Synthesis of NiO and Cu-NiO nanoparticles using Syzygium samarangense fruit extract and its evolution as inorganic hole transport layer in perovskite solar cells

IF 1.6 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

The European Physical Journal B Pub Date : 2025-04-22 DOI:10.1140/epjb/s10051-025-00914-5

Saformia Johnson, Dhanus Kumar Bharathamani, Khaja Moiduddin, Syed Hammad Mian, Zeyad Almutairi, Janarthanan Balasundharam

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Abstract

The current work used a bio-mediated green synthesis from the fruit extract of Syzygium samarangense to prepare nanoparticles of nickel oxide (NiO) and copper-doped NiO (Cu-NiO). X-ray diffraction (XRD), ultraviolet–visible (UV–Vis) spectroscopy, Fourier transform-infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) with EDAX, and TEM analysis were carried out for the structural and optical characteristics of NiO and Cu-NiO nanoparticles. UV–DRS spectroscopy reveals that the NiO has high absorption peak at 311 nm and Cu-NiO has its highest peak at 325 nm. The grain size of NiO and Cu-doped NiO nanoparticles were obtained as 18.23 nm and 21.32 nm with cubic structure with agglomeration and porosity. The inferences from the optical study revealed the suitability of the material as a hole transport layer in solar cells.

Graphical abstract

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用沙棘果提取物合成NiO和Cu-NiO纳米颗粒及其在钙钛矿太阳能电池中作为无机空穴传输层的演变

本研究采用生物介导的绿色合成方法，从翅果提取物中制备了氧化镍（NiO）和掺铜氧化镍（Cu-NiO）纳米颗粒。研究人员利用 X 射线衍射 (XRD)、紫外-可见 (UV-Vis) 光谱、傅立叶变换红外光谱 (FT-IR)、扫描电子显微镜 (SEM) 和 EDAX 以及 TEM 分析了氧化镍和氧化铜-NiO 纳米粒子的结构和光学特性。UV-DRS 光谱显示，NiO 在 311 纳米波长处有高吸收峰，而 Cu-NiO 在 325 纳米波长处有最高吸收峰。氧化镍和掺铜氧化镍纳米粒子的粒度分别为 18.23 纳米和 21.32 纳米，呈立方体结构，具有团聚和多孔性。光学研究的推论表明，该材料适合用作太阳能电池中的空穴传输层。图文摘要

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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