{"title":"CNQDs和花青素对TiO2的共敏效应用于高效染料敏化太阳能电池：实验和理论见解","authors":"Ivan H. Hameed, Maher K. Ali, Shinwar A. Idrees","doi":"10.1002/slct.202502197","DOIUrl":null,"url":null,"abstract":"<p>This study investigates the fabrication and characterization of natural pigment and carbon nitride quantum dots (CNQDs) co-sensitized solar cells. The results showed that CNQDs@TiO<sub>2</sub> significantly improved light absorption and charge transfer properties. The effects of pH and temperature were examined to assess their influence on DSSC performance. It was found that an acidic medium yields the best results, with an optimal temperature of 25 °C. Photovoltaic measurements revealed a significant efficiency improvement in DSSCs, increasing from 2.7% for anthocyanin@TiO<sub>2</sub> to 8.6% when modified with anthocyanine & CNQDs@TiO<sub>2</sub>. In addition, the fill factor was improved from 0.46 to 0.63, respectively. The structural composition, size, morphology, and optical properties of CNQDs@TiO<sub>2</sub> were characterized using FTIR, DRS, XRD, FESEM, EDX, and TEM analytical techniques. DFT calculations were employed to learn more about the mechanism, efficiency, and photovoltaic properties of synthesized DSSCs. The theoretical results agree with experimental data in which the anthocyanine & CNQDs @ TiO<sub>2</sub> system is more efficient. CNQDs can be mediators, broadening the spectrum of light harvesting and providing extra bands that facilitate electron transitions.</p>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 29","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Co-Sensitization Effect of CNQDs and Anthocyanin on TiO2 for High-Efficiency Dye-Sensitized Solar Cells: Experimental and Theoretical Insights\",\"authors\":\"Ivan H. Hameed, Maher K. Ali, Shinwar A. Idrees\",\"doi\":\"10.1002/slct.202502197\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This study investigates the fabrication and characterization of natural pigment and carbon nitride quantum dots (CNQDs) co-sensitized solar cells. The results showed that CNQDs@TiO<sub>2</sub> significantly improved light absorption and charge transfer properties. The effects of pH and temperature were examined to assess their influence on DSSC performance. It was found that an acidic medium yields the best results, with an optimal temperature of 25 °C. Photovoltaic measurements revealed a significant efficiency improvement in DSSCs, increasing from 2.7% for anthocyanin@TiO<sub>2</sub> to 8.6% when modified with anthocyanine & CNQDs@TiO<sub>2</sub>. In addition, the fill factor was improved from 0.46 to 0.63, respectively. The structural composition, size, morphology, and optical properties of CNQDs@TiO<sub>2</sub> were characterized using FTIR, DRS, XRD, FESEM, EDX, and TEM analytical techniques. DFT calculations were employed to learn more about the mechanism, efficiency, and photovoltaic properties of synthesized DSSCs. The theoretical results agree with experimental data in which the anthocyanine & CNQDs @ TiO<sub>2</sub> system is more efficient. CNQDs can be mediators, broadening the spectrum of light harvesting and providing extra bands that facilitate electron transitions.</p>\",\"PeriodicalId\":146,\"journal\":{\"name\":\"ChemistrySelect\",\"volume\":\"10 29\",\"pages\":\"\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ChemistrySelect\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/slct.202502197\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ChemistrySelect","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/slct.202502197","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Co-Sensitization Effect of CNQDs and Anthocyanin on TiO2 for High-Efficiency Dye-Sensitized Solar Cells: Experimental and Theoretical Insights
This study investigates the fabrication and characterization of natural pigment and carbon nitride quantum dots (CNQDs) co-sensitized solar cells. The results showed that CNQDs@TiO2 significantly improved light absorption and charge transfer properties. The effects of pH and temperature were examined to assess their influence on DSSC performance. It was found that an acidic medium yields the best results, with an optimal temperature of 25 °C. Photovoltaic measurements revealed a significant efficiency improvement in DSSCs, increasing from 2.7% for anthocyanin@TiO2 to 8.6% when modified with anthocyanine & CNQDs@TiO2. In addition, the fill factor was improved from 0.46 to 0.63, respectively. The structural composition, size, morphology, and optical properties of CNQDs@TiO2 were characterized using FTIR, DRS, XRD, FESEM, EDX, and TEM analytical techniques. DFT calculations were employed to learn more about the mechanism, efficiency, and photovoltaic properties of synthesized DSSCs. The theoretical results agree with experimental data in which the anthocyanine & CNQDs @ TiO2 system is more efficient. CNQDs can be mediators, broadening the spectrum of light harvesting and providing extra bands that facilitate electron transitions.
期刊介绍：
ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.
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