Pub Date : 2024-06-22DOI: 10.1016/j.mlblux.2024.100234
Zhen Zhong , Xiuduan Gong , Haihong Wei , Haoran Mu , Jian Yuan
Two-dimensional (2D) layered black phosphorus (BP), with a direct band gap and high carrier mobility, has shown great potential for next generation electronics and optoelectronics. However, how to prepare a large-area 2D material film is still a big problem for realizing its practical applications. Herein, an improved one-step solution-processable method is put forward to solving this problem to get uniform and large-area BP film. Our results show that the designed electrodes can be fully covered by BP flakes and the corresponding FET reveals relatively high performance. Our study opens a new avenue in fabricating large-area ultra-thin BP films.
二维(2D)层状黑磷(BP)具有直接带隙和高载流子迁移率,在下一代电子学和光电子学领域显示出巨大的潜力。然而,如何制备大面积的二维材料薄膜仍是实现其实际应用的一大难题。为解决这一问题,本文提出了一种改进的一步溶液可加工方法,以获得均匀的大面积 BP 薄膜。我们的研究结果表明,所设计的电极可以被 BP 片完全覆盖,相应的场效应晶体管也显示出了相对较高的性能。我们的研究为制造大面积超薄 BP 薄膜开辟了一条新途径。
{"title":"Large-area solution-processable black phosphorus for electronic application","authors":"Zhen Zhong , Xiuduan Gong , Haihong Wei , Haoran Mu , Jian Yuan","doi":"10.1016/j.mlblux.2024.100234","DOIUrl":"https://doi.org/10.1016/j.mlblux.2024.100234","url":null,"abstract":"<div><p>Two-dimensional (2D) layered black phosphorus (BP), with a direct band gap and high carrier mobility, has shown great potential for next generation electronics and optoelectronics. However, how to prepare a large-area 2D material film is still a big problem for realizing its practical applications. Herein, an improved one-step solution-processable method is put forward to solving this problem to get uniform and large-area BP film. Our results show that the designed electrodes can be fully covered by BP flakes and the corresponding FET reveals relatively high performance. Our study opens a new avenue in fabricating large-area ultra-thin BP films.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150824000073/pdfft?md5=78e71cb48fef446bb1214bbea4446a16&pid=1-s2.0-S2590150824000073-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We have developed a method for designing polymer and graphene nanoplatelet (GNP) composites that show high dielectric constants over a wide range of GNP contents. GNPs are dispersed in the composites through plasma-surface modification and aligned by applying an electric field (EF). This creates a large number of microcapacitor structures of GNPs separated by the polymer. The maximum dielectric constant of the sample to which the EF is applied is approximately twice that of the sample to which the EF is not applied. Furthermore, the maximum dielectric constants of the samples with plasma-surface modified GNPs are higher than those of the samples with unmodified GNPs. The composites show high dielectric constants (∼500 at 100 Hz) over a wide range of GNP contents (6 ∼ 10 wt%) while maintaining mechanical flexibility (Young’s modulus:12 ± 4 MPa).
