Photo-induced Charge Transfer in Conjugated Polymer-Fullerene Composites:Bulk Heterojuction Polymer Solar Cells
소속 :
연사 : Kwang Hee Lee(GIST)
일시 : 2012-11-15 17:00 ~
장소 : 25-1동 국제회의실
일 시 : 2012년 11월 15일, 5:00 PM
장 소 : 25-1동 국제회의실
-Abstract-
Ultrafast photo-induced charge transfer, occurred in composites of a donating conjugated polymer and an accepting fullerene, offers promise for the realization of a low-cost, printable, portable and flexible energy source, so-called bulk heterojuction (BHJ) solar cells. Through rigorous efforts in the improvement of the associate materials and the device science over the past decade, encouraging progress has been made with power conversion efficiencies (he) over ~10% in polymer BHJ solar cells and expected to be commercialized in the near future. In this talk, I present here an innovative approach that significantly enhance the efficiency and at the same time extends the device lifetime by introducing novel solution-based metal oxide systems as functional interlayers. In particular, I will focus on the underlying fundamental physics and chemistry of those functional layers which are inserted between the photoactive layer and electrodes and induce significant functions in the BHJ cells. Our architecture ensures the promise of high performance printable polymer solar cells with a significant extent of the range of possible applications.
장 소 : 25-1동 국제회의실
-Abstract-
Ultrafast photo-induced charge transfer, occurred in composites of a donating conjugated polymer and an accepting fullerene, offers promise for the realization of a low-cost, printable, portable and flexible energy source, so-called bulk heterojuction (BHJ) solar cells. Through rigorous efforts in the improvement of the associate materials and the device science over the past decade, encouraging progress has been made with power conversion efficiencies (he) over ~10% in polymer BHJ solar cells and expected to be commercialized in the near future. In this talk, I present here an innovative approach that significantly enhance the efficiency and at the same time extends the device lifetime by introducing novel solution-based metal oxide systems as functional interlayers. In particular, I will focus on the underlying fundamental physics and chemistry of those functional layers which are inserted between the photoactive layer and electrodes and induce significant functions in the BHJ cells. Our architecture ensures the promise of high performance printable polymer solar cells with a significant extent of the range of possible applications.
