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Artificial photosynthesis device gets better with use

The way a water-splitting device gets more efficient over time could help make artificial photosynthesis a practical method for making hydrogen fuel. ....

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Si/GaN Device can Help Accelerate Commercialization of Hydrogen Fuel Cells

Si/GaN Device can Help Accelerate Commercialization of Hydrogen Fuel Cells
About three years ago,
researchers from the University of Michigan had identified a new artificial photosynthesis device composed of silicon and gallium nitride (Si/GaN).
Guosong Zeng, a postdoctoral scholar in Berkeley Lab’s Chemical Sciences Division, at work testing an artificial photosynthesis device made of gallium nitride. Zeng, along with Berkeley Lab staff scientist Francesca Toma, discovered that the device improves with use. Image Credit: Thor Swift/Lawrence Berkeley National Laboratory.
This device uses solar light to produce carbon-free hydrogen for fuel cells with double the stability and efficiency of some former technologies. ....

United States , Lawrence Livermore National Laboratory , Zetian Mi , Guosong Zeng , Srinivas Vanka , Jason Cooper , Tuan Anh Pham , Tadashi Ogitsu , Adam Weber , Guiji Liu , Francesca Toma , Thor Swift Lawrence Berkeley National Laboratory , A Team Science Approach To Solar Fuels , Cell Technologies Office , National Lab Team Science , Energy Materials Network , University Of Michigan , Renewable Energy , Office Of Science , National Renewable Energy Laboratory , Office Of Energy Efficiency , Berkeley Lab Chemical Sciences Division , National Center , National Labs , Hydrogen Advanced Water Splitting Materials Consortium , Electron Microscopy In Berkeley Lab Molecular Foundry ,

Artificial photosynthesis devices that improve themselves with use

Artificial photosynthesis devices that improve themselves with use
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United States , Lawrence Livermore National Laboratory , Jason Cooper , Zetian Mi , Guosong Zeng , Srinivas Vanka , Tadashi Ogitsu , Francesca Toma , Guiji Liu , Berkeley Lab Chemical Sciences Division , National Center , Chengyu Song At Berkeley Lab , Hydrogen Advanced Water Splitting Materials Consortium , Energy Materials Network , Lawrence Berkeley National Laboratory , Electron Microscopy In Berkeley Lab Molecular Foundry , University Of Michigan , Renewable Energy , Office Of Science , Berkeley Lab , Department Of Energy Office Efficiency , Chemical Sciences Division , Lawrence Livermore National , Tuan Anh Pham , Chengyu Song , Water Splitting Materials Consortium ,

This hydrogen fuel machine could be the ultimate guide to self-improvement

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IMAGE: Guosong Zeng, a postdoctoral scholar in Berkeley Lab s Chemical Sciences Division, at work testing an artificial photosynthesis device made of gallium nitride. Zeng, along with Berkeley Lab staff scientist Francesca.
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Credit: Thor Swift/Berkeley Lab
Three years ago, scientists at the University of Michigan discovered an artificial photosynthesis device made of silicon and gallium nitride (Si/GaN) that harnesses sunlight into carbon-free hydrogen for fuel cells with twice the efficiency and stability of some previous technologies.
Now, scientists at the Department of Energy s (DOE s) Lawrence Berkeley National Laboratory (Berkeley Lab) - in collaboration with the University of Michigan and Lawrence Livermore National Laboratory (LLNL) - have uncovered a surprising, self-improving property in Si/GaN that contributes to the material s highly efficient and stable performance in converting light and water into carbon-free hydrogen ....

United States , Lawrence Livermore National Laboratory , Zetian Mi , Guosong Zeng , Srinivas Vanka , Jason Cooper , Tuan Anh Pham , Tadashi Ogitsu , Adam Weber , Guiji Liu , Francesca Toma , University Of California , Chengyu Song At Berkeley Lab , Cell Technologies Office , National Lab Team Science , Energy Materials Network , University Of Michigan , Berkeley Lab Hydrogen , Renewable Energy , Office Of Science , National Renewable Energy Laboratory , Office Of Energy Efficiency , Berkeley Lab Chemical Sciences Division , Department Of Energy , National Center , National Labs ,

Artificial photosynthesis devices that improve themselves with use

Guosong Zeng, a postdoctoral scholar, and Francesca Toma, a staff scientist, both in the Chemical Sciences Division of Lawrence Berkeley National Laboratory, test the artificial photosynthesis device developed by Zetian Mi, a professor of electrical and computer engineering at the University of Michigan. Rather than degrading over time, as is typical for devices that turn water and light into hydrogen fuel, this device improves. Image credit: Berkeley Lab
In a finding that could help make artificial photosynthesis a practical method for producing hydrogen fuel, researchers have discovered why a water-splitting device made with cheap and abundant materials unexpectedly becomes more efficient during use. ....

United States , Lawrence Livermore National Laboratory , Jason Cooper , Zetian Mi , Guosong Zeng , Srinivas Vanka , Tadashi Ogitsu , Francesca Toma , Guiji Liu , Berkeley Lab Chemical Sciences Division , National Center , Chengyu Song At Berkeley Lab , Hydrogen Advanced Water Splitting Materials Consortium , Energy Materials Network , Lawrence Berkeley National Laboratory , Electron Microscopy In Berkeley Lab Molecular Foundry , University Of Michigan , Renewable Energy , Office Of Science , Berkeley Lab , Department Of Energy Office Efficiency , Chemical Sciences Division , Lawrence Livermore National , Tuan Anh Pham , Chengyu Song , Water Splitting Materials Consortium ,