| Summary: | 碩士 === 國立臺灣科技大學 === 化學工程系 === 96 === In this studies, we used hydrothermal method to grow the nanorods on the seed layer , then make it to be organic solar cell devices. We use XRD, SEM, & PL analyze the morphology and crystallinity, then measured the I-V curve and efficiency of solar cells.
In Bulk-heterojunction devices, use nanorods as acceptor was better than bilayer.
We found that (1) seed layer thickness, (2) hydrothermal concertration could change the interspace of nanorods, (3)hydrothermal temperature would influence the length, the in seed layer spray time 10 min, hydrothermal growth time 2hr, hydrothermal concertration 0.04M hydrothermal temperature 90℃, the nanorods exhibited the best efficiency of solar cells, it’s interspacing was 15nm, length 210nm and the nanorods revealed the strong (002) preferred orientation, and the efficiency of bilayer device was much smaller the nanorods type device.
The best efficiency in our ITO / ZnO / P3HT / PEDOT:PSS / Au structure solar cells was about 0.60%. In future the interface of polymer and nanorods need to improve, we hope that can enchance the efficiency of solar cells.
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