Ellipsometric studies of nickel oxide thin films synthesized via spray pyrolysis at varied substrate temperatures for optoelectronic applications

微晶 折射率 带隙 基质(水族馆) 薄膜 化学 椭圆偏振法 摩尔吸收率 分析化学(期刊) 氧化镍 氧化物 衍射 波长 光学 光电子学 材料科学 结晶学 纳米技术 有机化学 物理 地质学 海洋学
作者
Abdelhamid Bounegab,Mohammed Boulesbaa
出处
期刊:Spectroscopy Letters [Taylor & Francis]
卷期号:56 (7): 398-415
标识
DOI:10.1080/00387010.2023.2241538
摘要

AbstractThe impacts of the substrate temperature on diverse microstructural, morphological, and optical features of the nickel oxide films deposited via spray pyrolysis were examined. The X-ray diffraction patterns revealed a dominant peak with (1 1 1) favored orientation for all the deposited samples. As the temperature went up from 350 to 450 °C, the indirect and direct band gap energies increased between 2.65 and 2.77 eV and from 3.80 to 3.89 eV, respectively. The thickness and the optical constants of the nickel oxide were estimated by fitting the measured Psi and Delta parameters by adopting a suitable optical model based on B-splines in the wavelength range of 380–900 nm. We obtained that the refractive index significantly decreased from 1.717 to 1.59. But, the extinction coefficient substantially augmented from 0.383 to 0.515. Furthermore, the values of the average oscillator and the dispersion energies were estimated by utilizing the Wemple-DiDomento model. At last, there was a correlation between the different sizes of the crystallite and the optical parameters of the nickel oxide thin films. The optical band gap increased while the refractive index and Urbach energy reduced with a rise in crystallite size.Keywords: Nickel oxidespray pyrolysissubstrate temperatureultraviolet spectroscopyspectroscopic ellipsometry AcknowledgmentsThe authors acknowledge the director and all members of the laboratory of electrical engineering (LAGE) (university of Ouargla) for their support of the doctoral project. The authros are grateful to all members of the L.R.P.P.S laboratory (university of Ouargla) for their services and technical assistance in extending the facility of Spray pyrolysis technique, UV-vis, and spectroscopic ellipsometry measurements.Disclosure statementNo potential conflict of interest was reported by the author(s).

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
浩浩完成签到 ,获得积分0
刚刚
1秒前
lpx43完成签到,获得积分10
1秒前
zz2905发布了新的文献求助10
4秒前
一蓑烟雨完成签到,获得积分10
4秒前
4秒前
6秒前
崔崔发布了新的文献求助10
7秒前
ff不吃芹菜完成签到,获得积分10
8秒前
叶子完成签到,获得积分10
8秒前
唐唐完成签到,获得积分10
9秒前
123发布了新的文献求助10
9秒前
12秒前
朵朵完成签到,获得积分10
14秒前
发呆的小号完成签到 ,获得积分10
14秒前
充电宝应助原本采纳,获得10
16秒前
山260完成签到 ,获得积分10
16秒前
badada完成签到,获得积分10
16秒前
田様应助科研通管家采纳,获得10
18秒前
大模型应助科研通管家采纳,获得10
18秒前
科研通AI2S应助科研通管家采纳,获得10
18秒前
伶俐乐菱应助科研通管家采纳,获得10
19秒前
19秒前
19秒前
19秒前
shadow完成签到,获得积分10
20秒前
sen123完成签到,获得积分10
21秒前
123完成签到,获得积分20
22秒前
23秒前
NATURECATCHER完成签到,获得积分10
23秒前
温暖霸完成签到,获得积分10
23秒前
以筱完成签到,获得积分10
24秒前
NexusExplorer应助崔崔采纳,获得10
24秒前
CipherSage应助Passskd采纳,获得10
28秒前
29秒前
子睿完成签到,获得积分10
29秒前
背后雨柏完成签到 ,获得积分10
29秒前
30秒前
nanana发布了新的文献求助10
31秒前
量子星尘发布了新的文献求助10
31秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038235
求助须知:如何正确求助?哪些是违规求助? 3575992
关于积分的说明 11374009
捐赠科研通 3305760
什么是DOI,文献DOI怎么找? 1819276
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022