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A high efficiency 3D photovoltaic microwire with carbon nanotubes (CNT)‐quantum dot (QD) hybrid interface |
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| Authors: | Mohammed J. Uddin Deborah E. Daramola Ever Velasquez Tarik J. Dickens Jin Yan Emily Hammel Federico Cesano Okenwa I. Okoli |
| Affiliation: | 1. High‐Performance Materials Institute, FAMU‐FSU College of Engineering, Florida State University, , Tallahassee, FL 32310 USA;2. Department of Chemistry IFM, Nanostructured Interface and Surface (NIS), Center of Excellence, University of Turin, , Torino, 10125 Italy |
| Abstract: | An innovative hybrid QD sensitized photovoltaic carbon nanotubes microyarn has been developed using thermally‐stable and highly conductive carbon nanotubes yarns (CNYs). These CNYs are highly inter‐aligned, ultrastrong and flexible with excellent electrical conductivity, mechanical integrity and catalytic properties. The CNYs are coated with a QD‐incorporated TiO2 microfilm and intertwined with a second set of CNYs as a counter electrode (CE). The maximum photon to current conversion efficiency (ηAM1.5) achieved with prolonged‐time stability was 5.93%. These cells are capable of efficiently harvesting incident photons regardless of direction and generating photocurrents with high efficiency and operational stability.  |
| Keywords: | carbon nanotubes yarns solar cells quantum dots microwires hybrid solar cells |