Study of the Schottky barrier and determination of the energetic positions of band edges at the n- and p-type gallium indium phosphide electrode | electrolyte interface

Kocha, Shyam S.; Turner, John A.; Nozik, Arthur J.

doi:10.1016/0022-0728(93)03020-p

Cited by 43 publications

(34 citation statements)

References 14 publications

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“…If the oxygen vacancies are produced during annealing in nitrogen or hydrogen atmosphere, the charge carrier density would increase. The charge carrier density can be calculated from the slope of the linear portion of the Mott-Schottky plots [25,26]. The plots in Fig.…”

Section: Resultsmentioning

confidence: 99%

Photo-electrochemical hydrogen generation using band-gap modified nanotubular titanium oxide in solar light

Raja

Misra

Mahajan

et al. 2006

Journal of Power Sources

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Section: Resultsmentioning

confidence: 99%

Photo-electrochemical hydrogen generation using band-gap modified nanotubular titanium oxide in solar light

Raja

Misra

Mahajan

et al. 2006

Journal of Power Sources

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“…The energy required for spontaneous water splitting could also be provided by a PEC cell consisting of a semiconductor photoanode and a semiconductor photocathode [48,[119][120][121]. Nozik and coworkers have demonstrated this idea in 1994 by combining a single-crystal n-TiO 2 photoanode and a p-GaP photocathode through ohmic contacts [119].…”

Section: Direct Water Splittingmentioning

confidence: 99%

“…Nozik and coworkers have demonstrated this idea in 1994 by combining a single-crystal n-TiO 2 photoanode and a p-GaP photocathode through ohmic contacts [119]. The CB of the p-type photocathode must be above the H 2 /H 2 O potential and the VB of the n-type photoanode must be below the H 2 O/O 2 potential.…”

Section: Direct Water Splittingmentioning

confidence: 99%

“…The combination of two semiconductors relaxes the criteria of the energetic overlap for photoelectrodes, which increases the number of semiconductors that could be applied toward water splitting [119,120]. Recently, Wang et al reported the direct water splitting under visible light with nanostructured n-type hematite or WO 3 as photoanode and a p-type GaInP 2 film as photocathode (Fig.…”

Section: Direct Water Splittingmentioning

confidence: 99%

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Hydrogen generation from photoelectrochemical water splitting based on nanomaterials

Li¹,

Zhang²

2010

Laser & Photonics Reviews

280

208

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Hydrogen is potentially one of the most attractive and environmentally friendly fuels for energy applications. Safe and efficient generation, storage, and utilization of hydrogen present major challenges in its widespread use. Hydrogen generation from water splitting represents a holy grail in energy science and technology, as water is the most abundant hydrogen source on the Earth. Among different methods, hydrogen generation from photoelectrochemical (PEC) water splitting using semiconductors as photoelectrodes is one of the most scalable and cost-effective approaches. Compared to bulk materials, nanostructured semiconductors offer potential advantages in PEC application due to their large surface area and size-dependent properties, such as increased absorption coefficient, increased band-gap energy, and reduced carrier-scattering rate. This article provides a brief overview of some recent research activities in the area of hydrogen generation from PEC water splitting based on nanostructured semiconductor materials, with a particular emphasis on metal oxides. Both scientific and technical issues are critically analyzed and reviewed.SEM image of ZnO nanowire array on ITO substrate (left) and linear sweep voltammograms from undoped ZnO nanowires in the dark, undoped ZnO nanowires and N-doped ZnO nanowires at 100 mW/cm 2 .

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“…p-type GaInP 2 with a band gap in the ideal range (1.8 to 1.9 eV) can serve as a photocathode, although the energetics of its band edges are not well aligned with water redox potential levels and requires an additional 300 mV voltage bias for water splitting 73 .…”

Section: Iii-v Group Materialsmentioning

confidence: 99%

Recent progress in photocathodes for hydrogen evolution

2015

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Solar water splitting, which has been a topic of intensive research interest for several decades, is one of the promising approaches to utilize renewable energy to maintain the sustainable prosperity of our society. However, up to now no mature photoelectrochemical cell can be used in practical large-scale applications because of the difficulties to satisfy all the harsh requirements, including high energy conversion efficiency, high stability and low cost. This feature article reviews the recent progress in developing photocathodes in photoelectrochemical cell for solar hydrogen production. Both the developments of the p-type semiconductor light absorbers and the efforts to develop synergistic approaches to improve the overall performance of the photocathode are discussed.

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Study of the Schottky barrier and determination of the energetic positions of band edges at the n- and p-type gallium indium phosphide electrode | electrolyte interface

Cited by 43 publications

References 14 publications

Photo-electrochemical hydrogen generation using band-gap modified nanotubular titanium oxide in solar light

Photo-electrochemical hydrogen generation using band-gap modified nanotubular titanium oxide in solar light

Hydrogen generation from photoelectrochemical water splitting based on nanomaterials

Recent progress in photocathodes for hydrogen evolution

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