{"title":"Sappanwood-derived green luminescent carbon dots for enhancing performance of dye-sensitized solar cell","authors":"Osama Madkhali","doi":"10.1007/s10854-024-13454-y","DOIUrl":null,"url":null,"abstract":"<p>Carbon dots (CD) are versatile nanomaterials which exhibit unique properties depending on their source of synthesis. For instance, CD synthesized from chemical sources require passivation agents, while those derived from natural sources are self-passivated. These CD possess vibrant luminescence offering potential applications across various scientific and engineering domains. In this investigation, Brazilwood (sappanwood) is being used to synthesize CD via a hydrothermal process. The resultant CD demonstrated outstanding optical properties with a fluorescence lifetime of 3.52 ns and an average particle size of 4.25 nm. Utilizing these CD as co-sensitizers in a dye-sensitized solar cell, alongside N719 dye, increased efficiency by more than tenfold (4.16%) compared to the device solely sensitized with CD (0.38%). Such CD can be used for developing better efficient devices.</p>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s10854-024-13454-y","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Carbon dots (CD) are versatile nanomaterials which exhibit unique properties depending on their source of synthesis. For instance, CD synthesized from chemical sources require passivation agents, while those derived from natural sources are self-passivated. These CD possess vibrant luminescence offering potential applications across various scientific and engineering domains. In this investigation, Brazilwood (sappanwood) is being used to synthesize CD via a hydrothermal process. The resultant CD demonstrated outstanding optical properties with a fluorescence lifetime of 3.52 ns and an average particle size of 4.25 nm. Utilizing these CD as co-sensitizers in a dye-sensitized solar cell, alongside N719 dye, increased efficiency by more than tenfold (4.16%) compared to the device solely sensitized with CD (0.38%). Such CD can be used for developing better efficient devices.
碳点（CD）是一种用途广泛的纳米材料，根据其合成来源的不同而表现出独特的性质。例如，从化学来源合成的碳点需要钝化剂，而从天然来源获得的碳点则可以自钝化。这些光盘具有鲜艳的荧光，在各种科学和工程领域具有潜在的应用价值。在这项研究中，巴西木（蓝檀木）被用来通过水热法合成 CD。合成的 CD 具有出色的光学特性，荧光寿命为 3.52 ns，平均粒径为 4.25 nm。在染料敏化太阳能电池中，利用这些 CD 作为共敏化剂，与 N719 染料一起使用，与只用 CD 敏化的设备（0.38%）相比，效率提高了十倍以上（4.16%）。这种 CD 可用于开发更高效的设备。
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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