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oe1(光电查) - 科学论文

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?? 中文（中国） ▾

  • Effects of HTL and ETL Thicknesses on the Performance of PQT-12/PCDTBT:PC61BM/ZnO QDs Solar Cells

    摘要： In this letter, floating film transfer method (FTM) based poly (3, 3'''- dialkylquaterthiophene) (PQT-12) hole transfer layer (HTL) has been explored for the performance improvement of poly[N-9’-heptadecanyl-2,7-carbazole-alt-5,5-(4’,7’-di-2-thienyl-2’, 1’, 3’-benzothiadiazole)]:[6,6]-phenyl-C61butyric acid methyl ester (PCDTBT:PC61BM) based bulk heterojunction (BHJ) solar cells. The BHJ is formed by sandwiching PCDTBT:PC61BM between FTM coated PQT-12 HTL and spin-coated ZnO quantum dots (QDs) electron transport layer (ETL). The better phase matching of FTM deposited PQT-12 HTL to the PCDTBT:PC61BM based blend polymeric active layer along with the visible absorption spectrum of the PQT-12 enhances the energy harvesting capability of the solar cell structure. The solar cell performance parameters such as the open circuit voltage (VOC), short circuit current density (JSC), fill factor (FF) and power conversion efficiency (PCE) are investigated for ~20 to 60 nm thin PQT-12 and ~20 to 35 nm thin ZnO films. The obtained VOC, JSC, FF, and PCE are 0.672 V, 10.42 mA/cm2, 38%, and 2.66%, respectively for ~20 nm PQT-12 and ~35 nm ZnO QDs.

    关键词： PCDTBT,PQT-12,Floating film transfer method (FTM),Solar Cells,Bulk heterojunction

    更新于2025-09-23 15:21:01

  • Effect of PQT-12 interface layer on the performance of PCDTBT: PCBM bulk heterojunction solar cells

    摘要： The effect of PQT-12 interface layer on the performance of PCDTBT:PCBM based bulk heterojunction (BHJ) organic solar cells (OSCs) is reported in this paper. The PQT-12 interface layer is obtained by cost and material effective technique, floating film transfer method (FTM). It is shown that the use of FTM-based PQT-12 HTL significant improves the power conversion efficiency (PCE) and external quantum efficiency (EQE) of the OSCs over only PEDOT:PSS HTL based OSCs. The OSC has the maximum values of JSC (=5.62 mA cm?2), VOC (=562 mV) and FF (=0.33) in the PQT-12 incorporated structure due to efficient carrier transfer at the interface. The PCE of nearly twice of the only PEDOT:PSS HTL OSC is obtained in case of the PQT-12/PEDOT:PSS structure.

    关键词： organic solar cell (OSC),PCDTBT,bulk heterojunction,PQT-12,floating film transfer method (FTM)

    更新于2025-09-23 15:19:57