Damgaci Elif, Kartal Emre, Gucluer Furkan, Seyhan Ayse, Kaplan Yuksel
Department of Mechanical Engineering, Nigde Omer Halisdemir University, Nigde 51240, Türkiye.
Nanotechnology Application and Research Center, Nigde Omer Halisdemir University, Nigde 51240, Türkiye.
Materials (Basel). 2024 Jun 6;17(11):2784. doi: 10.3390/ma17112784.
This study examined the impact of temperature optimization on indium tin oxide (ITO) films in monolithic HJT/perovskite tandem solar cells. ITO films were deposited using magnetron sputtering at temperatures ranging from room temperature (25 °C) to 250 °C. The sputtering target was ITO, with a mass ratio of InO to SnO of 90% to 10%. The effects of temperature on the ITO film were analyzed using X-ray diffraction (XRD), spectroscopic ellipsometry, and sheet resistance measurements. Results showed that all ITO films exhibited a polycrystalline morphology, with diffraction peaks corresponding to planes (211), (222), (400), (440), and (622), indicating a cubic bixbyite crystal structure. The light transmittance exceeded 80%, and the sheet resistance was 75.1 Ω/sq for ITO deposited at 200 °C. The optical bandgap of deposited ITO films ranged between 3.90 eV and 3.93 eV. Structural and morphological characterization of the perovskite solar cell was performed using XRD and FE-SEM. Tandem solar cell performance was evaluated by analyzing current density-voltage characteristics under simulated sunlight. By optimizing the ITO deposition temperature, the tandem cell achieved a power conversion efficiency (PCE) of 16.74%, resulting in enhanced tandem cell efficiency.
本研究考察了温度优化对单片式异质结结/钙钛矿串联太阳能电池中氧化铟锡（ITO）薄膜的影响。采用磁控溅射在室温（25℃）至250℃的温度范围内沉积ITO薄膜。溅射靶材为ITO，InO与SnO的质量比为90%至10%。使用X射线衍射（XRD）、光谱椭偏仪和表面电阻测量分析温度对ITO薄膜的影响。结果表明，所有ITO薄膜均呈现多晶形态，具有对应于（211）、（222）、（400）、（440）和（622）晶面的衍射峰，表明为立方氧化铟晶体结构。在200℃沉积的ITO的透光率超过80%，表面电阻为75.1Ω/sq。沉积的ITO薄膜的光学带隙在3.90eV至3.93eV之间。使用XRD和场发射扫描电子显微镜（FE-SEM）对钙钛矿太阳能电池进行结构和形态表征。通过分析模拟太阳光下的电流密度-电压特性来评估串联太阳能电池性能。通过优化ITO沉积温度，串联电池实现了16.74%的功率转换效率（PCE），从而提高了串联电池效率。
