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

Year: 2024
Type: article
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.
Source: Solar RRL
DOI: 10.1002/solr.202400657
Authors: Shuvaraj Ghosh, Malkeshkumar Patel, Min‐Joon Park, Sung‐Min Youn, Junghyun Lee, Chanhyuk Choi, Thanh Tai Nguyen, Chaewhan Jeong, Joondong Kim
Language: English
Open Access status: bronze
Funders: National Research Foundation, Ministry of Trade, Industry and Energy, Korea Institute of Industrial Technology, National Research Foundation of Korea, Ministry of Science and ICT, South Korea, Korea Institute of Energy Technology Evaluation and Planning
Awards: G2253922218, G2262425913, G3477228583, G5647072593, G7780541027, G898643168, G8986535659
OpenAlex ID: W4404621180
FWCI: 0.576
Cites: 63
Cited by: 6
Related to: 10