Periodically Ordered Nanoporous Perovskite Photoelectrode for Efficient Photoelectrochemical Water Splitting,ACS Nano

当前位置： X-MOL 学术 › ACS Nano › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Periodically Ordered Nanoporous Perovskite Photoelectrode for Efficient Photoelectrochemical Water Splitting
ACS Nano ( IF 15.8 ) Pub Date : 2018-06-13 00:00:00 , DOI: 10.1021/acsnano.8b03940
Li Shi ₁ , Wei Zhou ₂ , Zhao Li _{1,

3} , Supriya Koul ₃ , Akihiro Kushima ₃ , Yang Yang _{1,

3}

Affiliation

Nonmetallic materials with localized surface plasmon resonance (LSPR) have a great potential for solar energy harvesting applications. Exploring nonmetallic plasmonic materials is desirable yet challenging. Herein, an efficient nonmetallic plasmonic perovskite photoelectrode, namely, SrTiO₃, with a periodically ordered nanoporous structure showing an intense LSPR in the visible light region is reported. The [email protected] structure of the SrTiO₃ photoelectrode enables a strong LSPR due to the high charge carrier density induced by oxygen vacancies in the amorphous shell. The reversible tunability in LSPR of the SrTiO₃ photoelectrode was observed by oxidation/reduction treatment and incident angle adjusting. Such a nonmetallic plasmonic SrTiO₃ photoelectrode displays a dramatic plasmon-enhanced photoelectrochemical water splitting performance with a photocurrent density of 170.0 μA cm^–2 under visible light illumination and a maximum incident photon-to-current-conversion efficiency of 4.0% in the visible light region, which are comparable to the state-of-the-art plasmonic noble metal sensitized photoelectrodes.

中文翻译：

周期性订购的纳米孔钙钛矿光电极，用于高效光电化学水分解

具有局部表面等离子体共振（LSPR）的非金属材料在太阳能收集应用中具有巨大的潜力。探索非金属等离子体材料是理想的，但是具有挑战性。在本文中，报道了一种有效的非金属等离子体钙钛矿光电极，即具有周期性有序的纳米孔结构的SrTiO ₃，其在可见光区域中显示出强烈的LSPR。由于无定形壳中氧空位引起的高电荷载流子密度，SrTiO ₃光电极的[电子邮件保护]结构可实现强LSPR。通过氧化/还原处理和入射角调节，观察到了SrTiO ₃光电极的LSPR的可逆可调性。这样的非金属等离子体SrTiO ₃光电极显示出显着的等离子体增强光电化学水分解性能，在可见光照射下的光电流密度为170.0μAcm ^–2，在可见光区域的最大入射光子至电流转换效率为4.0％，与最先进的等离激元贵金属敏化光电极。

更新日期：2018-06-13

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11