Organic-inorganic Perovskite nanocrystals and heteromaterial frameworks as next generation optoelectronic materials

We explore the synthesis of luminescent perovskite nanocrystals and their composites with superior environmental stability and optoelectronic properties. Additionally, our interests also lie in interfacing designed organic ligands (polymer, organic semiconductor) with inorganic nanoparticles to achieve the assembly of periodic hybrid frameworks with controlled nanoscale interfaces, microstructures, and much enhanced processibility.

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Recent publications:

Jurow, M. J.; Lampe, T.; Penzo, E.; Kang, J.; Koc, M.; Zechel, T.; Nett, Z.; Brady, M.; Wang, L.-W.; Alivisatos, A. P.; Cabrini, S.; Brutting, W.;* Liu, Y.* “Tunable Anisotropic Photon Emission from Self-Organized CsPbBr3 Perovskite Nanocrystals”, Nano Lett. 2017, 17, 4534–4540.

Pan, A.; Jurow, M.; Qiu, F.; Liu, Y.; Yang, J.; Urban, J. J.; He, L.;* Liu, Y.* “Templated Self-Assembly of One-Dimensional CsPbX3 Perovskite Nanocrystal Superlattices”, Nanoscale, accepted. DOI: 10.1039/C7NR06579E

Pan, A.; Jurow, M.; Qiu, F.; Yang, J.; Ren, B.; Urban, J. J.; He, L.;* Liu, Y.* “Nanorod Suprastructures from a Ternary Graphene Oxide-Polymer-CsPbX3 Perovskite Nanocrystal Composite that Display High Environmental Stability”, Nano Lett. in press. DOI: 10.1021/acs.nanolett.7b02959

Pan, A.; He, B.; Fan, X.; Liu, Z.; Urban, J. J.; Alivisatos, A. P.; He, L.;* Liu, Y.* Insight into the Ligand-Mediated Synthesis of Colloidal CsPbBr3 Perovskite Nanocrystals: The Role of Organic Acid, Base, and Cesium Precursors. ACS Nano 2016, 10, 7943-7954.

Ye, X.; Zhu, C.; Ercius, P.; Raja, S.; He, B.; Jones, M.; Hauwiller, M.; Liu, Y.; Xu, T.; Alivisatos, P.* “Structural diversity in binary superlattices self-assembled from polymer-grafted nanocrystals”, Nat. Commun. 2015, 6, 10052.

André, A.; Zherebetskyy, D.; Hanifi, D.; He, B.; Samadi Khoshkhoo, M.; Jankowski, M.; Chasse, T.; Wang, L-W.; Schreiber, F.; Salleo, A.; Liu, Y.; Scheele, M.* “Towards Conductive Mesocrystalline Assemblies: PbS Nanocrystals Cross-Linked with Tetrathiafulvalene Dicarboxylate” Chem. Mater. 2015, 27, 8105-8115.

Scheele, M.; Hanifi, D.; Zherebetskyy, D.; Chourou, S. T.; Axnanda, S.; Rancatore, B. J.; Thorkelsson, K.; Xu, T.; Liu, Z.; Wang, L.-W.; Liu, Y.; Alivisatos, A. P.* “PbS Nanoparticles Capped with Tetrathiafulvalenetetracarboxylate-Utilizing Energy Level Alignment for Efficient Carrier Transport”, ACS Nano 2014, 8, 2532-2540.

Scheele, M.; Engel, J. H.; Ferry, V. E.; Hanifi, D.; Liu, Y.; Alivisatos, A. P.* “Nonmonotonic Size Dependence in the Hole Mobility of Methoxide Stabilized PbSe Quantum Dot Solids”, ACS Nano 2013, 7, 6774-6781.

Collaborators:
Prof. Paul Alivisatos and Prof. Ting Xu, UCB
Prof. Wolfgang Bruetting, Augsburg University
Prof. Marcus Scheele, University of Tuebingen, Germany
Dr. Lin-Wang Wang, LBNL