期刊
ADVANCED MATERIALS
卷 27, 期 8, 页码 1437-1442出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201404636
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资金
- U.S. Army Research Laboratory
- U.S. Army Research Office through the Institute for Soldier Nanotechnologies [W911NF-13-D-0001]
- Center for Excitonics, an Energy Frontier Research Center - U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-SC0001088]
- Air Force [FA8721-05-C-0002]
- NSF
- Department of Defense, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship [32 CFR 168a]
- [FA9550-11-C-0028]
Core-shell PbS-CdS quantum dots enhance the peak external quantum efficiency of shortwave-infrared light-emitting devices by up to 50-100-fold (compared with core-only PbS devices). This is more than double the efficiency of previous quantum-dot light-emitting devices operating at wavelengths beyond 1 mu m, and results from the passivation of the PbS cores by the CdS shells against in situ photoluminescence quenching.
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