New polymer acceptor for solar cells application
By Chatterjee, Shyambo; Banerjee, Susanta & Banerji, Pallab
Published in Synthetic Metals
NULL
2012
Abstract
New photosensitive fluorine containing PPV derivative (DBTFM-PPV) has been synthesized as an acceptor material via Gilch polymerization reaction. The polymer was soluble in many of the common organic solvents. Optical, electrochemical and photovoltaic properties including hole and electron mobility of this polymer was investigated. Bilayer (ITO/PEDOT:PSS/MEH-PPV/DBTFM-PPV/Al) and bulk hetero junction (ITO/PEDOT:PSS/DBTFM-PPV:MEH-PPV/Al) solar cells were fabricated where DBTFM-PPV act as an acceptor material. Bulk hetero junction (BHJ) solar cell showed higher efficiency than bilayer device. The power conversion efficiency (PCE) of the BHJ solar cells based on DBTFM-PPV:MEH-PPV (2:1) was 0.49% with an open-circuit voltage (Voc) of 1.16 V, fill factor of 0.49%, and a short-circuit current (Jsc) of 1.17 mA/cm2.
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