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Chemical Reviews最新综述：石墨烯材料及其在染料敏化太阳能电池的应用
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Graphene Materials and Their Use in Dye-Sensitized Solar Cells 共26页 引文249篇 Joseph D. Roy-Mayhew† , ‡ and Ilhan A. Aksay † , * †Department of Chemical & Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States ‡Vorbeck Materials Corporation, 8306 Patuxent Range Road Suite 103, Jessup, Maryland 20794, United States CONTENTS 1. Introduction A 2. Graphene Materials C 3. Photoanode F 3.1. Transparent Electrode F 3.2. Semiconducting Layer H 3.3. Sensitizer K 4. Electrolyte L 5. Counter Electrode O 5.1. Measurement Techniques Q 5.2. Graphene Materials R 5.3. Hybrid Electrodes T 6. Graphene Applications in Other Types of Solar Cells U 7. Conclusions and Outlook U Author Information V Corresponding Author V Notes V Biographies V Acknowledgments V Abbreviations V References W Dye-sensitized solar cells (DSSCs) have taken up broad interest as a promising low-cost solar cell technology since they were fi rst reported on in 1991.1DSSCs use specialized materials for speci fi c cell functions such as photon absorption, charge separation, and charge transport. Figure 1 depicts a simpleenergy diagram of how these devices function. A photon enters the solar cell through a transparent electrode and can be absorbed by a sensitizer, exciting an electron (a), as shown in Figure 1A. Then this electron can be injected into the conduction band of a neighboring semiconductor (b) and di ff use to the current collector (c). The electron can perform work and fl ow to the cathode (d) where it is transferred to an electrolyte or a hole conductor (e). This material can thentransfer an electron to the sensitizer (f), regenerating it and completing the circuit. To optimize these devices and achieve respectable power conversion e ffi ciencies ( η , de fi ned as the ratio of power incident on the solar cell to the maximum power produced by the solar cell; see Box 1 for details on solar cell characterization) researchers have looked at ways to (i) maximize light harvesting and (ii) minimize losses due to parasitic electron transfer pathways (v, w, x, y, and z in Figure1B) while also minimizing the overpotentials required to drive the electron transfer in the desired direction .  [ Last edited by nowitzki_ci on 2014-5-11 at 13:58 ] |
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