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[資源]
【Nature Chemistry】基于卟啉敏的染料敏化太陽能電池將光電轉(zhuǎn)換效率提高到了13%!
染料敏化太陽能電池最高效率停留在12.3%很久后,終于有所突破了?粗}鈦礦太陽能電池效率不斷的增長,著實為DSSC擔(dān)憂。
最新Nature Chemistry基于卟啉敏分子的太陽能敏化電池將光電轉(zhuǎn)換效率提高到了13%!。!
【Nature Chemistry】Dye-sensitized solar cells with 13% efficiency achieved through the molecular engineering of porphyrin sensitizers
Dye-sensitized solar cells have gained widespread attention in recent years because of their low production costs, ease of
fabrication and tunable optical properties, such as colour and transparency. Here, we report a molecularly engineered
porphyrin dye, coded SM315, which features the prototypical structure of a donor–p-bridge–acceptor and both maximizes
electrolyte compatibility and improves light-harvesting properties. Linear-response, time-dependent density functional
theory was used to investigate the perturbations in the electronic structure that lead to improved light harvesting. Using
SM315 with the cobalt(II/III) redox shuttle resulted in dye-sensitized solar cells that exhibit a high open-circuit voltage VOC
of 0.91 V, short-circuit current density JSC of 18.1 mA cm–2, fill factor of 0.78 and a power conversion efficiency of 13%.
[ Last edited by wzq91 on 2014-2-4 at 12:26 ] |
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