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http://hdl.handle.net/10397/106955
Title: | Strategies for high performance perovskite/crystalline silicon four-terminal tandem solar cells | Authors: | Ren, Z Zhou, J Zhang, Y Ng, A Shen, Q Cheung, SH Shen, H Li, K Zheng, Z So, SK Djurišić, AB Surya, C |
Issue Date: | 1-Jun-2018 | Source: | Solar energy materials and solar cells, 1 June 2018, v. 179, p. 36-44 | Abstract: | In this work, we report systematic studies on improving the optical and electrical properties of four-terminal perovskite/c-Si tandem solar cells. Light harvesting power of the device is significantly enhanced due to the complementary absorption spectra of the perovskite and c-Si absorber materials. To obtain high power conversion efficiency (PCE) for the device, careful engineering of optoelectronic properties of the devices are accomplished through: 1. Oxygen annealing treatment for reducing defect density of perovskite materials; 2. Optical engineering of the transparent electrode (MoO3/Au/MoO3) to obtain high transmission at long wavelengths for the tandem solar cell applications; and 3. Enhancement of light harvesting power achieved by using the novel biomimicking elastomeric petals as the light trapping layer. The individual perovskite solar cell (PSC) with MoO3/Au/MoO3 electrode with or without light trapping layer yields an average PCE of 16.6% and 16.0% respectively. By combining c-Si bottom cell with perovskite top cell mechanically, an overall PCE of 22.4% is achieved for the averaged value, which is a promising result for future development of perovskite based tandem solar cells. | Keywords: | Biomimicking elastomeric petals Oxygen annealing Perovskites Silicon Tandem solar cells Transparent electrodes |
Publisher: | Elsevier BV | Journal: | Solar energy materials and solar cells | ISSN: | 0927-0248 | DOI: | 10.1016/j.solmat.2018.01.004 | Rights: | © 2018 Published by Elsevier B.V. © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ The following publication Ren, Z., Zhou, J., Zhang, Y., Ng, A., Shen, Q., Cheung, S. H., ... & Surya, C. (2018). Strategies for high performance perovskite/crystalline silicon four-terminal tandem solar cells. Solar Energy Materials and Solar Cells, 179, 36-44 is available at https://doi.org/10.1016/j.solmat.2018.01.004. |
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