Reinforced Electric Field for All-Oxide-Based Transparent Photovoltaics by Gradient Doping Profiles

IF 6 3区工程技术 Q2 ENERGY & FUELS

Solar RRL Pub Date : 2024-11-21 DOI:10.1002/solr.202400657

Shuvaraj Ghosh, Malkeshkumar Patel, Min-Joon Park, Sung-Min Youn, Junghyun Lee, Chanhyuk Choi, Thanh Tai Nguyen, Chaewhan Jeong, Joondong Kim

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Abstract

The transparent photovoltaic (TPV) device offers onsite power production with greater freedom for integrated applications, in which doping strategy helps to boost device performance. This study explores the effects of gradient doping with titanium (Ti) in zinc oxide (ZnO) to enhance the TPV device performance. By implementing a negative slope in Ti concentration from the substrate to the surface (i.e., reverse-graded doping), a significant reduction is demonstrated in recombination processes due to the reinforcement in the built-in electrical field, resulting in an improved photovoltaic efficiency. Additionally, the devices exhibit an average visible transparency value of 68.4% across the 400–825 nm wavelength range, reaching a maximum power conversion efficiency value of 6.74% under 365 nm illumination. These findings underscore the potential of graded Ti-doping in ZnO to optimize TPV devices for applications in building-integrated photovoltaics and photo-communication, contributing to advancements in sustainable energy technologies.

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来源期刊

Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

12.10

自引率

6.30%

发文量

460

期刊介绍： Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.