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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Prospects for efficient solar energy upconversion using metalloporphyrins as dual absorber-upconverters
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Prospects for efficient solar energy upconversion using metalloporphyrins as dual absorber-upconverters

机译：利用金属卟啉作为双凹陷升压器的高效太阳能上升的前景

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摘要

The novel potential use of selected metalloporphyrins as dual absorber-upconverters in solar photovoltaics is discussed. Additional efficiencies are available if use can be made of the porphyrin's short-lived S-2 state, which is formed directly by excitation in the strong Soret transition in the blue-violet and also by absorption in the Q bands followed by rapid intersystem crossing and upconversion by triplet-triplet annihilation. The main challenge in realizing a working photovoltaic based on such a protocol is that energy must be extracted from the S-2 state of the porphyrin within its picosecond lifetime. The structure-property relationships that may be used to select metalloporphyrins with the longest possible intrinsic lifetimes are outlined. The prospects for energy extraction from S(2)via ultrafast electron transfer or ultrafast resonant electronic energy transfer within a solid structure designed to maximize efficiency are discussed. Both MOF and pendant porphyrin polymer structures offer reasonable possibilities.
机译：新颖的潜在用途选择金属卟啉在太阳能光伏双吸收剂的上变频器的讨论。额外的效率可用如果可使用卟啉的短命S-2的状态，这是直接在蓝紫色的强的Soret过渡形成由激励并且还通过在Q波段吸收随后快速系间窜越和的通过三重态湮灭上转换。在实现基于这样的协议的工作光伏主要的挑战是，能源必须从其寿命皮秒内的卟啉的S-2的状态中提取出来。可用于选择具有最长的内在寿命金属卟啉的结构与性能的关系进行了概述。从S（2）能量提取通过超快电子转移或超快设计成最大化效率的固体结构中电子共振能量转移的前景进行了讨论。无论财政部和挂件卟啉聚合物的结构是合理的可能性。

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