期刊
ACS APPLIED MATERIALS & INTERFACES
卷 15, 期 7, 页码 9629-9637出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.2c20982
关键词
semiconductor nanocrystals; surface chemistry; QD-LED; blade coating; 3D printing; stereolithography SLA
Quantum dots (QDs) are extensively used as light emitters in photonic and optoelectronic applications. To prevent degradation of their optical properties, QDs must be encapsulated between barrier layers to shield them from oxygen and water vapor. A new approach for direct patterning of QDs through maskless lithography has been developed.
For their unique optical properties, quantum dots (QDs) have been extensively used as light emitters in a number of photonic and optoelectronic applications. They even met commercialization success through their implementation in high -end displays with unmatched brightness and color rendering. For such applications, however, QDs must be shielded from oxygen and water vapor, which are known to degrade their optical properties over time. Even with highly qualitative QDs, this can only be achieved through their encapsulation between barrier layers. With the emergence of mini-and microLED for higher contrast and miniaturized displays, new strategies must be found for the concomitant patterning and encapsulation of QDs, with sub-millimeter resolution. To this end, we developed a new approach for the direct patterning of QDs through maskless lithography. By combining QDs in photopolymerizable resins with digital light processing (DLP) projectors, we developed a versatile and massively parallel fabrication process for the additive manufacturing of functional structures that we refer to as QD pockets. These 3D heterostructures are designed to provide isotropic encapsulation of the QDs, and hence prevent edge ingress from the lateral sides of QD films, which remains a shortcoming of the current technologies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据