A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization
Recently, tuning the green emission of CsPbBr<sub>3</sub> quantum dots (QDs) to blue through quantum size and confinement effects has received considerable attention due to its remarkable photophysical properties. However, the synthesis of such a blue-emitting QD has been challenging. He...
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MDPI AG
2023-07-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/7/802 |
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| author | Dula Adugna Idosa Mulualem Abebe Dhakshnamoorthy Mani Aparna Thankappan Sabu Thomas Fekadu Gochole Aga Jung Yong Kim |
| author_facet | Dula Adugna Idosa Mulualem Abebe Dhakshnamoorthy Mani Aparna Thankappan Sabu Thomas Fekadu Gochole Aga Jung Yong Kim |
| author_sort | Dula Adugna Idosa |
| collection | DOAJ |
| description | Recently, tuning the green emission of CsPbBr<sub>3</sub> quantum dots (QDs) to blue through quantum size and confinement effects has received considerable attention due to its remarkable photophysical properties. However, the synthesis of such a blue-emitting QD has been challenging. Herein, supersaturated recrystallization was successfully implemented at room temperature to synthesize a broadband blue-emitting ZnBr<sub>2</sub>-doped CsPbBr<sub>3</sub> QD with an average size of ~3 nm covering the blue spectrum. The structural and optical properties of CsPbBr<sub>3</sub> QDs demonstrated that QD particle size may decrease by accommodating ZnBr<sub>2</sub> dopants into the perovskite precursor solution. Energy-dispersive spectroscopy confirmed the presence of zinc ions with the QDs. This work provides a new strategy for synthesizing strongly quantum-confined QD materials for photonic devices such as light-emitting diodes and lighting. |
| first_indexed | 2024-03-11T00:44:05Z |
| format | Article |
| id | doaj.art-91fec92cd552412f85b93367373f261e |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T00:44:05Z |
| publishDate | 2023-07-01 |
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| series | Photonics |
| spelling | doaj.art-91fec92cd552412f85b93367373f261e2023-11-18T20:58:22ZengMDPI AGPhotonics2304-67322023-07-0110780210.3390/photonics10070802A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated RecrystallizationDula Adugna Idosa0Mulualem Abebe1Dhakshnamoorthy Mani2Aparna Thankappan3Sabu Thomas4Fekadu Gochole Aga5Jung Yong Kim6Faculty of Materials Science and Engineering, Jimma Institute of Technology, Jimma University, Jimma P.O. Box 378, EthiopiaFaculty of Materials Science and Engineering, Jimma Institute of Technology, Jimma University, Jimma P.O. Box 378, EthiopiaFaculty of Materials Science and Engineering, Jimma Institute of Technology, Jimma University, Jimma P.O. Box 378, EthiopiaDepartment of Physics, Baselius College, Kottayam 686001, IndiaSchool of Energy Materials, Mahatma Gandhi University, Kottayam 686560, IndiaDepartment of Materials Science and Engineering, Adama Science and Technology University, Adama P.O. Box 1888, EthiopiaDepartment of Materials Science and Engineering, Adama Science and Technology University, Adama P.O. Box 1888, EthiopiaRecently, tuning the green emission of CsPbBr<sub>3</sub> quantum dots (QDs) to blue through quantum size and confinement effects has received considerable attention due to its remarkable photophysical properties. However, the synthesis of such a blue-emitting QD has been challenging. Herein, supersaturated recrystallization was successfully implemented at room temperature to synthesize a broadband blue-emitting ZnBr<sub>2</sub>-doped CsPbBr<sub>3</sub> QD with an average size of ~3 nm covering the blue spectrum. The structural and optical properties of CsPbBr<sub>3</sub> QDs demonstrated that QD particle size may decrease by accommodating ZnBr<sub>2</sub> dopants into the perovskite precursor solution. Energy-dispersive spectroscopy confirmed the presence of zinc ions with the QDs. This work provides a new strategy for synthesizing strongly quantum-confined QD materials for photonic devices such as light-emitting diodes and lighting.https://www.mdpi.com/2304-6732/10/7/802quantum dothalide perovskiteCsPbBr<sub>3</sub>blue light emittingquantum confinementsupersaturated recrystallization |
| spellingShingle | Dula Adugna Idosa Mulualem Abebe Dhakshnamoorthy Mani Aparna Thankappan Sabu Thomas Fekadu Gochole Aga Jung Yong Kim A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization Photonics quantum dot halide perovskite CsPbBr<sub>3</sub> blue light emitting quantum confinement supersaturated recrystallization |
| title | A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization |
| title_full | A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization |
| title_fullStr | A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization |
| title_full_unstemmed | A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization |
| title_short | A Blue-Light-Emitting 3 nm-Sized CsPbBr<sub>3</sub> Perovskite Quantum Dot with ZnBr<sub>2</sub> Synthesized by Room-Temperature Supersaturated Recrystallization |
| title_sort | blue light emitting 3 nm sized cspbbr sub 3 sub perovskite quantum dot with znbr sub 2 sub synthesized by room temperature supersaturated recrystallization |
| topic | quantum dot halide perovskite CsPbBr<sub>3</sub> blue light emitting quantum confinement supersaturated recrystallization |
| url | https://www.mdpi.com/2304-6732/10/7/802 |
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