{"title":"Composites with aligned and plasma-surface-modified graphene nanoplatelets and high dielectric constants","authors":"Kaito Nagayama , Taku Goto , Koichi Mayumi , Rina Maeda , Tsuyohito Ito , Yoshiki Shimizu , Kohzo Ito , Yukiya Hakuta , Kazuo Terashima","doi":"10.1016/j.mlblux.2024.100233","DOIUrl":"https://doi.org/10.1016/j.mlblux.2024.100233","url":null,"abstract":"<div><p>We have developed a method for designing polymer and graphene nanoplatelet (GNP) composites that show high dielectric constants over a wide range of GNP contents. GNPs are dispersed in the composites through plasma-surface modification and aligned by applying an electric field (EF). This creates a large number of microcapacitor structures of GNPs separated by the polymer. The maximum dielectric constant of the sample to which the EF is applied is approximately twice that of the sample to which the EF is not applied. Furthermore, the maximum dielectric constants of the samples with plasma-surface modified GNPs are higher than those of the samples with unmodified GNPs. The composites show high dielectric constants (∼500 at 100 Hz) over a wide range of GNP contents (6 ∼ 10 wt%) while maintaining mechanical flexibility (Young’s modulus:12 ± 4 MPa).</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150824000061/pdfft?md5=93dd51695a713e811dbe3c5789fe0e13&pid=1-s2.0-S2590150824000061-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140549205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-12DOI: 10.1016/j.mlblux.2024.100229
Bishnu Pada Majee, Priyanka Jangra, Ashish Kumar Mishra
The two-dimensional bi-layer MoS2 is less investigated as compared to monolayer and few-layer (4–6 layers) MoS2 for fundamental aspects and applications such as photodetectors, transistors, etc. In the present work, we prepare triangular-shaped bi-layer MoS2 over SiO2/Si substrate via chemical vapour deposition (CVD) technique for surface enhanced Raman scattering (SERS) based detection of Rhodamine 6G (R6G). We perform density functional theory calculations and spectroscopy studies to investigate the semiconducting feature of bi-layer MoS2. We demonstrate the nanomolar concentration (10-9 M) limit for R6G detection at room temperature using pristine bi-layer MoS2 as SERS substrate. Further, we also examine the cryogenic response of the SERS detection of R6G with bi-layer MoS2 for the first time. The high detection limit of CVD-grown bi-layer MoS2 is ascribed to the charge transfer enabled via vibronic coupling between MoS2 and R6G molecules. This study paves the way for cryogenic-based SERS sensing.
{"title":"CVD grown bi-layer MoS2 as SERS substrate: Nanomolar detection of R6G and temperature response","authors":"Bishnu Pada Majee, Priyanka Jangra, Ashish Kumar Mishra","doi":"10.1016/j.mlblux.2024.100229","DOIUrl":"https://doi.org/10.1016/j.mlblux.2024.100229","url":null,"abstract":"<div><p>The two-dimensional bi-layer MoS<sub>2</sub> is less investigated as compared to monolayer and few-layer (4–6 layers) MoS<sub>2</sub> for fundamental aspects and applications such as photodetectors, transistors, etc. In the present work, we prepare triangular-shaped bi-layer MoS<sub>2</sub> over SiO<sub>2</sub>/Si substrate via chemical vapour deposition (CVD) technique for surface enhanced Raman scattering (SERS) based detection of Rhodamine 6G (R6G). We perform density functional theory calculations and spectroscopy studies to investigate the semiconducting feature of bi-layer MoS<sub>2</sub>. We demonstrate the nanomolar concentration (10<sup>-9</sup> M) limit for R6G detection at room temperature using pristine bi-layer MoS<sub>2</sub> as SERS substrate. Further, we also examine the cryogenic response of the SERS detection of R6G with bi-layer MoS<sub>2</sub> for the first time. The high detection limit of CVD-grown bi-layer MoS<sub>2</sub> is ascribed to the charge transfer enabled via vibronic coupling between MoS<sub>2</sub> and R6G molecules. This study paves the way for cryogenic-based SERS sensing.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150824000024/pdfft?md5=fa5dcbb41d8d8dcffac1b781737c1b67&pid=1-s2.0-S2590150824000024-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140122331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-26DOI: 10.1016/j.mlblux.2023.100224
Rahul V. Tikale , Abhijeet R. Kadam , D.K. Halwar , S.J. Dhoble
A series of Eu3+-doped of CaAlSiO4F red-emitting phosphors for different concentrations were successfully synthesized by using high temperature solid state diffusion method. The phase identification of the prepared phosphor was recorded using x-ray diffraction (XRD). In PL study, the emission peak of prepared phosphor was located at 595 nm and 618 nm due to 5D0 → 7F1 and 5D0 → 7F2 transitions at excitation of 257 nm, 395 nm and 465 nm. Morphological behaviour of prepared sample was analyzed by using scanning electron microscope (SEM). Commission de l'Eclairage chromaticity (CIE) coordinates were analyzed based on the PL emission spectra of the series CaAlSiO4F: Eu3+ activated phosphor. Therefore, these possible outcomes indicate that the CaAlSiO4F: Eu3+ products have great potential applications in solid state lighting industry.
