Author/Authors :
Kim، نويسنده , , Taehee and Kim، نويسنده , , Youn-Su and Choi، نويسنده , , Jin Young and Jeon، نويسنده , , Jun Hong and Park، نويسنده , , Won Woong and Moon، نويسنده , , Sun Woo and Kim، نويسنده , , Sung-Min and Han، نويسنده , , Seunghee and Kim، نويسنده , , BongSoo and Lee، نويسنده , , Doh-Kwon and Kim، نويسنده , , Honggon and Kim، نويسنده , , Jin Young and Ko، نويسنده , , Min-jae and Kim، نويسنده , , Kyungkon، نويسنده ,
Abstract :
We report a promising approach to fabricate organic–inorganic hybrid tandem photovoltaic devices with a reversed configuration. High bandgap hydrogenated amorphous silicon (a-Si:H) was deposited with plasma-enhanced chemical vapor deposition onto a solution-processed low bandgap organic photovoltaic (OPV) subcell. Two important factors for efficient tandem solar cells, interfacial series resistance (RS,int) and balanced photocurrents, were investigated. The intimate interfacial contact eliminated the RS,int, and sufficient transmittance of the OPV front subcell led to the well-balanced photocurrents. As a result, this reversed hybrid tandem device showed an enhanced efficiency of 3.3% and an open-circuit voltage of 1.51 V.
Keywords :
Organic solar cells , Interfacial series resistance , Balanced photocurrents , Hybrid tandem solar cells , amorphous silicon
