Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar Cells Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar Cells |
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Document Language |
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English |
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Abstract |
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Optical spacers based on metal oxide layers have been intensively studied in poly(3-hexylthiophene) (P3HT) based polymer solar cells for optimizing light
distribution inside the device, but to date, the potential of such a metal oxide spacer to improve the electronic performance of the polymer solar cells simultaneously has not
yet be investigated. Here, a detailed study of performance improvement in high efficient polymer solar cells by insertion of solution-processed ZnO optical spacer using
ethanolamine surface modification is reported. Insertion of the modified ZnO optical spacer strongly improves the performance of polymer solar cells even in the absence of
an increase in light absorption. The electric improvements of the device are related to improved electron extraction, reduced contact barrier, and reduced recombination at the
cathode. Importantly, it is shown for the first time that the morphology of optical spacer layer is a crucial parameter to obtain highly efficient solar cells in normal device
structures. By optimizing optical spacer effects, contact resistance, and morphology of ZnO optical spacers, poly[[4,8-bis[(2-ethylhexyl) oxy] benzo[1,2-b: 4,5-b']
dithiophene-2,6diyl] [3-fluoro-2-[(2-ethylhexyl) carbonyl] thieno[3,4-b] thiophenediyl]] (PTB7):[6,6]-phenyl-C71-butyric acid (PC70 BM) bulk heterojunction solar cells
with conversion efficiency of 7.6% are obtained in normal device structures with all-solution-processed interlayers. |
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ISSN |
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1614-6832 |
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Journal Name |
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ADVANCED ENERGY MATERIALS |
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Volume |
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4 |
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Issue Number |
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18 |
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Publishing Year |
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1435 AH
2014 AD |
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Article Type |
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Article |
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Added Date |
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Monday, July 24, 2017 |
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Researchers
| S Ben Dkhil | Ben Dkhil, S | Researcher | | |
| D Duche | Duche, D | Researcher | | |
| M Gaceur | Gaceur, M | Researcher | | |
| AK Thakur | Thakur, AK | Researcher | | |
| FB Aboura | Aboura, FB | Researcher | | |
| L Escoubas | Escoubas, L | Researcher | | |
| JJ Simon | Simon, JJ | Researcher | | |
| A Guerrero | Guerrero, A | Researcher | | |
| J Bisquert | Bisquert, J | Researcher | | |
| G Garcia-Belmonte | Garcia-Belmonte, G | Researcher | | |
| QY Bao | Bao, QY | Researcher | | |
| M Fahlman | Fahlman, M | Researcher | | |
| C Videlot-Ackermann | Videlot-Ackermann, C | Researcher | | |
| O Margeat | Margeat, O | Researcher | | |
| J Ackermann | Ackermann, J | Researcher | | |
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