| 초록 |
The PININEDTMBI, PININEBBTTMBI, and PININIET-co-MBIT were used as the electron donor for the PSCs (ITO / PEDOT:PSS / polymer:PC71BM(1:4) /TiOx / Al). The unique structure of PININE, incorporating the vinylene unit with bicyclic [2.2.0] system, can overcome the basic degradation problem of the common type of vinylene units in PPV series. The solar cells made from conjugated PININEs with benzimidazole and thiophene units, which are new conjugated polymers for the application in polymer solar cells (PSCs), exhibit high PCEs even in basic PSC device structure. The best solar cell performance obtained has a layered structure of ITO / PEDOT:PSS / PININEDTMBI:PC71BM(1:4) / Al. Under white light illumination (AM 1.5 G, 100 mW/cm2), the obtained Jsc is 2.38 mA/cm2, Voc is 0.82 V, FF is 38%, and PCE is 0.76%. All of the results were calibrated by the spectral mismatch of our measuring system. Study to improve the solar cell architecture and PCE is underway. |
