Green InP/ZnSeS/ZnS Core Multi-Shelled Quantum Dots Synthesized with Aminophosphine for Effective Display Applications

Liu, Pai1,2; Lou, Yajun1; Ding, Shihao1; Zhang, Wenda1,2; Wu, Zhenghui1,2; Yang, Hongcheng1,3; Xu, Bing1,2; Wang, Kai1,2; Sun, Xiao Wei1,2

2021-03-01

10.1002/adfm.202008453

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

InP quantum dots (QDs) are emerging as promising materials for replacing cadmium-based QDs in view of their heavy metal-free and tunable luminescence. However, the development of InP QD materials still lags due to the expensive and flammable phosphorus precursors, and also the unsatisfactory repeatability caused by the fast nucleation rate. Adopting lowly reactive P precursor aminophosphine can overcome this issue, but their low photoluminescence quantum yield (PLQY) and widening line widths do not apply to the practical application. Through engineering, the core-shell structure of QD, significantly promoted green emissions of QDs were obtained with PLQY of 95% and full width and half maximum (FWHM) of 45 nm, which demonstrated the highest PLQY record obtained from the aminophosphine system. Moreover, due to the residue halogen atoms on the QD surface as inorganic ligands to prevent further oxidization, these InP QDs demonstrated the ultra-long operational lifetime (over 1000 h) for QDs based color enhancement film. By optimizing the device structure, an inverted green InP quantum dot light-emitting diode (QLED) with external quantum efficiency (EQE) of 7.06% was also demonstrated, which showed a significant promise of these InP QDs in highly effective optoelectronic devices.

Alloyed Inorganic Ligands Inp Quantum Dots Quantum Dot Color Enhancement Films Quantum Dot Light-emitting Diode

SCI ; EI

英语

NI论文

第一 ; 通讯

National Key Research and Development Program of China[

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000608839800001

WILEY-V C H VERLAG GMBH

20210509858309

Flammable materials ; Heavy metals ; III-V semiconductors ; Indium phosphide ; Nanocrystals ; Optoelectronic devices ; Organic light emitting diodes (OLED) ; Semiconducting indium phosphide

Flame Research:521.4 ; Metallurgy and Metallography:531 ; Compound Semiconducting Materials:712.1.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Inorganic Compounds:804.2

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen Key Lab Adv Quantum Dot Displays & Light, Guangdong Univ Key Lab Adv Quantum Dot Displays &, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Minist Educ, Key Lab Energy Convers & Storage Technol, Shenzhen 518055, Peoples R China
3.Shenzhen Planck Innovat Technol Co Ltd, Shenzhen 518112, Peoples R China

Liu, Pai,Lou, Yajun,Ding, Shihao,et al. Green InP/ZnSeS/ZnS Core Multi-Shelled Quantum Dots Synthesized with Aminophosphine for Effective Display Applications[J]. ADVANCED FUNCTIONAL MATERIALS,2021,31(11).

Liu, Pai.,Lou, Yajun.,Ding, Shihao.,Zhang, Wenda.,Wu, Zhenghui.,...&Sun, Xiao Wei.(2021).Green InP/ZnSeS/ZnS Core Multi-Shelled Quantum Dots Synthesized with Aminophosphine for Effective Display Applications.ADVANCED FUNCTIONAL MATERIALS,31(11).

Liu, Pai,et al."Green InP/ZnSeS/ZnS Core Multi-Shelled Quantum Dots Synthesized with Aminophosphine for Effective Display Applications".ADVANCED FUNCTIONAL MATERIALS 31.11(2021).