Thermally Processed Quantum-Dot Polypropylene Composite Color Converter Film for Displays

Fang, Fan1,2,3; Wen, Zuoliang2,3,5; Chen, Wei2,3; Wang, Zhaojin2,3; Sun, Jiayun2,3,4; Liu, Haochen2,3; Tang, Haodong2,3; Hao, Junjie2,3; Liu, Pai2,3,4; Xu, Bing6; Zhang, Zhikuan6; Wang, Kai2,3,4; Teo, Kie Leong5; Ertugrul, Mehmet7,8,9; Lei, Wei1; Sun, Xiao Wei2,3,4

2022-07-01

10.1021/acsami.2c08669

ACS Applied Materials & Interfaces   Impact Factor & Quartile

1944-8244

1944-8252

ABSTRACT: Quantum dots (QDs) have attracted much attention as one of the most promising candidates for next-generation display materials. However, stability is still a big challenge for QDs. Herein, we encapsulated QDs in a thermoplastic polypropylene (PP) matrix by thermal processing technology to prepare a stabler color conversion film for the first time. Thermal processing technology expands the packaging materials of QDs from traditional soluble polymers to thermoplastic polymers such as PP with easy processing and a low cost. We showed that the QDs in the PP film exhibited longerlasting stability than the traditional PMMA film. After 216 h of blue light accelerated aging test, the QDs maintained more than 90% of the initial performance in the PP film but dropped to less than 25% in the PMMA film. Moreover, the reasons for the improved stability have been further discussed. It was found that the PP-H film not only possessed better barriers to moisture and oxygen, but the absence of ester groups also led to a milder environment around the QDs. The results show that ester groups have stronger electronegativity and easily cause the ligands on the surface of QDs to fall off, which lead to performance degradation.

  quantum dots polypropylene stability thermal processed color converter fi lm

SCI ; EI

English

Corresponding

National Natural Science Foundation of China["61875082","61405089","62005115"] ; Key-Area Research and Development Program of Guangdong Province["2019B010925001","2019B010924001"] ; Shenzhen Peacock Team Project[KQTD2016030111203005] ; Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting[ZDSYS201707281632549] ; Natural Science Foundation of Jiangsu Province[BK20190774] ; Jiangsu Province College Graduate Research Innovation Program[KYCX20_0104] ; Fundamental Research Funds for the Central Universities[YJ201955]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000827090700001

AMER CHEMICAL SOC

20223112521616

Chemical bonds ; Color ; Electronegativity ; Esters ; Heat treatment ; Nanocrystals ; Packaging materials ; Reinforced plastics ; Semiconductor quantum dots ; Stability ; Testing

Heat Treatment Processes:537.1 ; Packaging Materials:694.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Crystalline Solids:933.1

Web of Science

1.Southeast Univ, Sch Elect Sci & Engn, Nanjing 210096, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Univ, Key Lab Adv Quantum Dot Displays & Lighting, Guangdong Hong Kong Macao Joint Lab Photon Thermal, Hong Kong 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Minist Educ, Key Lab Energy Convers & Storage Technol, Shenzhen 518055, Peoples R China
5.Natl Univ Singapore, Fac Engn, Dept Elect & Comp Engn, Singapore 119077, Singapore
6.Shenzhen Planck Innovat Technol Co, Ltd, Shenzhen 518116, Peoples R China
7.Ataturk Univ, Dept Nanosci & Nanoengn Fac Engn, Dept Elect & Elect Engn, TR-25240 Erzurum, Turkey
8.Univ Putra Malaysia, Fac Engn, Dept Elect & Elect Engn, Seri Kembangan 43400, Selangor, Malaysia
9.Manas Univ, Fac Engn, Dept Elect Engn, Bishkek 720044, Kyrgyzstan

Fang, Fan,Wen, Zuoliang,Chen, Wei,et al. Thermally Processed Quantum-Dot Polypropylene Composite Color Converter Film for Displays[J]. ACS Applied Materials & Interfaces,2022,14:31160-31169.

Fang, Fan.,Wen, Zuoliang.,Chen, Wei.,Wang, Zhaojin.,Sun, Jiayun.,...&Sun, Xiao Wei.(2022).Thermally Processed Quantum-Dot Polypropylene Composite Color Converter Film for Displays.ACS Applied Materials & Interfaces,14,31160-31169.

Fang, Fan,et al."Thermally Processed Quantum-Dot Polypropylene Composite Color Converter Film for Displays".ACS Applied Materials & Interfaces 14(2022):31160-31169.