A hydrophobic polymer stabilized p-Cu2O nanocrystal photocathode for highly efficient solar water splitting
A hydrophobic polymer stabilized p-Cu2O nanocrystal photocathode for highly efficient solar water splitting
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用于高效太阳能水分解的疏水性聚合物稳定的 p-Cu2O 纳米晶体光电阴极
DOI：
10.1039/c9ta04822g
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发表时间：
2019-07-14
影响因子：
11.9
通讯作者：
Shao, Zongping
中科院分区：
文献类型：
--
作者：
Li, Yang;Zhong, Xiaolan;Shao, Zongping
第一次，由高分子聚合物组成的致密疏水层被应用于抑制氧化亚铜的失活。此外，50 nm厚的银溅射在FTO基板上作为反射层，以提高光子利用效率，而n-TiO 2形成半导体异质结，以有效地分离光生载流子。沉积Pt作为析氢催化剂后，最终得到的光电流密度为-5.5mA·cm ~（-2），6 h后光稳定性保持在98%，IPCE峰值在415 nm处达到68.3%。
For the first time, a compact hydrophobic layer composed of a macromolecular polymer was applied to inhibit the inactivation of cuprous oxide. In addition, 50 nm thick silver was sputtered on an FTO substrate as a reflective layer to enhance photon utilization efficiency, while n-TiO2 forms a semiconductor heterojunction to effectively separate photo-generated carriers. After depositing Pt as a hydrogen evolution catalyst, a photocurrent density of -5.5 mA cm(-2) was finally obtained, and retained 98% photo-stability after 6 hours, and the IPCE summit reached 68.3% at 415 nm.