Dual-Solvent Screening for Nondestructive In-Situ Optical Patterning of CsPbX3 QDs/PMMA

IF 17.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2026-11-09 DOI:10.1021/acsenergylett.6c02657

Hong Zhu,Yuhui Dong,Yuyao Feng,Yucong Ji,Xiangyi Shi,Liang Ke,Yousheng Zou,Haibo Zeng

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Abstract

Perovskite quantum dot (PQD)-polymer composites are widely pursued for display devices due to their excellent film-forming capacity, low cost, and favorable process compatibility. However, interfacial incompatibility between PQDs and polymers from mismatched surface chemistry triggers PQD aggregation and severe photoluminescence quenching, hindering microdisplay applications. Herein, a dual-solvent screening strategy is demonstrated for I-184-initiated crosslinked PQD-PMMA photoresists to balance solubility and lead-ion coordination strength. Undesired lead-solvent intermediate formation and residual solvent accumulation are suppressed to homogenize PQD dispersion and preserve optical performance. The 20 μm green patterned film retains 93% of the initial photoluminescence quantum yield with no photoluminescence peak shift and a narrow full width at half-maximum of 16.6 nm. The PQD pattern presents sharp pixel edges, 7.10% critical dimension deviation, 97.1% replication rate, and intersection over union of 0.92. This solvent engineering enables the revitalization of conventional polymers and addresses bottlenecks in photolithographic patterning of PQD-polymer composites.

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CsPbX3量子点/PMMA无损原位光学图像化的双溶剂筛选

钙钛矿量子点(PQD)-聚合物复合材料因其优异的成膜能力、低成本和良好的工艺兼容性而被广泛应用于显示器件。然而，由于表面化学不匹配，PQD与聚合物之间的界面不相容引发了PQD聚集和严重的光致发光猝灭，阻碍了微显示的应用。本文展示了一种双溶剂筛选策略，以平衡i -184引发的交联PQD-PMMA光抗剂的溶解度和铅离子配位强度。抑制了不希望的铅溶剂中间体的形成和残余溶剂的积累，以均匀化PQD色散并保持光学性能。20 μm的绿色图案膜保持了初始光致发光量子产率的93%，没有光致发光峰移，半峰宽窄，为16.6 nm。PQD模式具有清晰的像素边缘、7.10%的临界尺寸偏差、97.1%的复制率和0.92的交比并。这种溶剂工程使传统聚合物得以复兴，并解决了pqd聚合物复合材料光刻图像化的瓶颈。

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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.