PMID- 34886666 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211223 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 13 IP - 50 DP - 2021 Dec 22 TI - Hierarchical Artificial Compound Eyes with Wide Field-of-View and Antireflection Properties Prepared by Nanotip-Focused Electrohydrodynamic Jet Printing. PG - 60625-60635 LID - 10.1021/acsami.1c17436 [doi] AB - Artificial compound eyes (ACEs) endowed with durable superhydrophobicity, wide field-of-view (FOV), and antireflection properties are extremely appealing in advanced micro-optical systems. However, the simple and high-efficiency fabrication of ACEs with these functions is still a major challenge. Herein, inspired by moth eyes, ACEs with hierarchical macro/micro/nano structures were fabricated using the combination of nanotip-focused electrohydrodynamic jet (NFEJ) printing and air-assisted deformation processes. The NFEJ printing enables the direct and maskless fabrication of hierarchical micro/nanolens arrays (M/NLAs) without intermediate steps. The introduction of M/NLAs on the eye surface significantly improves the water hydrophobic performance with a water contact angle of 161.1 degrees and contact angle hysteresis (CAH) of 4.2 degrees and generally decreases the reflectance by 51% in the wavelength range of 350-1600 nm in comparison to the macroeye without any structures. The contact angle remains almost unchanged, and the CAH slightly increases from 4.2 degrees to 8.7 degrees after water jet impact for 20 min, indicating a durable superhydrophobicity. Moreover, the results confirm that the durable superhydrophobic ACEs with antireflection properties exhibit excellent imaging quality and a large FOV of up to 160 degrees without distortion. FAU - Su, Shijie AU - Su S AUID- ORCID: 0000-0002-7246-8732 AD - Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China. FAU - Liang, Junsheng AU - Liang J AD - Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China. AD - Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China. FAU - Li, Xiaojian AU - Li X AD - Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China. FAU - Xin, Wenwen AU - Xin W AD - Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China. FAU - Ye, Xushi AU - Ye X AD - Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China. FAU - Xiao, Jianping AU - Xiao J AD - Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China. FAU - Xu, Jun AU - Xu J AD - Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, China. FAU - Chen, Li AU - Chen L AD - Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China. FAU - Yin, Penghe AU - Yin P AD - Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China. LA - eng PT - Journal Article DEP - 20211209 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 SB - IM OTO - NOTNLM OT - antireflection OT - artificial compound eyes OT - hierarchical structures OT - nanotip-focused electrohydrodynamic jet printing OT - superhydrophobicity EDAT- 2021/12/11 06:00 MHDA- 2021/12/11 06:01 CRDT- 2021/12/10 05:31 PHST- 2021/12/11 06:00 [pubmed] PHST- 2021/12/11 06:01 [medline] PHST- 2021/12/10 05:31 [entrez] AID - 10.1021/acsami.1c17436 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2021 Dec 22;13(50):60625-60635. doi: 10.1021/acsami.1c17436. Epub 2021 Dec 9.