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Effect of surfactant surface nature on the energy transfer efficiency (η) of a carbon dot-dye system
Current Applied Physics ( IF 2.4 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.cap.2020.06.019
Jayasmita Jana , Ik Keun Yoo , Jin Suk Chung , Seung Hyun Hur

Abstract Carbon dots (CDs) have unique optoelectronic properties and are considered efficient fluorescent probes as organic dyes, semiconducting quantum dots, metallic clusters, etc. A carbon dot-dye system has been established to study alternative photoelectric conversion processes. For this purpose, a CuO-associated CD was synthesized using a green chemical method. The energy conversion efficiency was monitored using a cationic, anionic, and neutral dye. The nature of the dye has an important effect on the energy transfer process. This limitation from its electrostatic nature was overcome by introducing a surfactant into the system. Both positively and negatively charged surfactants were used in this study. The nature of the surfactant was found to have a significant effect on the energy transfer process within positively charged CDs and organic dyes. The individual interactions within surfactant-CD and surfactant-dye system can cause modification. This CD-dye-surfactant system with further modifications can be used appropriately in dye-sensitized solar cells.

中文翻译:

表面活性剂表面性质对碳点染料系统能量转移效率 (η) 的影响

摘要 碳点(CDs)具有独特的光电特性,被认为是有机染料、半导体量子点、金属簇等的高效荧光探针。已经建立了碳点染料系统来研究替代的光电转换过程。为此,使用绿色化学方法合成了与 CuO 相关的 CD。使用阳离子、阴离子和中性染料监测能量转换效率。染料的性质对能量转移过程有重要影响。通过将表面活性剂引入系统,克服了其静电性质的限制。本研究中使用了带正电和带负电的表面活性剂。发现表面活性剂的性质对带正电荷的 CD 和有机染料中的能量转移过程有显着影响。表面活性剂-CD 和表面活性剂-染料体系中的个别相互作用会导致改性。这种经过进一步修饰的 CD-染料-表面活性剂系统可以适当地用于染料敏化太阳能电池。
更新日期:2020-09-01
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