Synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral-shaped quantum dots for blue light-emitting diodesElectronic supplementary information (ESI) available. See DOI: 10.1039/c7tc02927f
Blue light-emitting diodes (LEDs) offer new opportunities in practical solid-state lighting and could play a significant role in reducing global energy consumption. Here, for the first time, we report the synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral shaped QDs for blue...
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creator | Shen, Wei Tang, Haiyan Yang, Xiaolei Cao, Zengle Cheng, Tai Wang, Xiaoyong Tan, Zhanao You, Jingbi Deng, Zhengtao |
description | Blue light-emitting diodes (LEDs) offer new opportunities in practical solid-state lighting and could play a significant role in reducing global energy consumption. Here, for the first time, we report the synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral shaped QDs for blue LED applications. These QDs have absolute fluorescence quantum yield (QY) up to 76%, along with a full width at half-maximum as narrow as 44 nm and a prolonged photoluminescence lifetime of above 60 ns, which are records for blue InP QDs. In addition, these small-core/thick-shell QDs show improved stability for over 1000 hours of storage under ambient conditions. Correspondingly, blue LED devices with a maximum luminance of 90 cd m
−2
were successfully demonstrated using InP/ZnS QDs as the active layer. This work may pave the way for the development of next generation environmentally friendly blue light sources using heavy-metal-free QDs with high efficiency, high color purity and high stability.
Highly fluorescent InP/ZnS small-core/thick-shell quantum dots were synthesized for constructing heavy-metal-free blue quantum dot-light-emitting diodes. |
doi_str_mv | 10.1039/c7tc02927f |
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−2
were successfully demonstrated using InP/ZnS QDs as the active layer. This work may pave the way for the development of next generation environmentally friendly blue light sources using heavy-metal-free QDs with high efficiency, high color purity and high stability.
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−2
were successfully demonstrated using InP/ZnS QDs as the active layer. This work may pave the way for the development of next generation environmentally friendly blue light sources using heavy-metal-free QDs with high efficiency, high color purity and high stability.
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−2
were successfully demonstrated using InP/ZnS QDs as the active layer. This work may pave the way for the development of next generation environmentally friendly blue light sources using heavy-metal-free QDs with high efficiency, high color purity and high stability.
Highly fluorescent InP/ZnS small-core/thick-shell quantum dots were synthesized for constructing heavy-metal-free blue quantum dot-light-emitting diodes.</abstract><doi>10.1039/c7tc02927f</doi><tpages>7</tpages></addata></record> |
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source | Royal Society Of Chemistry Journals 2008- |
title | Synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral-shaped quantum dots for blue light-emitting diodesElectronic supplementary information (ESI) available. See DOI: 10.1039/c7tc02927f |
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