Shahariar Chowdhury , Kam Sheng Lau , Asmaa Soheil Najm , Hasanain Salah Naeem , Araa Mebdir Holi , Nowshad Amin , A. Laref , Mohammad Shah Jamal , Chin Hua Chia
{"title":"溶胶-凝胶和自旋涂层合成al掺杂ZnO材料的结构、形态和光学性质:结晶度和掺杂效应的见解","authors":"Shahariar Chowdhury , Kam Sheng Lau , Asmaa Soheil Najm , Hasanain Salah Naeem , Araa Mebdir Holi , Nowshad Amin , A. Laref , Mohammad Shah Jamal , Chin Hua Chia","doi":"10.1016/j.materresbull.2025.113516","DOIUrl":null,"url":null,"abstract":"<div><div>Aluminium-doped zinc oxide (AZO) thin films were synthesized on glass substrates using a sol-gel spin-coating method. The influence of Al doping on structural, morphological, and optical properties was systematically studied. X-ray diffraction revealed reduced crystallinity with increasing Al concentration, from 92.75 % (for 0 % Al) to 84.84 % (for 8 % Al). While Raman spectroscopy highlighted disorder introduced by doping, by introducing peak at 581 cm⁻¹. FESEM confirmed increased particle agglomeration in surface morphology and particle size with doping. Whereas AFM showed increased surface roughness (6.23 – 48.75) nm. Mechanistic insights into the sol-gel process revealed the formation of ZnO through hydrolysis and condensation reactions of zinc acetate, with Al³⁺ ions substituting Zn²⁺ ions in the lattice. This substitution disrupted the crystal structure, introducing geometric disorder and altering surface characteristics. Among the investigated doping concentrations, the 4 % Al-doped ZnO films exhibited smaller particles with reduced aggregation, whereas higher concentrations (6 % and 8 %) led to increased surface roughness and decreased crystallinity. These findings highlight the tunability of AZO thin films for energy-related nanotechnologies and electronic devices.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113516"},"PeriodicalIF":5.3000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural, morphological, and optical properties of Al-doped ZnO Material synthesized via sol-gel and spin coating: Insights into crystallinity and doping effects\",\"authors\":\"Shahariar Chowdhury , Kam Sheng Lau , Asmaa Soheil Najm , Hasanain Salah Naeem , Araa Mebdir Holi , Nowshad Amin , A. Laref , Mohammad Shah Jamal , Chin Hua Chia\",\"doi\":\"10.1016/j.materresbull.2025.113516\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Aluminium-doped zinc oxide (AZO) thin films were synthesized on glass substrates using a sol-gel spin-coating method. The influence of Al doping on structural, morphological, and optical properties was systematically studied. X-ray diffraction revealed reduced crystallinity with increasing Al concentration, from 92.75 % (for 0 % Al) to 84.84 % (for 8 % Al). While Raman spectroscopy highlighted disorder introduced by doping, by introducing peak at 581 cm⁻¹. FESEM confirmed increased particle agglomeration in surface morphology and particle size with doping. Whereas AFM showed increased surface roughness (6.23 – 48.75) nm. Mechanistic insights into the sol-gel process revealed the formation of ZnO through hydrolysis and condensation reactions of zinc acetate, with Al³⁺ ions substituting Zn²⁺ ions in the lattice. This substitution disrupted the crystal structure, introducing geometric disorder and altering surface characteristics. Among the investigated doping concentrations, the 4 % Al-doped ZnO films exhibited smaller particles with reduced aggregation, whereas higher concentrations (6 % and 8 %) led to increased surface roughness and decreased crystallinity. These findings highlight the tunability of AZO thin films for energy-related nanotechnologies and electronic devices.</div></div>\",\"PeriodicalId\":18265,\"journal\":{\"name\":\"Materials Research Bulletin\",\"volume\":\"190 \",\"pages\":\"Article 113516\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2025-04-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Research Bulletin\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0025540825002247\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Research Bulletin","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025540825002247","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Structural, morphological, and optical properties of Al-doped ZnO Material synthesized via sol-gel and spin coating: Insights into crystallinity and doping effects
Aluminium-doped zinc oxide (AZO) thin films were synthesized on glass substrates using a sol-gel spin-coating method. The influence of Al doping on structural, morphological, and optical properties was systematically studied. X-ray diffraction revealed reduced crystallinity with increasing Al concentration, from 92.75 % (for 0 % Al) to 84.84 % (for 8 % Al). While Raman spectroscopy highlighted disorder introduced by doping, by introducing peak at 581 cm⁻¹. FESEM confirmed increased particle agglomeration in surface morphology and particle size with doping. Whereas AFM showed increased surface roughness (6.23 – 48.75) nm. Mechanistic insights into the sol-gel process revealed the formation of ZnO through hydrolysis and condensation reactions of zinc acetate, with Al³⁺ ions substituting Zn²⁺ ions in the lattice. This substitution disrupted the crystal structure, introducing geometric disorder and altering surface characteristics. Among the investigated doping concentrations, the 4 % Al-doped ZnO films exhibited smaller particles with reduced aggregation, whereas higher concentrations (6 % and 8 %) led to increased surface roughness and decreased crystallinity. These findings highlight the tunability of AZO thin films for energy-related nanotechnologies and electronic devices.
期刊介绍:
Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.