VOC enhancement in polymer solar cells with isobenzofulvene-C60 adducts
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- 作者：Ggoch Ddeul Hana ; 1 ; Andrea Mauranob ; 1 ; Jonathan G. Weisa ; Vladimir Bulovićb ; bulovic@mit.edu" class="auth_mail" title="E-mail the corresponding author ; Timothy M. Swagera ; tswager@mit.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Organic photovoltaics ; Bulk heterojunction active layer ; Isobenzofulvene ; Functionalized fullerenes ; High Voc
- 刊名：Organic Electronics
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：31
- 期：Complete
- 页码：48-55
- 全文大小：1346 K
文摘
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Isobenzofulvene–C60 adducts were synthesized and used in bulk heterojunction organic solar cells.
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The LUMO energy levels of these adducts are 20–180 meV higher than that of PCBM.
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Raised LUMO levels of fullerenes and their desirably slow recombination dynamics led to higher open-circuit voltages (VOC).
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The short-circuit current densities (JSC) were improved in the devices containing the epoxide analogs of IBF–C60.
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The epoxide derivative of the monoadduct (IBF–Ep) exhibited ∼20% enhancement of PCE compared to reference P3HT:PCBM cells.