Use of near-infrared radiation for oxygenic photosynthesis via photon up-conversion

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• 作者：Taras Antal^a ; ¹ ; Emilia Harju^b ; Laura Pihlgren^b ; ^c ; Mika Lastusaari^b ; ^d ; Taina Tyystj&auml ; rvi^a ; Jorma Hö ; ls&auml ; ^b ; ^d ; Esa Tyystj&auml ; rvi^a ; ^{esatyy@utu.fi}
• 关键词：Photon up-conversion ; Biohydrogen ; Photosynthesis ; Near infrared radiation ; NIR
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：May, 2012
• 卷：37
• 期：10
• 页码：8859-8863
• 文件大小：696 K

摘要

Radiation between 400 and 700聽nm, used for oxygenic photosynthesis by cyanobacteria, algae and plants, represents only 44%of total solar energy while the range above 700聽nm comprises 52%. An ability to use near infrared (NIR, 700-1200聽nm) radiation would greatly improve the efficiency of photosynthesis, but NIR photons have too low energy to excite the photosystems of oxygenic photosynthesis. Here we show that a mechanism called photon up-conversion can turn NIR radiation into an energy source for photosynthesis. In the future, it may be possible to up-convert the NIR part of the solar energy flux to visible light for use in photo-induced biohydrogen production by oxygenic photosynthesis.