One-step synthesis of Cu-doped Pb10(PO4)6Cl2 apatite: a wide-gap semiconductor

被引:0
作者
Yang, Wuzhang [1 ,2 ,3 ]
Pang, Zhihong [1 ]
Ren, Zhi [1 ,2 ]
机构
[1] Westlake Univ, Sch Sci, Dept Phys, 18 Shilongshan Rd, Hangzhou 310024, Zhejiang, Peoples R China
[2] Westlake Inst Adv Study, Inst Nat Sci, 18 Shilongshan Rd, Hangzhou 310024, Zhejiang, Peoples R China
[3] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
来源
INORGANIC CHEMISTRY FRONTIERS | 2024年 / 11卷 / 18期
关键词
CRYSTAL-STRUCTURE; IONS;
D O I
10.1039/d4qi01140f
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The recent claim of potential room-temperature superconductivity in Pb10-xCux(PO4)(6)O has attracted widespread attention. However, the signature of superconductivity is later attributed to the Cu2S impurity formed during the multiple-step synthesis procedure. Here we report a simple one-step approach for synthesizing single-phase chloride analogue Cu-doped Pb-10(PO4)(6)Cl-2 using PbO, PbCl2, CuCl2, and NH4H2PO4 as starting materials. Irrespective of the initial stoichiometry, Cu doping always leads to a lattice expansion in Pb-10(PO4)(6)Cl-2. This indicates that Cu prefers to reside in the hexagonal channels rather than as substitutes at the Pb sites, and the chemical formula is expressed as Pb-10(PO4)(6)CuxCl2. All the Pb-10(PO4)(6)CuxCl2 (0 <= x <= 1.0) samples are found to be semiconductors with wide band gaps of 4.46-4.59 eV, and the Cu-doped ones (x = 0.5 and 1.0) exhibit a paramagnetic behavior without any phase transition between 400 and 1.8 K. Our study calls for a reinvestigation of the Cu location in Pb10-xCux(PO4)(6)O and supports the absence of superconductivity in this oxyapatite.
引用
收藏
页码:5858 / 5865
页数:9
相关论文
共 25 条
[1]  
Carrillo-Cabrera W, 1999, Z ANORG ALLG CHEM, V625, P183, DOI 10.1002/(SICI)1521-3749(199902)625:2<183::AID-ZAAC183>3.0.CO
[2]  
2-6
[3]   Direct optical band gap measurement in polycrystalline semiconductors: A critical look at the Tauc method [J].
Dolgonos, Alex ;
Mason, Thomas O. ;
Poeppelmeier, Kenneth R. .
JOURNAL OF SOLID STATE CHEMISTRY, 2016, 240 :43-48
[4]   Colloquium: High pressure and road to room temperature superconductivity [J].
Gor'kov, Lev P. ;
Kresin, Vladimir Z. .
REVIEWS OF MODERN PHYSICS, 2018, 90 (01)
[5]   Ferromagnetic half levitation of LK-99-like synthetic samples [J].
Guo, Kaizhen ;
Li, Yuan ;
Jia, Shuang .
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2023, 66 (10)
[6]   Synthesis, transport and magnetic properties of Cu-doped apatite Pb10_XCuX(PO4)6O [J].
Hou, Qiang ;
Wei, Wei ;
Zhou, Xin ;
Wang, Xinyue ;
Wang, Tony ;
Sun, Yue ;
Shi, Zhixiang .
MATTER, 2023, 6 (12) :4408-4418
[7]   XPS detection of unusual Cu(II) to Cu(I) transition on the surface of complexes with redox-active ligands [J].
Ivanova, T. M. ;
Maslakov, K. I. ;
Sidorov, A. A. ;
Kiskin, M. A. ;
Linko, R. V. ;
Savilov, S. V. ;
Lunin, V. V. ;
Eremenko, I. L. .
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2020, 238
[8]   Synthesis, crystal structure and properties of calcium and barium hydroxyapatites containing copper ions in hexagonal channels [J].
Karpov, AS ;
Nuss, J ;
Jansen, M ;
Kazin, PE ;
Tretyakov, YD .
SOLID STATE SCIENCES, 2003, 5 (09) :1277-1283
[9]   Crystal structure and properties of strontium phosphate apatite with oxocuprate ions in hexagonal channels [J].
Kazin, PE ;
Karpov, AS ;
Jansen, M ;
Nuss, J ;
Tretyakov, YD .
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2003, 629 (02) :344-352
[10]   Synthesis of possible room temperature superconductor LK-99: Pb9Cu(PO4)6O [J].
Kumar, Kapil ;
Karn, N. K. ;
Awana, V. P. S. .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2023, 36 (10)