Author/Authors :
Duck، نويسنده , , Benjamin C. and Vaughan، نويسنده , , Benjamin and Wen، نويسنده , , Li and Heth، نويسنده , , Christopher L. and Rasmussen، نويسنده , , Seth C. and Zhou، نويسنده , , Xiaojing and Belcher، نويسنده , , Warwick J. and Dastoor، نويسنده , , Paul C.، نويسنده ,
Abstract :
Bulk heterojunction binary blends of poly(2,3-dihexylthieno(3,4-b)pyrazine) (pC6TP) and [6,6]-phenyl-C61-butyric acid methylester (PCBM) have been prepared and studied as near infra-red (NIR) organic photonic devices. Photocurrent contributions from both components are observed and show a photoresponse down to approximately 1 eV. The performance of the devices as a function of annealing time is investigated. A model for the effect of structure on the NIR response of these devices is developed and highlights the ambipolar nature of pC6TP as a charge transport material.
Keywords :
Near infra-red , Organic photonic devices , structure–function , Low-band gap