{"title":"Luminescence investigation of red emitting CaAlSiO4F: Eu3+ doped phosphor for white LEDs based on oxyfluoride matrix","authors":"Rahul V. Tikale , Abhijeet R. Kadam , D.K. Halwar , S.J. Dhoble","doi":"10.1016/j.mlblux.2023.100224","DOIUrl":"https://doi.org/10.1016/j.mlblux.2023.100224","url":null,"abstract":"<div><p>A series of Eu<sup>3+</sup>-doped of CaAlSiO<sub>4</sub>F red-emitting phosphors for different concentrations were successfully synthesized by using high temperature solid state diffusion method. The phase identification of the prepared phosphor was recorded using x-ray diffraction (XRD). In PL study, the emission peak of prepared phosphor was located at 595 nm and 618 nm due to <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub>1</sub> and <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub>2</sub> transitions at excitation of 257 nm, 395 nm and 465 nm. Morphological behaviour of prepared sample was analyzed by using scanning electron microscope (SEM). Commission de l'Eclairage chromaticity (CIE) coordinates were analyzed based on the PL emission spectra of the series CaAlSiO<sub>4</sub>F: Eu<sup>3+</sup> activated phosphor. Therefore, these possible outcomes indicate that the CaAlSiO<sub>4</sub>F: Eu<sup>3+</sup> products have great potential applications in solid state lighting industry.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150823000443/pdfft?md5=9ee8e3f1cbd1da2eef071d4456bea015&pid=1-s2.0-S2590150823000443-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139100575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.1016/j.mlblux.2023.100223
G. Dayana Jeyaleela , J. Rosaline Vimala
Numerous antioxidants were extensively found in many plants at different levels which are associated with the therapeutic importance of medicinal plants. The therapeutic impact of the traditional plants Melia dubia's leaves was previously thoroughly explored. The current investigation aimed to examine the biological application of natural antioxidants in the bark extract of Melia Dubia and their effect on breast cancer cells by MTT test. Preliminary phytochemical analysis of six extracts of Melia dubia bark was tested. Anthocyanine compound MDB-1 (isolated compound) is separated from the potential extract (methanol) by combined chromatography methods. On In-vitro analysis, the IC50 value of MDB-1 on the MCF7 cell line is 18.32 µg/ml which exhibits a cytotoxicity effect on the breast cancer cells. The isolated compound MDB-1 will be further used to develop drug formulations to overcome world challenges in cancer treatment.
{"title":"Separation, identification and anti-Breast cancer efficacy of anthocyanin of Melia dubia bark","authors":"G. Dayana Jeyaleela , J. Rosaline Vimala","doi":"10.1016/j.mlblux.2023.100223","DOIUrl":"10.1016/j.mlblux.2023.100223","url":null,"abstract":"<div><p>Numerous antioxidants were extensively found in many plants at different levels which are associated with the therapeutic importance of medicinal plants. The therapeutic impact of the traditional plants <em>Melia dubia's</em> leaves was previously thoroughly explored. The current investigation aimed to examine the biological application of natural antioxidants in the bark extract of <em>Melia Dubia</em> and their effect on breast cancer cells by MTT test. Preliminary phytochemical analysis of six extracts of <em>Melia dubia</em> bark was tested. Anthocyanine compound MDB-1 (isolated compound) is separated from the potential extract (methanol) by combined chromatography methods. On In-vitro analysis, the IC<sub>50</sub> value of MDB-1 on the MCF7 cell line is 18.32 µg/ml which exhibits a cytotoxicity effect on the breast cancer cells. The isolated compound MDB-1 will be further used to develop drug formulations to overcome world challenges in cancer treatment.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150823000431/pdfft?md5=342c6f041962c0973fc571cbaf154062&pid=1-s2.0-S2590150823000431-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139021816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Substrates play an important role in influencing the physical properties of any thin film for different applications. The current work provides a brief overview of various substrate effects on CdSe thin film. XRD pattern reveals that CdSe films on FTO are more crystalline. The optical spectrum of CdSe films is highly affected by different substrates. The electrical properties of all samples were investigated using Hall and I-V measurements. CdSe films on FTO show higher electrical conductivity than others.
