The Enhancement of Visible Absorption of Cu Doped ZnO Nanorods on Patterned Substrates

My Hoa Tong, Thi Hoa Lai, Nhat Minh Nguyen, Thi Kieu Hanh Ta, Thanh Tuan Anh Pham, Tran My Hoa Huynh, Cong Khanh Tran, Bach Thang Phan, Vinh Quang Dang

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Published Mar 12, 2021
DOI: https://doi.org/10.25073/2588-1124/vnumap.4569

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TONG, My Hoa et al. The Enhancement of Visible Absorption of Cu Doped ZnO Nanorods on Patterned Substrates. VNU Journal of Science: Mathematics - Physics, [S.l.], v. 37, n. 1, mar. 2021. ISSN 2588-1124. Available at: <https://js.vnu.edu.vn/MaP/article/view/4569>. Date accessed: 26 apr. 2024. doi: https://doi.org/10.25073/2588-1124/vnumap.4569.
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Vol 37 No 1
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Original Articles

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Abstract

: We report the antireflection and light absorption in visible region by new stretchable substrates with patterned structure. Mogul substrates with 3-Dimentional structures were fabricated by using polydimethyl – siloxane that imitate the nanostructures surface. Then, Copper doped ZnO NRs on mogul-patterned surface by hydrothermal method at low temperature. The optical properties, morphology and structures of ZnO:Cu NRs were investigated through out of measurement the scanning electron microscopy, X-Ray diffraction and ultraviolet-visible spectroscopy, respectively. The results show the Cu doped ZnO NRs were uniformly and dense grown on mogul substrates, well oriented in the (002) plane. Additionally, the light absorption can be significantly enhanced to more 10% in a wide spectral range (400-800 nm) due to the reduce reflection. Growing ZnO NRs doping on new stretchable substrates with a mogul-patterned surface were successfully fabricated and applicable in the flexible and stretchable optoelectronic devices.


 

Keywords: Doping, patterned surface, mogul, ZnO NRs, visible absorption.

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