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Photoelectrochemical study of zirconium dichalcogenides

机译:二卤化锆的光电化学研究

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Use of transition metal dichalcogenides (TMDCs) as a photoelectrode in photoelectrochemical (PEC) solar cell has significant importance towards renewable conversion of solar energy into electrical energy. In comparison with solid state solar cells, the fabrication of PEC device is cheaper and easy. The search for better materials in this field led us to investigate ZrS_xSe_(1-x). The n-type single crystals of ZrS_2, ZrSSe and ZrSe_2 have been grown by chemical vapour transport technique. Photoresponse measurements were carried out at different intensities of light source to illuminate the photoanode. The best photoelectrode was used to determine the capacitance formed at the solid-liquid interface with Hewlett Packard multi-frequency LCR meter. The energetic locations of the valence and conduction band edges as well as the doping levels and flat band potentials are determined.
机译:在光电化学(PEC)太阳能电池中使用过渡金属二卤化碳(TMDCs)作为光电极对将太阳能再生为电能具有重要意义。与固态太阳能电池相比,PEC器件的制造更便宜,更容易。在该领域中寻找更好的材料使我们研究了ZrS_xSe_(1-x)。 ZrS_2,ZrSSe和ZrSe_2的n型单晶已经通过化学气相传输技术生长。在不同的光源强度下进行光响应测量以照亮光电阳极。最好的光电电极用于确定在Hewlett Packard多频LCR测量仪的固液界面处形成的电容。确定价带和导带边缘的能量位置以及掺杂水平和平坦带电势。

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