{"title":"Effect of different substrates on microstructural and optoelectrical properties of thermally evaporated CdSe thin films","authors":"Chiranji Lal , Jitendra Singh , Devendra Kumar , Prosenjit Sarkar , Pawan Kumar , Ram S Katiyar","doi":"10.1016/j.mlblux.2023.100222","DOIUrl":"https://doi.org/10.1016/j.mlblux.2023.100222","url":null,"abstract":"<div><p>Substrates play an important role in influencing the physical properties of any thin film for different applications. The current work provides a brief overview of various substrate effects on CdSe thin film. XRD pattern reveals that CdSe films on FTO are more crystalline. The optical spectrum of CdSe films is highly affected by different substrates. The electrical properties of all samples were investigated using Hall and I-V measurements. CdSe films on FTO show higher electrical conductivity than others.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259015082300042X/pdfft?md5=d23886568b305c2e7f67076017493fde&pid=1-s2.0-S259015082300042X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138559030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-20DOI: 10.1016/j.mlblux.2023.100221
Yuya Ishii
Electromechanically active nano/microfibers are promising components of sensors and actuators; however, piezoelectric polymers are normally expensive. To address this issue, this study examined the geometrical and electrostatic densities of an inexpensive highly sparse as-electrospun atactic polystyrene microfiber mat. The densities of porous individual fibers and the highly sparse fiber mat were experimentally determined to be 0.88 and 0.051 g cm−3, respectively, with corresponding material filling ratios of 80 % and 4.7 %, respectively. A high theoretical surface charge density of approximately 1.4 × 10−3 C m−2 was determined for the fiber mat after excluding air spaces in both individual fibers and the mat. These findings provide a pathway to outstanding electrets that are ultra-lightweight and have high charge densities.
机电活性纳米/微纤维是传感器和执行器的重要组成部分;然而,压电聚合物通常是昂贵的。为了解决这一问题,本研究检测了廉价的高度稀疏的静电纺无规聚苯乙烯微纤维垫的几何密度和静电密度。实验确定多孔单个纤维和高度稀疏纤维垫的密度分别为0.88和0.051 g cm - 3,相应的材料填充率分别为80%和4.7%。在排除单个纤维和纤维垫中的空气空间后,确定了纤维垫的高理论表面电荷密度约为1.4 × 10−3 cm m−2。这些发现为超轻和高电荷密度的优秀驻极体提供了途径。
{"title":"Geometrical and electrostatic densities in a highly sparse as-electrospun polystyrene microfiber mat","authors":"Yuya Ishii","doi":"10.1016/j.mlblux.2023.100221","DOIUrl":"https://doi.org/10.1016/j.mlblux.2023.100221","url":null,"abstract":"<div><p>Electromechanically active nano/microfibers are promising components of sensors and actuators; however, piezoelectric polymers are normally expensive. To address this issue, this study examined the geometrical and electrostatic densities of an inexpensive highly sparse as-electrospun atactic polystyrene microfiber mat. The densities of porous individual fibers and the highly sparse fiber mat were experimentally determined to be 0.88 and 0.051 g cm<sup>−3</sup>, respectively, with corresponding material filling ratios of 80 % and 4.7 %, respectively. A high theoretical surface charge density of approximately 1.4 × 10<sup>−3</sup> C m<sup>−2</sup> was determined for the fiber mat after excluding air spaces in both individual fibers and the mat. These findings provide a pathway to outstanding electrets that are ultra-lightweight and have high charge densities.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150823000418/pdfft?md5=a33de31140e295be64d499e6709930d3&pid=1-s2.0-S2590150823000418-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91987285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-29DOI: 10.1016/j.mlblux.2023.100220
Ekta Chandrawanshi , D.P. Bisen , Nameeta Brahme
Artificial red lights of good quality are essential for indoor plant growth as it has a wide spectrum effects on photosynthesis rate and photomorphogenic processes of organic plant growth cycle. In present work we report on Eu3+ doped Bi4Si3O12 (BSO) phosphor for spectroscopic implication in smart plant grow LEDs. Eu3+ activated series of Bi4Si3O12 phosphor have been prepared via traditional solid-state reaction method. Crystal structure and phase formation characterization is determined by using X-ray diffraction (XRD). Photoluminescence spectra of prepared phosphor shows broad excitation spectra ranging from 200 to 530 nm. The optimal Eu3+ doping concentration observed at 3 mol%. Emission spectra observed under the excitation of 270 nm shows broad emission band at 469 nm along with other characteristic peak at 500 nm-710 nm. Observed emission peaks at 622 nm, 656 nm and 702 nm were chosen opt for plant grow lights. The phytochrome PFR absorption spectra of plants matches well with the emission band of our Eu3+ doped BSO phosphor and can be considered as a viable choice for solid state lighting and plant grow light LEDs.
