Ardeshir Baktash

Oct 22, 2024 | nature.com | Zhiliang Wang |Ardeshir Baktash |Kai Wang |Haijiao Lu |Shujun Zhang |Gang Liu

AbstractA strong driving force for charge separation and transfer in semiconductors is essential for designing effective photoelectrodes for solar energy conversion. While defect engineering and polarization alignment can enhance this process, their potential interference within a photoelectrode remains unclear. Here we show that oxygen vacancies in bismuth vanadate (BiVO4) can create defect dipoles due to a disruption of symmetry.

Mar 26, 2024 | onlinelibrary.wiley.com | Mu Xiao |Nanotechnology The |Ardeshir Baktash |Miaoqiang Lyu

Introduction Hydrogen (H2) has been considered as one of the most promising renewable energy sources. However, hydrogen has the lowest density among all gases, which requires very high pressure (ca. 700 bar) for compression and extremely low temperature (−253 °C) for liquefaction.1 In addition, H2 also has a comparatively broad explosive range when mixed with air (4–75 %). Therefore, it is challenging to store and transport H2 safely and cost-effectively in large commercial quantities.

Jan 10, 2024 | onlinelibrary.wiley.com | Chengxi Zhang |Nanotechnology The |Ardeshir Baktash |Julian Steele

1 Introduction The emergence of organometal halide perovskite solar cells (PSCs) has defined a new era of ultra-cheap solar cell research, and achieved a certified power conversion efficiency (PCE) of 26.1% to date in single-junction devices.[1] The current design of state-of-the-art PSCs is fabricated with a 3D perovskite/2D perovskite stacking structure, in which the 2D perovskite capping layer can passivate trap defects at grain boundaries (GBs) of the 3D perovskite and form favorable band...

Jul 5, 2023 | onlinelibrary.wiley.com | Shiwei Tao |Baris Demir |Nanotechnology The |Ardeshir Baktash

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