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Amolecularly engineered hole-transporting material for e cient perovskite solar cells
| Content Provider | Semantic Scholar |
|---|---|
| Author | Saliba, Michael Orlandi, Simonetta Matsui, Taisuke Aghazada, Sadig Cavazzini, Marco Correa-Baena, Juan-Pablo Gao, Peng Scopelliti, Rosario Mosconi, Edoardo Dahmen, Klaus-Hermann Angelis, Filippo De Abate, Antonio Hagfeldt, Anders Pozzi, Gianluca Grätzel, Michael Nazeeruddin, Mohammad Khaja |
| Copyright Year | 2016 |
| Abstract | Solution-processable perovskite solar cells have recently achieved certified power conversion e ciencies of over 20%, challenging the long-standing perception that high e ciencies must come at high costs. One major bottleneck for increasing the e ciency even further is the lack of suitable hole-transporting materials, which extract positive charges from the active light absorber and transmit them to the electrode. In this work, we present a molecularly engineered hole-transport material with a simple dissymmetric fluorene–dithiophene (FDT) core substituted by N,N-di-p-methoxyphenylamine donor groups, which can be easily modified, providing the blueprint for a family of potentially low-cost hole-transport materials. We use FDT on state-of-the-art devices and achieve power conversion e ciencies of 20.2%which compare favourably with control devices with 2,2,7,7-tetrakis(N,N-di-p-methoxyphenylamine)-9,9-spirobifluorene (spiro-OMeTAD). Thus, this new hole transporter has the potential to replace spiro-OMeTAD. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://img.hisupplier.com/var/userFiles/2016-03/21/162005448_efficientperovskitesolarcells.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
