe2 , Cu(InGa)Se2 Solar cells Solid dye-sensitized solar cells Organic Organic/inorganic hybrid Organic (polymer small molecule) Nano-structured Nano-particle, nano-wire quantum dot- based solar cells 3 Si thin film solar cells 4 Other PV technologies Benefit or intended benefit (all Efficiency at Challenges Type are light weight compared to which it is silicon) viable CIGS High efficiency at low cost, long life, 10-15% i.e. Price of indium transparent , no disposal problems now Fairly high efficiency (below CIGS,