Effect of the electrode materials on the resistive switching of Ti4O7 Appl. Phys. Lett. 101, 053502 (2012) Bipolar resistive switching characteristics of Al-doped zinc tin oxide for nonvolatile memory applications Appl. Phys. Lett. 101, 052901 (2012) Orbital symmetry induced conductance switching in a graphene nanoribbon heterojunction with different edge hydrogenations Appl. Phys. Lett. 101, 053101 (2012) Strongly coupled phase transition in ferroelectric/correlated electron oxide heterostructures Appl. Phys. Lett. 101, 042902 (2012) Electrical transition of (3,3) carbon nanotube on patterned hydrogen terminated Si(001)-2×1 driven by electric field

Solar energy conversion to carbon monoxide (CO) is carried out using a wired photovoltaic photoelectrochemical (PV PEC) system under simulated solar light irradiation. The PV PEC system promotes CO generation from carbon dioxide and water with approximately 2.0% solar-to-CO conversion efficiency (h CO ) for 2 h. This is achieved via contributions from electrolyte conditions, which generate a sustainable liquid junction potential, in addition to the combination of efficient visible light absorption by a triple-junction amorphous silicon PV cell with high electrode activities with low overpotentials. Estimations of energy conversion efficiency based on the electrochemical properties of the PV cell and electrodes exhibit that the liquid junction potential makes a huge contribution to h CO .Moreover, the liquid junction potential created by bubbling two kinds of carrier gases produces sustainable chemical bias. This system may contribute to new strategies for the development of sustainable artificial photosynthesis.

An ultrahigh vacuum three-axis cryogenic sample manipulator suitable for angle-resolved photoelectron spectroscopy experiments was developed. The sample manipulator is constructed by combining three modules with translation, polar rotation, and azimuthal-tilt rotation capabilities. Polar rotation and the azimuthal-tilt rotation are performed using a differentially pumped rotary stage and a sample goniometer, respectively. Continuous 360° rotation around the polar axis is possible. The sample goniometer is capable of azimuthal rotation of up to ±180° and tilt rotation from +95° to −5°, measured from the plane normal to the polar axis. Nonmagnetic materials are used near the sample holder of the goniometer. The sample holder can be cooled using a continuous-flow cryostat. To serve as a radiation shield, the lower portion of the goniometer surrounding the sample holder is cooled separately by another cell filled with liquid nitrogen. With liquid nitrogen or liquid helium for the cryostat, the sample holder can be cooled down to 90 or 12.5 K, respectively.

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