Abstract: A light-trapping layer is integrated into a thin-film solar cell. It is integrated as a light-inlet layer, an intermediate layer or a shaded layer with nano-particles embedded in a transparent or non-transparent conductive film. Thus, light stays longer in an absorption layer with photocurrent increased; defects of interface between the absorption layer and the nano-material are decreased; anti-reflective effect to inlet light is enhanced; and a good integrity and a good reliability for long-time light-shining are obtained.

Abstract: The present invention relates to a call forwarding system for forwarding telephone calls to a target telephone not having a direct dial number. The call forwarding system includes an intelligent forwarding unit for storing a forwarding direct dial number and the extension number for accessing the target telephone and for connecting the received forwarded call to the target telephone, a voice response unit including a DTMF decoder for receiving the forwarded telephone call and for decoding the extension number of the target telephone. A call connecting unit directly connects the in-coming telephone call to the target telephone.