Ultraviolet fast-response photoelectric effect in tilted orientation SrTiO3 single crystals

Zhao, Kun; Jin, Kuijuan; Huang, Yanhong; Zhao, Suoqi; Lu, Haitao; He, Meng; Chen, Zhenghao; Zhou, Yueliang; Gao, Yang

doi:10.1063/1.2367658

Cited by 65 publications

(56 citation statements)

References 17 publications

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“…The thermoelectric field leads to the separation of photogenerate carriers in the lateral direction and results the photovoltage we observed. Figure 2 shows the peak photovoltage V P L and peak photocurrent magnitude I P L dependence of the STO tilting angle α [20]. The experimental procedures are the same as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we describe the recent advances and the future prospects of ultrafast photoelectric effects and high-sensitive photovoltages in the perovskite oxides and heterojunctions. Figure 1 shows a typical photovoltage pulse when a tilted 15 • SrTiO 3 (STO) single crystal is irradiated by a 355-nm pulsed laser with 25-ps duration at ambient temperature [20]. The inset of Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Optical characteristic, as one of the most important properties in perovskite oxides, has been intensively investigated and made a great progress in recent years. The ultrafast photoelectric effects in perovskite oxide single crystals [20][21][22][23], thin films [24] and heterojunctions [25][26][27][28][29], the highsensitive photovoltaic effects in the heterojunctions [30][31][32][33], the transient lateral photovoltage (LPV) induced by Dember effect in p-n heterojunctions [34], and ultraviolet (UV) high-sensitive photodetectors [22,23,35,36] have been reported. In this paper, we describe the recent advances and the future prospects of ultrafast photoelectric effects and high-sensitive photovoltages in the perovskite oxides and heterojunctions.…”

Section: Introductionmentioning

confidence: 99%

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Ultrafast photoelectric effects and high-sensitive photovoltages in perovskite oxides and heterojunctions

et al. 2010

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Perovskite oxides and heterojunctions have attracted much attention due to their multifunctional properties of electricity and optics and magnetic as well as the very good chemical and thermal stability. In this brief review, we describe the novel progress of researches in the optical characteristic, including ultrafast photoelectric effects of picosecond order in perovskite oxide single crystals, thin-films and heterojunctions, high-sensitive photovoltages, the enhanced transient lateral photovoltages in perovskite oxide thin-films and heterojunctions, and the high-sensitive ultraviolet (UV) photodetectors based on perovskite oxides. The recent advances present in this paper not only could stimulate theoretical studies on the mechanism but also would open up the possibilities in the developments of optoelectronic devices based on perovskite oxides and heterojunctions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ultrafast photoelectric effects and high-sensitive photovoltages in perovskite oxides and heterojunctions

et al. 2010

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“…In the past few years, we have investigated the photoelectric effects under laser pulses in a variety of oxide heterostructures Zhao et al, 2005;Zhao et al, 2006a;Zhao et al, 2006b;Zhao et al, 2006c;Huang et al, 2006;Wen et al, 2009). It was found that the photoelectrical process is in a picosecond or nanosecond order in the oxide heterostructures, which opens up a door for the applications of oxide heterostructures in the optoelectronic detection devices.…”

Section: Transient Photoelectric Effectsmentioning

confidence: 99%

Laser Pulses Applications in Photovoltaic Effect

Jin¹,

Chen²,

Lü³

et al. 2011

Femtosecond-Scale Optics

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“…Strontium titanate (SrTiO 3 ), as an important perovskite conductor, has many potential applications in various microelectronic heterostructures [30], oxygen sensors [31], solar cells [32], and thermoelectric devices [33], due to its excellent dielectric, photoelectric, optical and catalytic properties. Moreover, SrTiO 3 with a band gap similar to that of titania, is also a very promising photocatalyst because of its superior photocorrosion resistibility, thermal stability, and easily doping to control the electrical properties [34][35][36][37].…”

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confidence: 99%

Synthesis and photocatalytic activity of hierarchical flower-like SrTiO3 nanostructure

et al. 2015

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A h ierarchical flower-like SrTiO3 nanostructure was synthesized by a simple and direct hydrothermal method. The products were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Structure characterizations suggest that the as-synthesized SrTiO3 crystal has eight symmetric branches growing along the 111 direction and each branch has many ordered small laminae, forming a well-defined flower-like structure. By adjusting the pH value of the reaction system, the morphology could be changed continuously from flower-like structure to cube, then to sphere. The hierarchical flower-like SrTiO3 nanostructure exhibits a higher photocatalytic activity for degrading Rhodamine B than its cubic and spherical counterparts.In recent years, nanostructured materials have attracted considerable interest because of their unique physical and chemical properties as well as potential applications in various electronic devices [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. It is well-known that the morphology and microstructure of the inorganic materials strongly influence their properties, such as isotropic or anisotropic behavior and region-dependent surface reactivity [4,18]. Therefore, great effort has been devoted to synthesizing various inorganic materials with controlled shapes and complex assembled architectures, which are expected to offer superior properties for many applications in optics [15,19] properties. Moreover, SrTiO 3 with a band gap similar to that of titania, is also a very promising photocatalyst because of its superior photocorrosion resistibility, thermal stability, and easily doping to control the electrical properties [34][35][36][37]. Conventional solid-state reaction method for SrTiO 3 typically requires high reaction temperature above 900°C and usually results in the agglomeration of the particles with different sizes and impurity derived from incomplete reaction [38]. Recently, hydrothermal methods have attracted much attention due to high purity of their products and various SrTiO 3 nanostructured materials have been synthesized, such as nanocubes [38] Herein, we report a flower-like SrTiO 3 nanostructure with eight symmetric branches growing along the 111 direction. The shapes of SrTiO 3 crystals evolved from flower-like structure to cube, then to sphere by adjusting the pH value of the reaction system. Photocatalytic measurement for degrading Rhodamine B showed the high activity of the flower-like SrTiO 3 nanostructure, superior over its cubic and spherical counterparts. Fig. 1 shows the X-ray diffraction (XRD) pattern of the

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Ultraviolet fast-response photoelectric effect in tilted orientation SrTiO3 single crystals

Cited by 65 publications

References 17 publications

Ultrafast photoelectric effects and high-sensitive photovoltages in perovskite oxides and heterojunctions

Ultrafast photoelectric effects and high-sensitive photovoltages in perovskite oxides and heterojunctions

Laser Pulses Applications in Photovoltaic Effect

Synthesis and photocatalytic activity of hierarchical flower-like SrTiO3 nanostructure

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