{"title":"Photoluminescence studies of Eu3+ doped bismuth silicate based phosphor for plant grow LEDs","authors":"Ekta Chandrawanshi , D.P. Bisen , Nameeta Brahme","doi":"10.1016/j.mlblux.2023.100220","DOIUrl":"https://doi.org/10.1016/j.mlblux.2023.100220","url":null,"abstract":"<div><p>Artificial red lights of good quality are essential for indoor plant growth as it has a wide spectrum effects on photosynthesis rate and photomorphogenic processes of organic plant growth cycle. In present work we report on Eu<sup>3+</sup> doped Bi<sub>4</sub>Si<sub>3</sub>O<sub>12</sub> (BSO) phosphor for spectroscopic implication in smart plant grow LEDs. Eu<sup>3+</sup> activated series of Bi<sub>4</sub>Si<sub>3</sub>O<sub>12</sub> phosphor have been prepared via traditional solid-state reaction method. Crystal structure and phase formation characterization is determined by using X-ray diffraction (XRD). Photoluminescence spectra of prepared phosphor shows broad excitation spectra ranging from 200 to 530 nm. The optimal Eu<sup>3+</sup> doping concentration observed at 3 mol%. Emission spectra observed under the excitation of 270 nm shows broad emission band at 469 nm along with other characteristic peak at 500 nm-710 nm. Observed emission peaks at 622 nm, 656 nm and 702 nm were chosen opt for plant grow lights. The phytochrome PFR absorption spectra of plants matches well with the emission band of our Eu<sup>3+</sup> doped BSO phosphor and can be considered as a viable choice for solid state lighting and plant grow light LEDs.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49742302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.1016/j.mlblux.2023.100214
R.T. Maske , A.N. Yerpude , S.J. Dhoble
Wet chemical technique was used for the Synthesis of Sm3+ doped Ca10(PO4)6Cl2 phosphor. The phase purity was analyzed by using X-Ray diffraction (XRD), which show that the synthesized phosphor was well matched with standard PDF file. Photoluminescence properties of Ca10(PO4)6Cl2:Sm3+ phosphor shows emission peak at 563 nm, 607 nm & 646 nm corresponding to 4G5/2→(6H5/2, 6H7/2, 6H9/2) transition of Sm3+ ions. The emission spectra of Ca10(PO4)6Cl2:Sm3+ phosphor was very intense and sharp. As per the current investigation of synthesized phosphor, it indicate that it is a used in solid state lighting devices and display application.
{"title":"Wet chemical synthesis of Sm3+ doped Ca10(PO4)6Cl2 phosphor for w-LED application","authors":"R.T. Maske , A.N. Yerpude , S.J. Dhoble","doi":"10.1016/j.mlblux.2023.100214","DOIUrl":"10.1016/j.mlblux.2023.100214","url":null,"abstract":"<div><p>Wet chemical technique was used for the Synthesis of Sm<sup>3+</sup> doped Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>Cl<sub>2</sub> phosphor. The phase purity was analyzed by using X-Ray diffraction (XRD), which show that the synthesized phosphor was well matched with standard PDF file. Photoluminescence properties of Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>Cl<sub>2</sub>:Sm<sup>3+</sup> phosphor shows emission peak at 563 nm, 607 nm & 646 nm corresponding to <sup>4</sup>G<sub>5/2</sub>→(<sup>6</sup>H<sub>5/2</sub>, <sup>6</sup>H<sub>7/2</sub>, <sup>6</sup>H<sub>9/2</sub>) transition of Sm<sup>3+</sup> ions. The emission spectra of Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>Cl<sub>2</sub>:Sm<sup>3+</sup> phosphor was very intense and sharp. As per the current investigation of synthesized phosphor, it indicate that it is a used in solid state lighting devices and display application.</p></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42183687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}