Efficient Full-Color Boron Nitride Quantum Dots for Thermostable Flexible Displays,ACS Nano

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Efficient Full-Color Boron Nitride Quantum Dots for Thermostable Flexible Displays
ACS Nano ( IF 15.8 ) Pub Date : 2021-07-29 , DOI: 10.1021/acsnano.1c04321
Yamei Ding ₁ , Ping He ₁ , Shaohan Li ₁ , Bo Chang ₁ , Shengli Zhang ₂ , Zhehan Wang ₁ , Jiayi Chen _{1,

3} , Jin Yu ₁ , Sanxie Wu ₄ , Haibo Zeng ₂ , Li Tao _{1,

3,

5}

Affiliation

Hexagonal boron nitride quantum dot (BNQD) has aroused great interest in the optoelectronics field due to their metal-free nature with promising optical properties. However, it has been a great challenge to modulate its photoluminescence to the long-wavelength region so far. Herein, BNQDs with full-color emission (420–610 nm) have been implemented by doping diverse amino ligands in different solvents for the first attempt. This color variation from blue, green, yellow-green, yellow to red is ascribed to the surface states tunable via amination degree. Attractively, the quantum yield of our blue BNQDs has set a record at 32.27%, and rare yellow-green BNQDs have been demonstrated. Combining good thermal dissipation capability and high transparency, our full-color BNQD holds great potential for transparent flexible display and security labels at the elevated temperature.

中文翻译：

用于耐高温柔性显示器的高效全色氮化硼量子点

六方氮化硼量子点（BNQD）由于其不含金属的性质和良好的光学性能而引起了光电子领域的极大兴趣。然而，迄今为止，将其光致发光调制到长波长区域一直是一个巨大的挑战。在此，首次尝试通过在不同溶剂中掺杂不同的氨基配体来实现具有全色发射（420-610 nm）的 BNQD。这种从蓝色、绿色、黄绿色、黄色到红色的颜色变化归因于可通过以下方式调节的表面状态胺化度。有吸引力的是，我们的蓝色 BNQD 的量子产率创下了 32.27% 的记录，并且已经证明了罕见的黄绿色 BNQD。我们的全彩 BNQD 结合了良好的散热能力和高透明度，在高温下具有用于透明柔性显示和安全标签的巨大潜力。

更新日期：2021-09-28

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