AI Article Synopsis
- Researchers are exploring one-dimensional transition metal dichalcogenides to improve solar energy efficiency beyond traditional limits.
- The study focuses on synthesizing single-crystalline WS ribbon arrays with specific shapes (chirality) and alignment (polarity) using an advanced manufacturing technique.
- A strong photovoltaic effect was observed in a ribbon configuration, and combining around 1000 aligned ribbons significantly increased the overall photocurrent output.
Article Abstract
One-dimensional transition metal dichalcogenides exhibiting an enhanced bulk photovoltaic effect have the potential to exceed the Shockley-Queisser limit efficiency in solar energy harvest within - junction architectures. However, the collective output of these prototype devices remains a challenge. We report on the synthesis of single-crystalline WS ribbon arrays with defined chirality and coherent polarity through an atomic manufacturing strategy. The chirality of WS ribbon was defined by substrate couplings into tunable armchair, zigzag, and chiral species, and the polarity direction was determined by the ribbon-precursor interfacial energy along a coherent direction. A single armchair ribbon showed strong bulk photovoltaic effect and the further integration of ~1000 aligned ribbons with coherent polarity enabled upscaling of the photocurrent.
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| http://dx.doi.org/10.1126/science.adn9476 | DOI Listing |
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