Versatile Tri(pyrazolyl)phosphanes as Phosphorus Precursors for the Synthesis of Highly Emitting InP/ZnS Quantum Dots.
Versatile Tri(pyrazolyl)phosphanes as Phosphorus Precursors for the Synthesis of Highly Emitting InP/ZnS Quantum Dots.
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DOI：
10.1002/anie.201705650
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发表时间：
2017-11
影响因子：
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通讯作者：
René Panzer;Chris Guhrenz;Danny Haubold;R. Hübner;N. Gaponik;A. Eychmüller;J. Weigand
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文献类型：
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作者：
René Panzer;Chris Guhrenz;Danny Haubold;R. Hübner;N. Gaponik;A. Eychmüller;J. Weigand
三（吡唑基）膦（5 R1，R2）作为一种廉价、低毒的磷源，可方便地合成InP/ZnS量子点。由这些前体，产生P（奥拉）3（OLAH=油胺）的显著长期稳定的储备溶液（>6个月），从该储备溶液中方便地回收相应的吡唑。P（奥拉）3同时作为磷源和还原剂合成了高发射的InP/ZnS核/壳量子点。这些量子点的特征在于光谱范围在530-620 nm之间，光致发光量子产率（PL QY）在51- 62%之间。一个概念验证白色发光二极管（LED）应用的InP/ZnS量子点作为颜色转换层，以证明其适用性和可加工性。
Tri(pyrazolyl)phosphanes (5R1,R2 ) are utilized as an alternative, cheap and low-toxic phosphorus source for the convenient synthesis of InP/ZnS quantum dots (QDs). From these precursors, remarkably long-term stable stock solutions (>6 months) of P(OLA)3 (OLAH=oleylamine) are generated from which the respective pyrazoles are conveniently recovered. P(OLA)3 acts simultaneously as phosphorus source and reducing agent in the synthesis of highly emitting InP/ZnS core/shell QDs. These QDs are characterized by a spectral range between 530-620 nm and photoluminescence quantum yields (PL QYs) between 51-62 %. A proof-of-concept white light-emitting diode (LED) applying the InP/ZnS QDs as a color-conversion layer was built to demonstrate their applicability and processibility.