Soft phonon modes from off-center Ge atoms lead to ultralow thermal conductivity and superior thermoelectric performance in n-type PbSe–GeSe

Luo, Zhong-Zhen; Hao, Shiqiang; Zhang, Xiaomi; Hua, Xia; Cai, Songting; Tan, Gangjian; Bailey, Trevor P.; Ma, Runchu; Uher, Ctirad; Wolverton, Chris; Dravid, Vinayak P.; Yan, Qingyu; Kanatzidis, Mercouri G.

doi:10.1039/c8ee01755g

Soft phonon modes from off-center Ge atoms lead to ultralow thermal conductivity and superior thermoelectric performance in n-type PbSe–GeSe

Journal Article · Mon Aug 13 00:00:00 EDT 2018 · Energy & Environmental Science

DOI:https://doi.org/10.1039/c8ee01755g· OSTI ID:1775350

^[1]; Hao, Shiqiang ^[2]; ^[2]; ^[2]; Cai, Songting ^[2]; ^[2]; ^[3]; Ma, Runchu ^[3]; ^[3]; ^[2]; ^[2]; ^[4]; ^[2]

Nanyang Technological Univ. (Singapore); Northwestern Univ., Evanston, IL (United States); Northwestern University
Northwestern Univ., Evanston, IL (United States)
Univ. of Michigan, Ann Arbor, MI (United States)
Nanyang Technological Univ. (Singapore)

Historically PbSe has underperformed PbTe in thermoelectric efficiency and has been regarded as an inferior relative to its telluride congener. However, the fifty-fold greater natural abundance of Se relative to Te makes PbSe appealing as a thermoelectric material. We report that the n-type GeSe-alloyed PbSe system achieves a peak figure of merit, ZT, of ~1.54 at 773 K and maintains ZT values above 1.2 over a broad temperature range from 623 K to 923 K. The highest performing composition is Sb-doped PbSe–12%GeSe, which exhibits an ultralow lattice thermal conductivity of ~0.36 W m^–1 K^–1 at 573 K, close to the limit of amorphous PbSe. Theoretical studies reveal that the alloyed Ge²⁺ atoms prefer to stay at off-center lattice positions, inducing low frequency modes. The Ge atoms also cause the unexpected behavior where the next nearest atom neighbors (6 Pb atoms) oscillate at lower frequencies than in pure PbSe leading to a large reduction of the Debye temperature and acoustic phonon velocity. The Pb_0.9955Sb_0.0045Se–12%GeSe system also shows Ge-rich precipitates and many aligned dislocations within its microstructure which also contribute to phonon scattering. The resultant average ZT (ZT_avg), a broad measure of the material's potential for functional thermoelectric modules, is 1.06 from 400 K to 800 K, the highest among all previously reported n- and p-type PbSe. Furthermore, this value matches or exceeds even those of the best n-type PbTe-based thermoelectric materials.

View Accepted Manuscript (DOE)

Research Organization:: Northwestern Univ., Evanston, IL (United States)

Sponsoring Organization:: Singapore MOE AcRF Tier 1; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-05CH11231; AC02-06CH11357; SC0014520

OSTI ID:: 1775350

Alternate ID(s):: OSTI ID: 1467542

Journal Information:: Energy & Environmental Science, Journal Name: Energy & Environmental Science Journal Issue: 11 Vol. 11; ISSN 1754-5692

Publisher:: Royal Society of ChemistryCopyright Statement

Country of Publication:: United States

Language:: English

References (75)

