在 YSZ (001) 基底上用脉冲激光沉积作为太阳能水分离光电阴极的二长石氧化物薄膜

IF 5.8 2区环境科学与生态学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Environmental Science: Nano Pub Date : 2024-11-15 DOI:10.1039/d4en00706a

Chenyu Zhou, Atiya Banerjee, Esteban Luis Fornero, Zhaoyi Xi, Xiao Tong, Eli Stavitski, Xiaohui Qu, Sara E. Mason, Dario J. Stacchiola, Mingzhao Liu

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引用次数: 0

摘要

利用丰富的地球和环境友好型材料开发太阳能转换器是实现可持续未来的关键途径之一。在这项研究中，利用脉冲激光沉积法制造了结晶的铁石棉相 CuAlO2 和 CuFeO2 薄膜太阳能水分离光电阴极。研究发现，只有在无氧气氛中进行高温退火后，才能形成所需的铁石棉相。通过将第一原理计算的模拟结果与同步辐射 X 射线吸收近边缘结构 (XANES) 光谱相关联，确定了薄膜的均质 delafossite 体结构。CuAlO2 和 CuFeO2 光电阴极在太阳能水分离方面都很活跃，而后者由于带隙更窄、光吸收能力更强而效率更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Pulsed laser deposition of delafossite oxide thin films on YSZ (001) substrates as solar water splitting photocathodes

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Pulsed laser deposition of delafossite oxide thin films on YSZ (001) substrates as solar water splitting photocathodes

Development of solar energy converters with earth-abundant and environmentally friendly materials is one of the key routes explored towards a sustainable future. In this work, crystalline delafossite-phase CuAlO₂ and CuFeO₂ thin film solar water splitting photocathodes were fabricated using pulsed laser deposition. It was found that the desired delafossite phase was formed only after high temperature annealing in an oxygen-free atmosphere. The homogeneous delafossite bulk structure of the films was determined by correlating simulation results from first-principles calculations with synchrotron-based X-ray absorption near edge structure (XANES) spectroscopy. Both CuAlO₂ and CuFeO₂ photocathodes are active for solar water splitting, with the latter more efficient due to its narrower band gap and improved light absorption.

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来源期刊

Environmental Science: Nano CHEMISTRY, MULTIDISCIPLINARY-ENVIRONMENTAL SCIENCES

CiteScore

12.20

自引率

5.50%

发文量

290

审稿时长

2.1 months

期刊介绍： Environmental Science: Nano serves as a comprehensive and high-impact peer-reviewed source of information on the design and demonstration of engineered nanomaterials for environment-based applications. It also covers the interactions between engineered, natural, and incidental nanomaterials with biological and environmental systems. This scope includes, but is not limited to, the following topic areas: Novel nanomaterial-based applications for water, air, soil, food, and energy sustainability Nanomaterial interactions with biological systems and nanotoxicology Environmental fate, reactivity, and transformations of nanoscale materials Nanoscale processes in the environment Sustainable nanotechnology including rational nanomaterial design, life cycle assessment, risk/benefit analysis