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In Situ Inkjet Printing Strategy for Fabricating Perovskite Quantum Dot Patterns
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2019-07-11 , DOI: 10.1002/adfm.201903648
Lifu Shi 1 , Linghai Meng 1 , Feng Jiang 1 , Yong Ge 1 , Fei Li 1 , Xian‐gang Wu 1 , Haizheng Zhong 1
Affiliation  

Perovskite quantum dots are emerging as attractive materials for photonic and optoelectronic applications. Patterning is an important step to incorporate them into display, anti‐counterfeiting, and optical chip applications. In this work, an in situ inkjet printing strategy is demonstrated for fabricating perovskite quantum dots patterns by printing perovskite precursor solutions onto a polymeric layer. Importantly, this strategy can achieve bright photoluminescence with a quantum yield up to 80% and shows broad applicability to a variety of perovskites and polymers. Moreover, the as‐fabricated perovskite quantum dots patterns are composed of a microdisks array on the surface of polymeric layer. The size of these microdisks can be varied by adjusting the printing temperature. To demonstrate the potential use in display and advanced anti‐counterfeiting applications, color pixel patterns and 2D code pattern are fabricated by varying the precursor solutions. The combination of superior photoluminescence properties, simple process, and low cost makes the in situ inkjet printing strategy very promising for patterning perovskite quantum dots toward photonic integrations.

中文翻译:

用于制造钙钛矿量子点图案的原位喷墨印刷策略

钙钛矿量子点正在成为光子和光电应用的有吸引力的材料。图案化是将它们整合到显示,防伪和光学芯片应用中的重要步骤。在这项工作中,演示了通过将钙钛矿前体溶液印刷到聚合物层上来制造钙钛矿量子点图案的原位喷墨印刷策略。重要的是,该策略可以实现高达80%的量子产率的明亮光致发光,并显示出对各种钙钛矿和聚合物的广泛适用性。此外,所制造的钙钛矿量子点图案由聚合物层表面上的微盘阵列组成。这些微盘的大小可以通过调节打印温度来改变。为了演示在显示和高级防伪应用中的潜在用途,通过改变前驱解决方案来制造彩色像素图案和2D代码图案。优异的光致发光特性,简单的工艺和低成本的结合,使得原位喷墨打印策略非常有希望将钙钛矿量子点构图成光子集成体。
更新日期:2019-07-11
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