Short review on the instability and potential solutions for perovskite quantum dots

Current Research in Green and Sustainable Chemistry

Rajesh Kumar¹  Sudipta Som²  Shawn D. Lin³  Mohan Lal Meena³  Rajan Kumar Singh⁴  Karan Kumar Gupta⁴  Chung-Hsin Lu⁴  Somrita Dutta⁵ 

[1] Corresponding authors.;Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan, ROC;Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10617, Taiwan, ROC;Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan, ROC;Department of Physics, National Taiwan Normal University, Taipei, 10617, Taiwan, ROC;

关键词: Display devices;    Micro-LED;    wLED;    Quantum dot;    Instability;   

DOI  :  

来源: DOAJ

【 摘 要 】

Micro-light-emitting diodes (μ-LEDs) are the significant to next-generation displays, making it possible to offer innovative applications in virtual/augmented reality, mobile phones, ultrahigh-definition televisions, and wearable devices that meet the individualized needs of advanced applications. Due to the limited absorption cross-section, traditional color conversion phosphor cannot provide adequate brightness and yield to sustain high-resolution screens when LED chip sizes decrease below 20 ​μm. Due to their exceptional luminescence efficiency, color tunability, narrow bandwidth, quantum dot (QD) materials are projected to fill this gap, providing a strong full-color solution for μ-LED displays. The eye-catching optical property of perovskite quantum dots (PQDs) and their cost-effective manufacturing have attracted a wide range of industries and academic institutions. In spite of their unprecedented success, the lack of stability is a prevalent concern in all perovskite-related domains, and it restricts their wide applicability. The structural and irradiant influences on perovskites' optoelectronic characteristics and stability is the main issue for the present time. Hence, the present graphical review summarizes all the intrinsic and extrinsic aspects for the degradation of PQDs. An analysis of the sources of the instability of PQDs, including structural instability, interfacial instability, and atmospheric instability is carried out in details. We will conclude with some suggestions to improve the stability of the PQDs and device performance. By exploring the research pursuit of instability and related present and future mitigation strategies, the present graphical review will certainly open new perspectives on PQDs.

【 授权许可】

Unknown