Improving performance and stability in quantum dot-sensitized solar cell through single layer graphene/Cu2S nanocomposite counter electrode
| العنوان: | Improving performance and stability in quantum dot-sensitized solar cell through single layer graphene/Cu2S nanocomposite counter electrode |
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| المؤلفون: | Mucahit Yilmaz, Yemliha Altintas, Mahir Gulen, Erdi Akman, Evren Mutlugun, Savaş Sönmezoğlu |
| المساهمون: | AGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümü, Mutlugün, Evren |
| المصدر: | Renewable Energy RENEWABLE ENERGY |
| بيانات النشر: | Elsevier BV, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Auxiliary electrode, Materials science, 020209 energy, 02 engineering and technology, Electrolyte, Chemical vapor deposition, Electrodeposition method, law.invention, Ion, law, Solar cell, 0202 electrical engineering, electronic engineering, information engineering, 0601 history and archaeology, Quantum-dot sensitized solar cell (QDSSC), Single layer graphene and Cu2S film, Nanocomposite, 060102 archaeology, Renewable Energy, Sustainability and the Environment, business.industry, 06 humanities and the arts, Adhesion, Counter electrode, Quantum dot, Optoelectronics, business |
| الوصف: | The authors would like to thank Hanife Arslan and Bahri Eren Uzuner for they assistance during the experimental studies. EM acknowledges Turkish Academy of Sciences Distinguished Young Scientist Award (TUBA-GEBIP). In this work, we presented an effective nanocomposite to modify the Cu2S film by employing single layer graphene (SLG) frameworks via chemical vapor deposition, and utilized this nanocomposite as counter electrode (CE) with CdSe/ZnS core/shell quantum dots for highly stable and efficient quantum dot-sensitized solar cell (QDSSC). Furthermore, Cu2S film is directly synthesized on SLG framework by electrodeposition method. Using this nanocomposite as CE, we have achieved the high efficiency as high as 3.93% with fill factor of 0.63, which is higher than those with bare Cu2S CE (3.40% and 0.57). This remarkable performance is attributed to the surface area enhancement by creating nanoflower-shape, the reduction of charge transfer resistance, improvement of catalytic stability, and the surface smoothness as well as good adhesion. More importantly, no visible color change and detachment from surface for the Cu2S@SLG nanocomposite was observed, demonstrating that the SLG framework is critical role in shielding the Cu2S structure from sulphur ions into electrolyte, and increasing the adhesion of the Cu2S structure on surface, thus preventing its degradation. Consequently, the Cu2S@SLG nanocomposite can be utilized as an effective agent to boost up the performance of QDSSCs. (c) 2019 Elsevier Ltd. All rights reserved. Turkish Academy of Sciences |
| وصف الملف: | application/pdf |
| تدمد: | 0960-1481 |
| DOI: | 10.1016/j.renene.2019.07.150 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::477590d56918b26a238f7c947c3e7a18 https://doi.org/10.1016/j.renene.2019.07.150 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....477590d56918b26a238f7c947c3e7a18 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09601481 |
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| DOI: | 10.1016/j.renene.2019.07.150 |