Degradation Studies of Colloidal Quantum Dot Light-Emitting
Diodes
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ABSTRACTThe degradation mechanism of CdSe/ZnS quantum dots (QDs) light-emitting diodes (LEDs) was investigated with steady-state and time-resolved photoluminescence measurements. Our study reveals that the degradation is associated with the decreasing quantum efficiency of the CdSe/ZnS QDs in the devices. Two mechanisms that cause the efficiency reduction were verified in the experiments: i.e., thermal instability and luminescence quenching.
2013 ◽
Vol 5
(22)
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pp. 12011-12016
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2016 ◽
Vol 9
(4)
◽
pp. 1130-1143
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Keyword(s):
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