Wireless Solar Water Splitting Using Silicon-Based Semiconductors and Earth-Abundant Catalysts

被引：1425

作者：

Reece, Steven Y. ^{[1
]}

Hamel, Jonathan A. ^{[1
]}

Sung, Kimberly ^{[1
]}

Jarvi, Thomas D. ^{[1
]}

Esswein, Arthur J. ^{[1
]}

Pijpers, Joep J. H. ^{[2
,3
]}

Nocera, Daniel G. ^{[2
]}

机构：

[1] Sun Catalytix, Cambridge, MA 02139 USA

[2] MIT, Dept Chem, Cambridge, MA 02139 USA

[3] Fdn Fundamental Res Matter, Inst Atom & Mol Phys, NL-1098 XG Amsterdam, Netherlands

来源：

SCIENCE | 2011年 / 334卷 / 6056期

基金：

美国国家科学基金会;

关键词：

OXYGEN-EVOLVING CATALYST; HYDROGEN-PRODUCTION; PHOTOSYSTEM-II; PHOTOELECTROCHEMICAL DEVICE; CRYSTAL-STRUCTURE; TRIPLE STACK; OXIDATION; ENERGY; PHOTOANODES; PHOSPHATE;

D O I：

10.1126/science.1209816

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We describe the development of solar water-splitting cells comprising earth-abundant elements that operate in near-neutral pH conditions, both with and without connecting wires. The cells consist of a triple junction, amorphous silicon photovoltaic interfaced to hydrogen- and oxygen-evolving catalysts made from an alloy of earth-abundant metals and a cobalt|borate catalyst, respectively. The devices described here carry out the solar-driven water-splitting reaction at efficiencies of 4.7% for a wired configuration and 2.5% for a wireless configuration when illuminated with 1 sun (100 milliwatts per square centimeter) of air mass 1.5 simulated sunlight. Fuel-forming catalysts interfaced with light-harvesting semiconductors afford a pathway to direct solar-to-fuels conversion that captures many of the basic functional elements of a leaf.

引用

页码：645 / 648

页数：4

共 38 条

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