Meticulously designed red emission carbon dots as efficient and stable luminescent species for rapid latent fingerprint recognition and light emitting diodes

Cao，Jianbo1; Chen，Rui1; Wang，Linfan1; Xing，Haoming1; Hu，Houwen1; Yang，Xiangdong2; Gu，Chenjie1; Tang，Siyuan3; Chen，Da1

2024-07-01

10.1016/j.cej.2024.152121

Chemical Engineering Journal   影响因子和分区

1385-8947

The preparation of carbon dots (CDs) emitting long wavelength has attracted more attentions due to their unique advantages in biological and optoelectronic fields, including the wide absorption, long PL lifetime and deep-tissue penetration. Herein, we prepare the nitrogen and sulfur co-doped red emission carbon dots (R-CDs) from the 2,4-diaminodiphenylamine (DDA) and thiourea via a solvothermal reaction, which exhibit reliable red emission at 613 nm and possess a high quantum yield (QY) of 34 %. Meanwhile, the structural analysis and theoretical calculation reveal that the sulfur doping from thiourea increases the nitrogen and oxygen content of CDs, leading to the red emission observed in R-CDs. Subsequently, we design an integrated fingerprints recognition system based on the R-CDs phosphors for the imaging of latent fingerprints (LFPs) and fast LFPs recognition, expanding the application of biometric identification and comparison technology based on fluorescence. Finally, we successfully apply the R-CDs into red and white light-emitting diodes, improving plant growth efficiency. As a result, this work provides a new in-depth insight of red emission CDs and expands the application in latent fingerprint recognition and light-emitting diodes.

Fingerprint recognition Light-emitting diodes Red emission CDs Sulfur doping

SCI ; EI

英语

其他

20242016094162

Carbon ; Nitrogen ; Palmprint recognition ; Sulfur ; Thioureas

Semiconductor Devices and Integrated Circuits:714.2 ; Computer Applications:723.5 ; Chemical Products Generally:804 ; Organic Compounds:804.1

ENGINEERING

2-s2.0-85192755503

Scopus

1.The Research Institute of Advanced Technologies,Department of Microelectronic Science and Engineering,Ningbo University,Ningbo,315211,China
2.Institute of Micro/Nano Materials and Devices,Ningbo University of Technology,Ningbo,315211,China
3.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG),Southern University of Science and Technology,Shenzhen,518055,China

Cao，Jianbo,Chen，Rui,Wang，Linfan,et al. Meticulously designed red emission carbon dots as efficient and stable luminescent species for rapid latent fingerprint recognition and light emitting diodes[J]. Chemical Engineering Journal,2024,491.

Cao，Jianbo.,Chen，Rui.,Wang，Linfan.,Xing，Haoming.,Hu，Houwen.,...&Chen，Da.(2024).Meticulously designed red emission carbon dots as efficient and stable luminescent species for rapid latent fingerprint recognition and light emitting diodes.Chemical Engineering Journal,491.

Cao，Jianbo,et al."Meticulously designed red emission carbon dots as efficient and stable luminescent species for rapid latent fingerprint recognition and light emitting diodes".Chemical Engineering Journal 491(2024).