کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
79620 | 49362 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Efficient polymer nanocrystal hybrid solar cells by improved nanocrystal composition Efficient polymer nanocrystal hybrid solar cells by improved nanocrystal composition](/preview/png/79620.png)
We demonstrate the importance of the nanocrystal surface treatment and the inorganic composition for hybrid solar cells. Mixtures of CdSe nanorods and CdSe quantum dots integrated in hybrid solar cells together with the conjugated polymer poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']-dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT) perform better than nanorod and quantum dot only based devices. In addition larger sized quantum dots show a similar improvement after integration in respective solar cells. Power conversion efficiency values exceeding 3% are observed. A first result on the shelf lifetime of such a device is highlighted.
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► Importance of the CdSe nanocrystal composition is demonstrated.
► Postsynthetic nanocrystal treatment significantly enhances the device performance.
► Mixing of quantum dots and nanorods leads to improved device efficiencies.
► Larger-sized quantum dots result in device efficiencies up to 3.1%.
Journal: Solar Energy Materials and Solar Cells - Volume 95, Issue 12, December 2011, Pages 3227–3232