“…As the electrode potential becomes more negative, the magnitude of the photocurrent responses increases, in agreement with the data shown in Figure 2 B. From a phenomenological point of view, the photocurrent decay and overshoot upon light interruption resemble the behavior observed for single‐crystal photoelectrodes in the presence of interfacial recombination 6a. 15 However, a closer examination of the photocurrent transient reveals that the magnitude of the photocurrent decay in the on‐transient is significantly larger than photoanodic responses in the off‐transient.…”
The photoelectrochemical properties of LaFeO3 nanoparticles are discussed for the first time. Highly phase‐pure LaFeO3 particles prepared by a novel ionic‐liquid‐based method are characterized by a (60±14) nm mean size and a band gap of (2.56±0.07) eV. Thin films deposited by screen printing exhibit photocurrent responses associated with hydrogen generation at potential up to 1 V more positive than the formal hydrogen potential. Analysis of the photocurrent responses as a function of photon flux and potential bias suggest that the hole‐collection efficiency at the back contact is in competition with interfacial water oxidation.
“…As the electrode potential becomes more negative, the magnitude of the photocurrent responses increases, in agreement with the data shown in Figure 2 B. From a phenomenological point of view, the photocurrent decay and overshoot upon light interruption resemble the behavior observed for single‐crystal photoelectrodes in the presence of interfacial recombination 6a. 15 However, a closer examination of the photocurrent transient reveals that the magnitude of the photocurrent decay in the on‐transient is significantly larger than photoanodic responses in the off‐transient.…”
The photoelectrochemical properties of LaFeO3 nanoparticles are discussed for the first time. Highly phase‐pure LaFeO3 particles prepared by a novel ionic‐liquid‐based method are characterized by a (60±14) nm mean size and a band gap of (2.56±0.07) eV. Thin films deposited by screen printing exhibit photocurrent responses associated with hydrogen generation at potential up to 1 V more positive than the formal hydrogen potential. Analysis of the photocurrent responses as a function of photon flux and potential bias suggest that the hole‐collection efficiency at the back contact is in competition with interfacial water oxidation.
“…In recent years, more scholars pay attention to the boundedness of the commutators [b,T] when T are the singular integral operators associated with the Schrödinger operator (cf. [1,[6][7][8][9][10][11]). When the potential V satisfies the weaker condition, the operator T may not be a Calderón-Zygmund operator.…”
In this paper, we show that for a function b in Lipschitz space Lip α (R n) with α ∈ (0,1), the commutator [b,V 1/2 A −1/2 ] is bounded from L p (R n) to L q (R n), where p,q ∈ (1,2] and 1/p−1/q = α/n.
“…In 2008, Guo-Li-Peng [7] introduced a condition H(m) and obtained that L p −boundedness of the commutator of Riesz transforms associated with L, where b ∈ BMO(R n ). For further information, we refer to Liu [11], Liu-Huang-Dong [12], Liu-Wang-Dong [13], Yang-Yang-Zhou [21] and the references therein.…”
In this paper we introduce a class of generalized Morrey spaces associated with the Schrödinger operator L = -+ V. Via a pointwise estimate, we obtain the boundedness of the operators V β 2 (-+ V)-β 1 and their dual operators on these Morrey spaces.
MSC: Primary 42B35; 42B20
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