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Science. 2016 Aug 26;353(6302). pii: aac5523. doi: 10.1126/science.aac5523.

Building devices from colloidal quantum dots.

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Department of Electrical and Systems Engineering, Department of Materials Science and Engineering, and Department of Chemistry, University of Pennsylvania, 200 South 33rd Street, Philadelphia, PA 19104, USA.
Schulich Faculty of Chemistry, Solid State Institute and Russell Berrie Nanotechnology Institute, Technion, Haifa 32000, Israel.
Department of Electrical and Computer Engineering, 10 King's College Rd, Toronto ON M5S 3G4, Canada.
Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL 60637, USA. Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL 60439, USA.


The continued growth of mobile and interactive computing requires devices manufactured with low-cost processes, compatible with large-area and flexible form factors, and with additional functionality. We review recent advances in the design of electronic and optoelectronic devices that use colloidal semiconductor quantum dots (QDs). The properties of materials assembled of QDs may be tailored not only by the atomic composition but also by the size, shape, and surface functionalization of the individual QDs and by the communication among these QDs. The chemical and physical properties of QD surfaces and the interfaces in QD devices are of particular importance, and these enable the solution-based fabrication of low-cost, large-area, flexible, and functional devices. We discuss challenges that must be addressed in the move to solution-processed functional optoelectronic nanomaterials.


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