General Considerations for Improving Photovoltage in Metal–Insulator–Semiconductor Photoanodes

General Considerations for Improving Photovoltage in Metal–Insulator–Semiconductor Photoanodes

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 analyze the effect of interfacial oxides and metal workf...

570 mV photovoltage , stabilized n - Si / CoO x heterojunction photoanodes fabricated using atomic layer deposition

Heterojunction photoanodes, consisting of n-type crystalline Si(100) substrates coated with a thinB50 nm film of cobalt oxide fabricated using atomic-layer deposition (ALD), exhibited photocurrent-onset potentials of 205 20 mV relative to the formal potential for the oxygen-evolution reaction (OER), ideal regenerative solar-to-O2(g) conversion efficiencies of 1.42 0.20%, and operated continuous...

Improving BiVO4 photoanodes for solar water splitting through surface passivation.

BiVO4 has shown great potential as a semiconductor photoanode for solar water splitting. Significant improvements made during recent years allowed researchers to obtain a photocurrent density of up to 4.0 mA cm(-2) (AM1.5 sunlight illumination, 1.23 VRHE bias). For further improvements of the BiVO4 photoelectrodes, a deep understanding of the processes occurring at the BiVO4-H2O interface is cr...

General Considerations

The significant prevalence of acute and chronic pain worldwide has great impact on socioeconomic life as well as it is a costly health issue in terms of lost productivity and income. Due to its impact on the society and economy worldwide, discovery and development of novel analgesics is the subject of extensive research in both academia and industry. Therefore, an urgent need was felt to study ...

Secure Urban Design in Terms of Passive Defense Approach; Analytical Considerations for Improving Form-based Characteristics in Iranian Cities