Investigation of the Structural, Optical, and Electrical Properties of ZnO/4‐Amino‐2‐Methylquinoline p–n Heterojunction by Spin‐Coating Method

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physica Status Solidi A-applications and Materials Science Pub Date : 2024-08-21 DOI:10.1002/pssa.202400507

Ramazan Demir

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Abstract

A p–n heterojunction diode is fabricated using a p‐type 4‐amino‐2‐methylquinoline (C10H10N2) on an n‐type ZnO film and its structural, optical, and electrical properties are investigated. First, a ZnO thin film is prepared on an ITO substrate by spin coating. Subsequently, this ZnO film is coated with a C10H10N2 film using the same method. X‐ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), UV–vis spectroscopy, and current–voltage measurements are carried out on the prepared films. According to the XRD result, sharp peaks at 320.081, 340.488, and 360.548 are observed in the hexagonal phase of ZnO. At these angles, grain sizes of 15.308, 15.179, and 13.715 nm are calculated. The absorption peaks of electronic transitions π→π*, n→π*, and d→d* in the ZnO/C10H10N2 heterojunction film are observed. From the IV diagram, it can be seen that the heterojunction structure has a diode characteristic. From the IV data, the rectification factor is calculated to be 6.59 and its graph is drawn. With the Cheung method, ideality factor (n) = 2.87, series resistance (RS) = 1 MΩ, and shunt resistance (RSh) = 5 kΩ are found.

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利用自旋镀膜法研究氧化锌/4-氨基-2-甲基喹啉 p-n 异质结的结构、光学和电学特性

在 n 型氧化锌薄膜上使用 p 型 4-氨基-2-甲基喹啉 (C10H10N2) 制作了 p-n 异质结二极管，并对其结构、光学和电学特性进行了研究。首先，通过旋涂法在 ITO 基底上制备氧化锌薄膜。随后，用同样的方法在 ZnO 薄膜上镀上一层 C10H10N2 薄膜。对制备的薄膜进行了 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、原子力显微镜 (AFM)、紫外可见光谱和电流电压测量。X 射线衍射结果显示，氧化锌的六方相在 320.081、340.488 和 360.548 处出现了尖锐的峰值。按这些角度计算，晶粒大小分别为 15.308、15.179 和 13.715 nm。在 ZnO/C10H10N2 异质结薄膜中观察到电子跃迁 π→π*、n→π* 和 d→d* 的吸收峰。从 IV 图可以看出，异质结结构具有二极管特性。根据 IV 数据，计算出整流因子为 6.59，并绘制了整流因子图。根据 Cheung 方法，可求得理想化系数 (n) = 2.87，串联电阻 (RS) = 1 MΩ，并联电阻 (RSh) = 5 kΩ。

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.