Comparing Photosynthetic and Photovoltaic Efficiencies and Recognizing the Potential for Improvement

被引：1356

作者：

Blankenship, Robert E. ^{[1
,2
]}

Tiede, David M. ^{[3
]}

Barber, James ^{[4
,5
]}

Brudvig, Gary W. ^{[6
]}

Fleming, Graham ^{[7
,8
]}

Ghirardi, Maria ^{[9
]}

Gunner, M. R. ^{[10
]}

Junge, Wolfgang ^{[11
]}

Kramer, David M. ^{[12
]}

Melis, Anastasios ^{[13
]}

Moore, Thomas A. ^{[14
]}

Moser, Christopher C. ^{[15
]}

Nocera, Daniel G. ^{[16
]}

Nozik, Arthur J. ^{[17
]}

Ort, Donald R. ^{[18
]}

Parson, William W. ^{[19
]}

Prince, Roger C. ^{[20
]}

Sayre, Richard T. ^{[21
]}

机构：

[1] Washington Univ, Dept Biol, St Louis, MO 63130 USA

[2] Washington Univ, Dept Chem, St Louis, MO 63130 USA

[3] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

[4] Univ London Imperial Coll Sci Technol & Med, Div Mol Biosci, London SW7 2AZ, England

[5] Politecn Torino, Dept Mat Sci & Engn, I-10129 Turin, Italy

[6] Yale Univ, Dept Chem, New Haven, CT 06520 USA

[7] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[8] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA

[9] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA

[10] CUNY, Dept Phys, New York, NY 10031 USA

[11] Univ Osnabruck, Div Biophys, D-49069 Osnabruck, Germany

[12] Michigan State Univ, Biochem & Mol Biol & DOE Plant Res Lab, E Lansing, MI 48824 USA

[13] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA

[14] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA

[15] Univ Penn, Dept Biochem & Biophys, Philadelphia, PA 19104 USA

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

[17] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

[18] Univ Illinois, USDA, ARS, Photosynth Res Unit, Urbana, IL 61801 USA

[19] Univ Washington, Dept Biochem, Seattle, WA 98195 USA

[20] ExxonMobil Biomed Sci, Annandale, NJ 08801 USA

[21] Donald Danforth Plant Sci Ctr, St Louis, MO 63132 USA

来源：

SCIENCE | 2011年 / 332卷 / 6031期

关键词：

CO2 CONCENTRATING MECHANISMS; SOLAR-ENERGY; QUANTUM YIELD; CARBON; CONVERSION; CYCLE; HYDROGENASES; MICROALGAE; RUBISCO; PLANTS;

D O I：

10.1126/science.1200165

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：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

Comparing photosynthetic and photovoltaic efficiencies is not a simple issue. Although both processes harvest the energy in sunlight, they operate in distinctly different ways and produce different types of products: biomass or chemical fuels in the case of natural photosynthesis and nonstored electrical current in the case of photovoltaics. In order to find common ground for evaluating energy-conversion efficiency, we compare natural photosynthesis with present technologies for photovoltaic-driven electrolysis of water to produce hydrogen. Photovoltaic-driven electrolysis is the more efficient process when measured on an annual basis, yet short-term yields for photosynthetic conversion under optimal conditions come within a factor of 2 or 3 of the photovoltaic benchmark. We consider opportunities in which the frontiers of synthetic biology might be used to enhance natural photosynthesis for improved solar energy conversion efficiency.

引用

页码：805 / 809

页数：5

共 64 条

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