Direct measurement of surface photovoltage by AC bias Kelvin probe force microscopy [PDF]
Beilstein Journal of Nanotechnology, 2022 Surface photovoltage (SPV) measurements are a crucial way of investigating optoelectronic and photocatalytic semiconductors. The local SPV is generally measured consecutively by Kelvin probe force microscopy (KPFM) in darkness and under illumination, in ...
Masato Miyazaki +2 more
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Surface Photovoltage Response of ZnO to Phosphate-Buffered Saline Solution with and without Presence of Staphylococcus aureus [PDF]
Nanomaterials, 2023 Nano- and microscale zinc oxide (ZnO) exhibits significant potential as a novel antibacterial agent in biomedical applications. However, the uncertainty regarding the underlying mechanisms of the observed antimicrobial action inhibits the realization of ...
Dustin A. Johnson +5 more
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Frequency-Dependent Sonochemical Processing of Silicon Surfaces in Tetrahydrofuran Studied by Surface Photovoltage Transients [PDF]
Molecules, 2021 The field of chemical and physical transformations induced by ultrasonic waves has shown steady progress during the past decades. There is a solid core of established results and some topics that are not thoroughly developed.
Artem Podolian +3 more
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Transient surface photovoltage spectroscopy of diamond
AIP Advances, 2022 Contactless and highly sensitive probing of electronic transitions in diamond over a wide spectral range from near infrared to deep ultraviolet is still challenging.
Th. Dittrich
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A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device [PDF]
Sensors, 2018 In this paper a novel type of a highly sensitive gas sensor device based on the surface photovoltage effect is described. It is based on the Kelvin probe approach.
Monika Kwoka +4 more
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Interfacial Charge Transfer Enhances Transient Surface Photovoltage in Hybrid Heterojunctions [PDF]
NanomaterialsThe interfacial energy level alignment in the copper phthalocyanine/SiO2/p-Si(100) heterojunction has been studied in dark conditions and under illumination. The element-sensitivity of the time-resolved X-ray photoemission provides a real-time picture of
Cristian Soncini +4 more
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Designing a Robust Kelvin Probe Setup Optimized for Long-Term Surface Photovoltage Acquisition [PDF]
Sensors, 2018 We introduce a robust low-budget Kelvin probe design that is optimized for the long-term acquisition of surface photovoltage (SPV) data, especially developed for highly resistive systems, which exhibit—in contrast to conventional semiconductors ...
Elke Beyreuther +2 more
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Plasmon-Enhanced Surface Photovoltage of ZnO/Ag Nanogratings. [PDF]
Sci Rep, 2015 AbstractWe investigated the surface photovoltage (SPV) behaviors of ZnO/Ag one-dimensional (1D) nanogratings using Kelvin probe force microscopy (KPFM). The grating structure could couple surface plasmon polaritons (SPPs) with photons, giving rise to strong light confinement at the ZnO/Ag interface. The larger field produced more photo-excited carriers
Gwon M +6 more
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Dipolar modulation of surface states in GaN via molecular ionization energy [PDF]
Scientific ReportsGallium nitride (GaN) surface states play a pivotal role in determining device performance and stability. Here, we show that adsorption of molecules with varying ionization energies modulates GaN surface states, as revealed by surface photovoltage and X ...
Or Haim Chaulker +4 more
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The Mg related GaN blue luminescence deep level and its connection to an MgO surface state [PDF]
Scientific ReportsGaN is taking over from silicon in power electronics, but its density of interface states has yet to be adequately controlled. The major step turning GaN into a technological semiconductor was its p-type doping.
Or H. Chaulker +2 more
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