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1
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Zienkiewicz JA, Kałduńska K, Fedoruk K, Barros dos Santos AJ, Stefanski M, Paraguassu W, Muzioł TM, Ptak M. Luminescence and Dielectric Switchable Properties of a 1D (1,1,1-Trimethylhydrazinium)PbI 3 Hybrid Perovskitoid. Inorg Chem 2022; 61:20886-20895. [PMID: 36520079 PMCID: PMC9795545 DOI: 10.1021/acs.inorgchem.2c03287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis and investigation of the physicochemical properties of a novel one-dimensional (1D) hybrid organic-inorganic perovskitoid templated by the 1,1,1-trimethylhydrazinium (Me3Hy+) cation are reported. (Me3Hy)[PbI3] crystallizes in the hexagonal P63/m symmetry and undergoes two phase transitions (PTs) during heating (cooling) at 322 (320) and 207 (202) K. X-ray diffraction data and temperature-dependent vibrational studies show that the second-order PT to the high-temperature hexagonal P63/mmc phase is associated with a weak change in entropy and is related to weak structural changes and different confinement of cations in the available space. The second PT to the low-temperature orthorhombic Pbca phase that corresponds to the high change in entropy and dielectric switching is associated with an ordering of the trimethylhydrazinium cations, re-arrangement and strengthening of hydrogen bonds, and slightly shifted lead-iodide octahedral chains. The high-pressure Raman data revealed two additional PTs, one between 2.8 and 3.2 GPa, related to the symmetry decrease, ordering of the cations, and inorganic chain distortion, and the other in the 6.4-6.8 GPa range related to the partial and reversible amorphization. Optical studies revealed that (Me3Hy)[PbI3] has a wide band gap (3.20 eV) and emits reddish-orange excitonic emission at low temperatures with an activation energy of 65 meV.
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Affiliation(s)
- Jan. A. Zienkiewicz
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422Wrocław, Poland,
| | - Karolina Kałduńska
- Department
of Biomedical and Polymer Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100Toruń, Poland
| | - Katarzyna Fedoruk
- Institute
of Physics, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370Wrocław, Poland
| | - Antonio J. Barros dos Santos
- Department
of Physics, Federal University of Pará, Campus do Guamá, Rua Augusto
Corrêa 01, Belém, 66075110Pará, Brazil
| | - Mariusz Stefanski
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422Wrocław, Poland
| | - Waldeci Paraguassu
- Department
of Physics, Federal University of Pará, Campus do Guamá, Rua Augusto
Corrêa 01, Belém, 66075110Pará, Brazil
| | - Tadeusz M. Muzioł
- Department
of Inorganic and Coordination Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100Toruń, Poland
| | - Maciej Ptak
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422Wrocław, Poland
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Babu Mukkamala S, Wang S. Supramolecular Organic Nanowires of 2,6‐Naphthalene Dicarboxylic Acid Observed in the Lamellar Space of Zn
3
(PO
4
)
4
and Zn
1.6
Co
1.4
(PO
4
)
4
Host Lattices. ChemistrySelect 2022. [DOI: 10.1002/slct.202202808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Saratchandra Babu Mukkamala
- Department of Chemistry GITAM School of Science GITAM (Deemed to be University) Visakhapatnam 530045, A.P. India
| | - Sue‐Lein Wang
- Department of Chemistry National Tsing-Hua University, Hsinchu Taiwan ROC
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3
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Li X, Wang X, Li Y, Qin F, Jiang Y, Wang L, Wang Y. AlInGaAs MQW Transceiver with Electro-optic Modulation Characteristics for Free-Space Optical Communication and Sensing. ACS OMEGA 2021; 6:23614-23620. [PMID: 34549159 PMCID: PMC8444322 DOI: 10.1021/acsomega.1c03865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Integrated transceivers with electro-optic modulation characteristics are valuable for free-space optical communications and sensing. We propose an AlInGaAs multiple quantum well (MQW) transceiver with electro-optic modulation characteristics over a broad spectral range. Two identical AlInGaAs MQW diodes on a single wafer are used to transmit and receive optical signals and provide obvious electro-optic modulation for broad-spectrum light. The photocurrent modulation ratio reaches 13.9 and 11.3 for white light and 1550 nm infrared light, respectively, with varying bias voltages. The transceiver can identify environmental changes and forward electrical signals with different frequencies in the form of superimposed optical signals.
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Affiliation(s)
- Xin Li
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
- Key
Lab of Broadband Wireless Communication and Sensor Network Technology
(Nanjing University of Posts and Telecommunications), Ministry of
Education, Nanjing 210003, China
| | - Xu Wang
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
| | - Yun Li
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
| | - Feifei Qin
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
| | - Yan Jiang
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
| | - Linning Wang
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
| | - Yongjin Wang
- Grünberg
Research Centre, Nanjing University of Posts
and Telecommunications, Nanjing 210003, China
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