Silicon Substrate Treated with Diluted NaOH Aqueous for Si/PEDOT: PSS Heterojunction Solar Cell with Performance Enhancement
| Autor: | Leiming Yu, Hao Guo, Yu Yang, Tao Chen, Tao Sun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Control and Optimization
Materials science Silicon 020209 energy Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Substrate (electronics) lcsh:Technology law.invention Si/PEDOT: PSS solar cell PEDOT:PSS law Solar cell 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Engineering (miscellaneous) optical-electro characteristics Aqueous solution Equivalent series resistance lcsh:T Renewable Energy Sustainability and the Environment Heterojunction Carrier lifetime 021001 nanoscience & nanotechnology short-circuit current chemistry Chemical engineering NaOH aqueous 0210 nano-technology surface modification Energy (miscellaneous) |
| Zdroj: | Energies Volume 13 Issue 18 Energies, Vol 13, Iss 4659, p 4659 (2020) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en13184659 |
| Popis: | Si/PEDOT: PSS solar cell is an important alternative for photovoltaic device due to its anticipated high theoretical efficiency and simple manufacturing process. In this study, processing silicon substrate with diluted NaOH aqueous solution was found to be an effective method for improving device performance, one that notably improves junction quality and light trapping ability. When immersed in diluted NaOH aqueous solution, the junction quality was improved according to the enlarged fill factor, reduced series resistance, and enhanced minor carrier lifetime. The diluted NaOH aqueous solution immersion etched the silicon surface and helped with the enhancement of light trapping ability, further improving the short-circuit current density. Although diluted NaOH aqueous solution immersion for bare silicon could improve the performance of devices, proper immersion time was needed. The influence of immersion time on device performances was investigated. The photovoltaic conversion efficiency easily increased from 10.01% to 12.05% when silicon substrate was immersed in diluted NaOH aqueous for 15 min. This study contributes to providing efficient and convenient methods for preparing high performance Si/PEDOT: PSS solar cells. |
| Databáze: | OpenAIRE |
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