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Flaky nano-crystalline SnSe2 thin films for photoelectrochemical current generation

机译:片状纳米SnSe2薄膜用于光电化学电流产生

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We report chemical vapor deposition (CVD) and photoelectrochemical properties of large-area thin films of nano-crystalline SnSe _(2) on conducting FTO glass. We show that densely packed, randomly oriented SnSe _(2) nanoflakes can be grown by reacting vapors of tin monoselenide (SnSe) and selenium at 550?°C without compromising the electrical properties of FTO. We demonstrate that SnSe _(2) /FTO is photoelectrochemically active in visible to near-UV wavelengths (350–700 nm) and exhibits incident-photon-to-current-efficiency (IPCE) as high as 3.7% at 0 V versus the Ag/AgCl/1 M KCl reference electrode under 350 nm light illumination.
机译:我们报告化学FTO玻璃上的纳米晶SnSe _(2)的大面积薄膜的化学气相沉积(CVD)和光电化学性质。我们表明,可以通过在550°C下使单硒化锡(SnSe)和硒的蒸气反应而生长密堆积,随机取向的SnSe _(2)纳米片,而不会损害FTO的电性能。我们证明,SnSe _(2)/ FTO在可见光至近紫外波长(350-700 nm)内具有光电化学活性,并且在0 V时与入射光相比,其入射光子电流效率(IPCE)高达3.7%。 Ag / AgCl / 1 M KCl参比电极在350 nm光照下。

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