Searched for: author:"Digdaya, I.A."
(1 - 7 of 7)
document
Digdaya, I.A. (author)
The global transition from fossil-based resources to renewable energy is critically important to address the sharply increasing threat of global climate change and to ensure long-term energy security. One attractive candidate to substitute for conventional fossil fuels is hydrogen. Hydrogen is an excellent energy carrier that can be directly...
doctoral thesis 2018
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Digdaya, I.A. (author), Trzesniewski, B.J. (author), Adhyaksa, Gede W.P. (author), Garnett, E.C. (author), Smith, W.A. (author)
Metal-insulator-semiconductor (MIS) photoelectrodes offer a simple alternative to the traditional semiconductor-liquid junction and the conventional p-n junction electrode. Highly efficient MIS photoanodes require interfacial surface passivating oxides and high workfunction metals to produce a high photovoltage. Herein, we investigate and...
journal article 2018
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Perez Rodriguez, P. (author), Cardenas-Morcoso, Drialys (author), Digdaya, I.A. (author), Mangel Raventos, A. (author), Procel Moya, P.A. (author), Isabella, O. (author), Gimenez, Sixto (author), Zeman, M. (author), Smith, W.A. (author), Smets, A.H.M. (author)
Amorphous silicon carbide (a-SiC:H) is a promising material for photoelectrochemical water splitting owing to its relatively small band-gap energy and high chemical and optoelectrical stability. This work studies the interplay between charge-carrier separation and collection, and their injection into the electrolyte, when modifying the...
journal article 2018
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Digdaya, I.A. (author), Adhyaksa, Gede W.P. (author), Trzesniewski, B.J. (author), Garnett, Erik C. (author), Smith, W.A. (author)
Solar-assisted water splitting can potentially provide an efficient route for large-scale renewable energy conversion and storage. It is essential for such a system to provide a sufficiently high photocurrent and photovoltage to drive the water oxidation reaction. Here we demonstrate a photoanode that is capable of achieving a high...
journal article 2017
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Trzesniewski, B.J. (author), Digdaya, I.A. (author), Nagaki, T. (author), Ravishankar, Sandheep (author), Herraiz-Cardona, Isaac (author), Vermaas, D.A. (author), Longo, Alessandro (author), Gimenez, Sixto (author), Smith, W.A. (author)
photoanodes immersed in an electrolyte in an open circuit configuration and exposed to simulated solar illumination for prolonged time achieve superior photoelectrochemical (PEC) activity. This...
journal article 2017
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Perez Rodriguez, P. (author), Digdaya, I.A. (author), Mangel Raventos, A. (author), Falkenberg, M. (author), Vasudevan, R.A. (author), Zeman, M. (author), Smith, W.A. (author), Smets, A.H.M. (author)
One of the main problems of renewable energies is storage of the energy carrier. For long-term storage, solar fuels seem to be a good option. Direct solar water splitting could play an important role in the production of these solar fuels. One of the main challenges of this process is the charge separation and collection at the interfaces. The...
conference paper 2016
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Vasudevan, R.A. (author), Thanawala, Zaid (author), Han, L. (author), Tan, H. (author), Buijs, Thom (author), Deligiannis, D. (author), Perez Rodriguez, P. (author), Digdaya, I.A. (author), Smith, W.A. (author), Zeman, M. (author), Smets, A.H.M. (author)
A hybrid tandem solar cell consisting of a thin-film, nanocrystalline silicon top junction and a siliconheterojunction bottom junction is proposed as a supporting solar cell for photoelectrochemical applications.Tunneling recombination junction engineering is shown to be an important consideration indesigning this type of solar cell. The best...
journal article 2016
Searched for: author:"Digdaya, I.A."
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