Patterned 3-dimensional metal grid electrodes as alternative electron collectors in dye-sensitized solar cells |
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Authors: | Chua Julianto Mathews Nripan Jennings James R Yang Guangwu Wang Qing Mhaisalkar Subodh G |
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Affiliation: | School of Materials Science & Engineering, Nanyang Technological University, Singapore. |
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Abstract: | We describe the application of 3-dimensional metal grid electrodes (3D-MGEs) as electron collectors in dye-sensitized solar cells (DSCs) as a replacement for fluorinated tin oxide (FTO) electrodes. Requirements, structure, advantages, and limitations of the metal grid electrodes are discussed. Solar conversion efficiencies of 6.2% have been achieved in 3D-MGE based solar cells, comparable to that fabricated on FTO (7.1%). The charge transport properties and collection efficiencies in these novel solar cells have been studied using electrochemical impedance spectroscopy. |
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