Mechanical Flexibility and Electrical Reliability of ZnO-Al Thin Films on Polymer Substrates Under Different External Deformation

D. Mohammed
{"title":"Mechanical Flexibility and Electrical Reliability of ZnO-Al Thin Films on Polymer Substrates Under Different External Deformation","authors":"D. Mohammed","doi":"10.2478/adms-2024-0003","DOIUrl":null,"url":null,"abstract":"\n Aluminum-doped zinc oxide (AZO) films have emerged as promising transparent electrodes for various optoelectronic applications due to their superior transparency, electrical conductivity, and cost-effectiveness compared to indium tin oxide (ITO). Despite their widespread use, investigations into the electromechanical properties of AZO films, especially under various mechanical deformations, remain limited. This study employs RF magnetron sputtering to deposit AZO films on polyethylene naphthalate (PEN) substrates and explores their mechanical behavior through uniaxial tensile fragmentation and bending tests, coupled with in-situ optical microscopy. Changes in electrical resistance of AZO films were monitored in situ during deformation. Fatigue behavior was examined to further understand mechanical failure, and SEM was used for surface characterization. A critical strain of about 3.1 percent was detected during uniaxial tensile testing, marking the onset of cracks in AZO-coated PEN. In contrast to thicker films, thinner films demonstrated improved stretchability beyond the initiation of crack onset strain. Tension and compression bending tests revealed that the material has excellent bendability, as shown by its critical radii of 5.4 mm and 3.9 mm, respectively. The bending reliability of AZO films under compression was found to be superior than that under tension.\n Bending fatigue experiments demonstrated that AZO films could withstand cyclic stress without experiencing no ticeable cracks after 100 cycles and with very minor resistance change. This study contributes to the creation of more reliable and optimized flexible optoelectronic devices by giving substantial quantitative data on the performance of AZO films when exposed to mechanical stress.","PeriodicalId":504147,"journal":{"name":"Advances in Materials Science","volume":"63 ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Materials Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/adms-2024-0003","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Aluminum-doped zinc oxide (AZO) films have emerged as promising transparent electrodes for various optoelectronic applications due to their superior transparency, electrical conductivity, and cost-effectiveness compared to indium tin oxide (ITO). Despite their widespread use, investigations into the electromechanical properties of AZO films, especially under various mechanical deformations, remain limited. This study employs RF magnetron sputtering to deposit AZO films on polyethylene naphthalate (PEN) substrates and explores their mechanical behavior through uniaxial tensile fragmentation and bending tests, coupled with in-situ optical microscopy. Changes in electrical resistance of AZO films were monitored in situ during deformation. Fatigue behavior was examined to further understand mechanical failure, and SEM was used for surface characterization. A critical strain of about 3.1 percent was detected during uniaxial tensile testing, marking the onset of cracks in AZO-coated PEN. In contrast to thicker films, thinner films demonstrated improved stretchability beyond the initiation of crack onset strain. Tension and compression bending tests revealed that the material has excellent bendability, as shown by its critical radii of 5.4 mm and 3.9 mm, respectively. The bending reliability of AZO films under compression was found to be superior than that under tension. Bending fatigue experiments demonstrated that AZO films could withstand cyclic stress without experiencing no ticeable cracks after 100 cycles and with very minor resistance change. This study contributes to the creation of more reliable and optimized flexible optoelectronic devices by giving substantial quantitative data on the performance of AZO films when exposed to mechanical stress.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
聚合物基底上的氧化锌-铝薄膜在不同外部形变条件下的机械柔韧性和电气可靠性
与氧化铟锡(ITO)相比,掺铝氧化锌(AZO)薄膜具有更高的透明度、导电性和成本效益,因此已成为各种光电应用中颇具前景的透明电极。尽管 AZO 薄膜被广泛使用,但对其机电特性,尤其是在各种机械变形条件下的机电特性的研究仍然有限。本研究采用射频磁控溅射技术在聚萘二甲酸乙二醇酯(PEN)基底上沉积 AZO 薄膜,并通过单轴拉伸破碎和弯曲测试以及原位光学显微镜来探索其机械行为。在变形过程中,对 AZO 薄膜的电阻变化进行了原位监测。对疲劳行为进行了研究,以进一步了解机械故障,并使用扫描电镜进行表面表征。在单轴拉伸测试中检测到了约 3.1% 的临界应变,这标志着 AZO 涂层 PEN 开始出现裂纹。与较厚的薄膜相比,较薄的薄膜在出现裂纹应变后的拉伸性有所改善。拉伸和压缩弯曲测试表明,这种材料具有出色的弯曲性,其临界半径分别为 5.4 毫米和 3.9 毫米。研究发现,AZO 薄膜在压缩条件下的弯曲可靠性优于在拉伸条件下的弯曲可靠性。弯曲疲劳实验表明,AZO 薄膜可以承受循环应力,在 100 次循环后不会出现可察觉的裂纹,阻力变化非常小。这项研究提供了有关 AZO 薄膜在机械应力作用下性能的大量定量数据,有助于制造更可靠、更优化的柔性光电器件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Effect of the Number of Shells on Selected Mechanical Properties of Parts Manufactured by FDM/FFF Technology Effect of Cement Dosing Without Additions (CPA) on High-Performance and Ordinary Concrete Based Glass Powder as Fine Partial Cement Replacement - A Comparative Study Structural and Optical Properties of Aluminium Nitride Thin Films Fabricated Using Pulsed Laser Deposition and DC Magnetron Sputtering on Various Substrates Application of Regression Models on the Prediction of Corrosion Degradation of a Crude Oil Distillation Unit Mechanical Flexibility and Electrical Reliability of ZnO-Al Thin Films on Polymer Substrates Under Different External Deformation
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1