Partially-disordered photonic-crystal thin films for enhanced and robust   photovoltaics
  We present a general framework for the design of thin-film photovoltaics based on a partially-disordered photonic crystal that has both enhanced absorption for light trapping and reduced sensitivity to the angle and polarization of incident radiation. The absorption characteristics of different lattice structures are investigated as an initial periodic structure is gradually perturbed. We find that an optimal amount of disorder controllably introduced into a multi-lattice photonic crystal causes the characteristic narrow-band, resonant peaks to be broadened resulting in a device with enhanced and robust performance ideal for typical operating conditions of photovoltaic applications. 
Ardavan Oskooi and Pedro A. Favuzzi and Yoshinori Tanaka and Hiroaki   Shigeta and Yoichi Kawakami and Susumu Noda
physics.optics