Front Cover: Binary copper oxide semiconductors: From materials towards devices (Phys. Status Solidi B 8/2012)

Meyer, B. K.; Polity, A.; Reppin, Daniel; Becker, Martin; Hering, P.; Klar, Peter J.; Sander, Thomas; Reindl, Christian T.; Benz, J.; Eickhoff, Martin; Heiliger, Christian; Heinemann, Markus; Bläsing, J.; Krost, A.; Shokovets, S.; Müller, Christian; Ronning, Carsten

doi:10.1002/pssb.201290019

Cited by 7 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The optical bandgaps estimated using Tauc relation of UV-Vis absorption data (Figs. S6 and S7) appear to be consistent with the literature, where values of 2.0 to 2.4 eV have been commonly reported [38]. We note that the bandgap seems to be narrowing with longer electrodeposition time.…”

Section: Basic Materials Characterisationsupporting

confidence: 91%

“…CuO is the most likely Cu 2+ species to form in the film which is intrinsically a p-type semiconductor. The narrow band gap of CuO (between 1.4 and 1.7 eV) aligns well with Cu 2 O, providing additional light adsorption while inducing charge separation [38,[71][72][73][74]. A higher amount of Cu 2+ in the thinner films can then be correlated to longer lived photogenerated electrons, akin to the effect seen in Cu 2 O/RuO x junction structure [5,75,76].…”

Section: Photoelectrochemical Performancementioning

confidence: 59%

See 1 more Smart Citation

Probing the electronic and geometric structures of photoactive electrodeposited Cu2O films by X-ray absorption spectroscopy

Yilmaz

Handoko

Parkin

et al. 2020

Journal of Catalysis

View full text Add to dashboard Cite

Cu 2 O is an attractive photocathode for important renewable energy reactions such as water splitting and CO 2 reduction. Electrodeposition is commonly used to deposit Cu 2 O films on conductive substrates due to its simplicity and consistency. However, structural descriptors, linking electrodeposition parameters, film structure and the catalytic properties are elusive. A variety of Cu 2 O films reported by many research groups would often display vastly different electronic properties and catalytic activity, while appear indistinguishable under common characterisation tools. In this work, we take a systematic look into electrochemically deposited Cu 2 O and investigate the impact of deposition parameters towards the bulk and surface chemistry of the deposited film. Specifically, we employ high resolution XANES for thorough quantitative analysis of the Cu 2 O films, alongside more common characterisation methods like XRD, SEM and Raman spectroscopy. Photoelectrochemical (PEC) studies reveal an unexpected trend, where the highest PEC activity appears to correlate with the amount of Cu 2+ content. Other factors which also affect the PEC activity and stability are film thickness and crystallite grain size. Our study shows that the use of high resolution XANES, though not perfect due to possible self-absorption issue, is apt for extracting compositional descriptor in concentrated thin film samples from the pre-edge energy position analysis. This descriptor can serve as a guide for future development of more active Cu 2 O based films for wide range of PEC processes as well as for solar cell applications.

show abstract

Section: Basic Materials Characterisationsupporting

confidence: 91%

Section: Photoelectrochemical Performancementioning

confidence: 59%

Probing the electronic and geometric structures of photoactive electrodeposited Cu2O films by X-ray absorption spectroscopy

Yilmaz

Handoko

Parkin

et al. 2020

Journal of Catalysis

View full text Add to dashboard Cite

show abstract

“…New technological advances are required to achieve the necessary growth, particularly in the areas of photovoltaics (PV) and thermoelectrics. Beyond silicon, material classes such as cadmium telluride, gallium arsenide, copper indium diselenide, perovskites, nitrides, oxides, and organic materials have been commonly studied for solar energy conversion [2][3][4][5][6][7][8][9]. Previously studied material classes for thermoelectric (TE) applications include binary chalcogenides such as Bi2Te3, lead telluride, inorganic clathrates including both AxByC46y (type I) and AxByC136-y (type II), and oxides [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Electronic, optical, and thermoelectric properties of sodium pnictogen chalcogenides: A first principles study

Khare¹,

Szymanski²,

Gall³

et al. 2020

Computational Materials Science

View full text Add to dashboard Cite

“…Additionally, PANI is known to have comprehensive tunable properties originating from its structural flexibility which ultimately leads to many applications in the fields of anti-corrosive coatings, energy storage systems and gas sensing [21] . Conversely, copper oxide, a P-type semiconductor, is of particular interest in various applications including catalysis [22] , semiconductors [23] gas sensors [24] , biosensors [25] , and field transistors [26] due to narrow band gap (1.2eV), high specific surface area, good thermal conductivity, good electrochemical activity, antibiotic properties and photovoltaic properties [27] . The presence of CuO nanoparticles as impurities in carbon nanotubes based electrodes has been confirmed to be responsible for the electroxidation of glucose [28] .…”

Section: Introductionmentioning

confidence: 99%

In situ Synthesis of PANI/CuO Nanocomposites for Non-Enzymatic Electrochemical Glucose Sensing

Rahman

Rahman²,

Najaf³

2018

ACE

View full text Add to dashboard Cite

We report the in situ synthesis of polyaniline/copper oxide (PANI/CuO) nanocomposites and their characterization as electrocatalyst for non-enzymatic electrochemical glucose detection. Copper oxide (CuO) nanoparticles were prepared by wet chemical precipitation method followed by thermal treatment while the composites of PANI and CuO were synthesized by in situ chemical polymerization of aniline with definite amount of CuO. X-ray diffraction (XRD) results revealed that the composites are predominantly amorphous. The composite formation was confirmed by fourier transform infrared (FTIR) and UV-Vis spectroscopy analysis. The surface morphology was greatly altered with the amount of CuO in composite structure. PANI/CuO nanocomposites were coated on copper substrate to investigate their electrocatalytic activity for glucose sensing. PANI/CuO with 10 wt. % CuO exhibited good response towards electrochemical glucose oxidation.

show abstract

Front Cover: Binary copper oxide semiconductors: From materials towards devices (Phys. Status Solidi B 8/2012)

Cited by 7 publications

References 0 publications

Probing the electronic and geometric structures of photoactive electrodeposited Cu2O films by X-ray absorption spectroscopy

Probing the electronic and geometric structures of photoactive electrodeposited Cu2O films by X-ray absorption spectroscopy

Electronic, optical, and thermoelectric properties of sodium pnictogen chalcogenides: A first principles study

In situ Synthesis of PANI/CuO Nanocomposites for Non-Enzymatic Electrochemical Glucose Sensing

Contact Info

Product

Resources

About