Journal ArticleDOI
Design of Diketopyrrolopyrrole (DPP)-Based Small Molecules for Organic-Solar-Cell Applications.
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TLDR
The development of DPP-based photovoltaic small molecule performance is discussed in relation to structural modifications, such as the variations of donor-acceptor building blocks, alkyl substitutions, and the type of conjugated bridges, as well as end-capped groups.Abstract:
After the first report in 2008, diketopyrrolopyrrole (DPP)-based small-molecule photovoltaic materials have been intensively explored. The power conversion efficiencies (PCEs) for the DPP-based small-molecule donors have been improved up to 8%. Furthermore, through judicious structure modification, DPP-based small molecules can also be converted into electron-acceptor materials, and, recently, some exciting progress has been achieved. The development of DPP-based photovoltaic small molecules is summarized here, and the photovoltaic performance is discussed in relation to structural modifications, such as the variations of donor-acceptor building blocks, alkyl substitutions, and the type of conjugated bridges, as well as end-capped groups. It is expected that the discussion will provide a guideline in the exploration of novel and promising DPP-containing photovoltaic small molecules.read more
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Supramolecular Luminescent Sensors
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Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells
Bin Kan,Huanran Feng,Xiangjian Wan,Feng Liu,Xin Ke,Yanbo Wang,Yunchuang Wang,Hongtao Zhang,Chenxi Li,Jianhui Hou,Yongsheng Chen +10 more
TL;DR: The results demonstrate that the BDT unit could also be applied for designing NF-acceptors, and the fused-ring benzodi(cyclopentadithiophene) unit is a prospective block for designing new NF- acceptors with excellent performance.
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Benzotriazole-Based Acceptor and Donors, Coupled with Chlorination, Achieve a High VOC of 1.24 V and an Efficiency of 10.5% in Fullerene-Free Organic Solar Cells
Ailing Tang,Wei Song,Bo Xiao,Jing Guo,Jie Min,Ziyi Ge,Jianqi Zhang,Zhixiang Wei,Erjun Zhou,Erjun Zhou +9 more
TL;DR: In this paper, a simple "Same-A-Strategies" (SAS) strategy for constructing p-type and n-type photovoltaic materials with the same electron-accepting (A) unit of benzotriazole was adopted to initially control the energ...
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Fine-Tuning the Energy Levels of a Nonfullerene Small-Molecule Acceptor to Achieve a High Short-Circuit Current and a Power Conversion Efficiency over 12% in Organic Solar Cells.
Bin Kan,Jiangbin Zhang,Jiangbin Zhang,Feng Liu,Xiangjian Wan,Chenxi Li,Xin Ke,Yunchuang Wang,Huanran Feng,Yamin Zhang,Guankui Long,Richard H. Friend,Artem A. Bakulin,Yongsheng Chen +13 more
TL;DR: An unusually slow but ultimately efficient charge generation mediated by interfacial charge-pair states is observed, followed by effective charge extraction of the PBDB-T:NCBDT devices, among the best for solution-processed organic solar cells.
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Organic Dye Based Nanoparticles for Cancer Phototheranostics.
TL;DR: The recent progress of organic dye-based NPs for cancer phototheranostic applications is summarized, which extends the anticancer arsenal and holds promise for clinical uses in the near future.
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2.5% efficient organic plastic solar cells
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