Electrohydrodynamically printed microlens arrays with controllable curvature based on surface functionalization

Wenfeng Cai; Huihui Xia; Weiwu Li; Delai Kong; Zongjun Ma; Ming Cheng; Jiawei Wang; Jianxun Liu; Xiaochuan Yang; Dan Luo; Weiwei Deng; Wenwei Xu; Yan Jun Liu

doi:10.1016/j.surfin.2024.103935

Electrohydrodynamically printed microlens arrays with controllable curvature based on surface functionalization

Wenfeng Cai, Huihui Xia, Weiwu Li, Delai Kong, Zongjun Ma, Ming Cheng, Jiawei Wang, Jianxun Liu, Xiaochuan Yang, Dan Luo, Weiwei Deng, Wenwei Xu^*, Yan Jun Liu^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

7 Citations (Scopus)

Abstract

Precisely controlling the optical characteristics of the microlens array (MLA) is a key issue for the MLA's fabrication and its applications. A cost-effective method for fabricating MLA with different curvatures and diameters by surface functionalization and electrohydrodynamic inkjet (E-jet) printing is proposed. The surface with self-assembled monolayers has low surface energy, which greatly improves the contact angle of the microlens. The UV-ozone treatment and neutral density filters with different optical densities are used to control the wettability of the substrates. Based on this method, the curvatures of the microlens can be controlled easily and the numerical aperture (NA) of the microlens can be adjusted from 0.18 to 0.49. Compared with traditional fabrication techniques, the method we demonstrated is flexible, low-cost, rapid, and capable of fabricating MLA with large area, high packing density, desirable NA, and diameters.

Original language	English
Article number	103935
Journal	Surfaces and Interfaces
Volume	46
DOIs	https://doi.org/10.1016/j.surfin.2024.103935
Publication status	Published - Mar 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2024 Elsevier B.V.

Keywords

Electrohydrodynamic inkjet printing (E-jet)
Microlens array
Self-assembled monolayers (SAMs)

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10.1016/j.surfin.2024.103935

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@article{5ae91bbb908445809bdb5aa5cd69fbe2,

title = "Electrohydrodynamically printed microlens arrays with controllable curvature based on surface functionalization",

abstract = "Precisely controlling the optical characteristics of the microlens array (MLA) is a key issue for the MLA's fabrication and its applications. A cost-effective method for fabricating MLA with different curvatures and diameters by surface functionalization and electrohydrodynamic inkjet (E-jet) printing is proposed. The surface with self-assembled monolayers has low surface energy, which greatly improves the contact angle of the microlens. The UV-ozone treatment and neutral density filters with different optical densities are used to control the wettability of the substrates. Based on this method, the curvatures of the microlens can be controlled easily and the numerical aperture (NA) of the microlens can be adjusted from 0.18 to 0.49. Compared with traditional fabrication techniques, the method we demonstrated is flexible, low-cost, rapid, and capable of fabricating MLA with large area, high packing density, desirable NA, and diameters.",

keywords = "Electrohydrodynamic inkjet printing (E-jet), Microlens array, Self-assembled monolayers (SAMs)",

author = "Wenfeng Cai and Huihui Xia and Weiwu Li and Delai Kong and Zongjun Ma and Ming Cheng and Jiawei Wang and Jianxun Liu and Xiaochuan Yang and Dan Luo and Weiwei Deng and Wenwei Xu and Liu, \{Yan Jun\}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = mar,

doi = "10.1016/j.surfin.2024.103935",

language = "English",

volume = "46",

journal = "Surfaces and Interfaces",

issn = "2468-0230",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Electrohydrodynamically printed microlens arrays with controllable curvature based on surface functionalization

AU - Cai, Wenfeng

AU - Xia, Huihui

AU - Li, Weiwu

AU - Kong, Delai

AU - Ma, Zongjun

AU - Cheng, Ming

AU - Wang, Jiawei

AU - Liu, Jianxun

AU - Yang, Xiaochuan

AU - Luo, Dan

AU - Deng, Weiwei

AU - Xu, Wenwei

AU - Liu, Yan Jun

PY - 2024/3

Y1 - 2024/3

N2 - Precisely controlling the optical characteristics of the microlens array (MLA) is a key issue for the MLA's fabrication and its applications. A cost-effective method for fabricating MLA with different curvatures and diameters by surface functionalization and electrohydrodynamic inkjet (E-jet) printing is proposed. The surface with self-assembled monolayers has low surface energy, which greatly improves the contact angle of the microlens. The UV-ozone treatment and neutral density filters with different optical densities are used to control the wettability of the substrates. Based on this method, the curvatures of the microlens can be controlled easily and the numerical aperture (NA) of the microlens can be adjusted from 0.18 to 0.49. Compared with traditional fabrication techniques, the method we demonstrated is flexible, low-cost, rapid, and capable of fabricating MLA with large area, high packing density, desirable NA, and diameters.

AB - Precisely controlling the optical characteristics of the microlens array (MLA) is a key issue for the MLA's fabrication and its applications. A cost-effective method for fabricating MLA with different curvatures and diameters by surface functionalization and electrohydrodynamic inkjet (E-jet) printing is proposed. The surface with self-assembled monolayers has low surface energy, which greatly improves the contact angle of the microlens. The UV-ozone treatment and neutral density filters with different optical densities are used to control the wettability of the substrates. Based on this method, the curvatures of the microlens can be controlled easily and the numerical aperture (NA) of the microlens can be adjusted from 0.18 to 0.49. Compared with traditional fabrication techniques, the method we demonstrated is flexible, low-cost, rapid, and capable of fabricating MLA with large area, high packing density, desirable NA, and diameters.

KW - Electrohydrodynamic inkjet printing (E-jet)

KW - Microlens array

KW - Self-assembled monolayers (SAMs)

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001172275800001

UR - https://www.scopus.com/pages/publications/85183503161

U2 - 10.1016/j.surfin.2024.103935

DO - 10.1016/j.surfin.2024.103935

M3 - Journal Article

SN - 2468-0230

VL - 46

JO - Surfaces and Interfaces

JF - Surfaces and Interfaces

M1 - 103935

ER -

Electrohydrodynamically printed microlens arrays with controllable curvature based on surface functionalization

Abstract

Bibliographical note

Keywords

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