Analysis of Nanostructuring in High Figure-of-Merit Ag1- x Pb m SbTe2+ m Thermoelectric Materials Cook, Bruce A.; Kramer, Matthew J.; Harringa, Joel L. Advanced Functional Materials, Vol. 19, Issue 8 https://doi.org/10.1002/adfm.200801284	journal	April 2009
Microstructure-Lattice Thermal Conductivity Correlation in Nanostructured PbTe _0.7 S _0.3 Thermoelectric Materials He, Jiaqing; Girard, Steven N.; Kanatzidis, Mercouri G. Advanced Functional Materials, Vol. 20, Issue 5 https://doi.org/10.1002/adfm.200901905	journal	March 2010
Hierarchical Chemical Bonds Contributing to the Intrinsically Low Thermal Conductivity in α-MgAgSb Thermoelectric Materials Ying, Pingjun; Li, Xin; Wang, Yancheng Advanced Functional Materials, Vol. 27, Issue 1 https://doi.org/10.1002/adfm.201604145	journal	October 2016
Heavily Doped p-Type PbSe with High Thermoelectric Performance: An Alternative for PbTe Wang, Heng; Pei, Yanzhong; LaLonde, Aaron D. Advanced Materials, Vol. 23, Issue 11, p. 1366-1370 https://doi.org/10.1002/adma.201004200	journal	February 2011
Strong Phonon Scattering by Layer Structured PbSnS ₂ in PbTe Based Thermoelectric Materials He, Jiaqing; Girard, Steven N.; Zheng, Jin-Cheng Advanced Materials, Vol. 24, Issue 32 https://doi.org/10.1002/adma.201201565	journal	July 2012
Band Engineering of Thermoelectric Materials Pei, Yanzhong; Wang, Heng; Snyder, G. J. Advanced Materials, Vol. 24, Issue 46 https://doi.org/10.1002/adma.201202919	journal	October 2012
Compromise and Synergy in High-Efficiency Thermoelectric Materials Zhu, Tiejun; Liu, Yintu; Fu, Chenguang Advanced Materials, Vol. 29, Issue 14 https://doi.org/10.1002/adma.201605884	journal	March 2017
Extraordinary Thermoelectric Performance Realized in n-Type PbTe through Multiphase Nanostructure Engineering Zhang, Jian; Wu, Di; He, Dongsheng Advanced Materials, Vol. 29, Issue 39 https://doi.org/10.1002/adma.201703148	journal	August 2017
Nanoporous PbSe-SiO ₂ Thermoelectric Composites Wu, Chao-Feng; Wei, Tian-Ran; Sun, Fu-Hua Advanced Science, Vol. 4, Issue 11 https://doi.org/10.1002/advs.201700199	journal	August 2017
High Thermoelectric Figure of Merit in PbTe Alloys Demonstrated in PbTe-CdTe Pei, Yanzhong; LaLonde, Aaron D.; Heinz, Nicholas A. Advanced Energy Materials, Vol. 2, Issue 6 https://doi.org/10.1002/aenm.201100770	journal	April 2012
Subtle Roles of Sb and S in Regulating the Thermoelectric Properties of N-Type PbTe to High Performance Tan, Gangjian; Stoumpos, Constantinos C.; Wang, Si Advanced Energy Materials, Vol. 7, Issue 18 https://doi.org/10.1002/aenm.201700099	journal	May 2017
Concerted Rattling in CsAg ₅ Te ₃ Leading to Ultralow Thermal Conductivity and High Thermoelectric Performance Lin, Hua; Tan, Gangjian; Shen, Jin-Ni Angewandte Chemie International Edition, Vol. 55, Issue 38 https://doi.org/10.1002/anie.201605015	journal	August 2016
LOBSTER: A tool to extract chemical bonding from plane-wave based DFT: Tool to Extract Chemical Bonding Maintz, Stefan; Deringer, Volker L.; Tchougréeff, Andrei L. Journal of Computational Chemistry, Vol. 37, Issue 11 https://doi.org/10.1002/jcc.24300	journal	February 2016
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set Kresse, G.; Furthmüller, J. Computational Materials Science, Vol. 6, Issue 1, p. 15-50 https://doi.org/10.1016/0927-0256(96)00008-0	journal	July 1996
Upper crustal abundances of trace elements: A revision and update Hu, Zhaochu; Gao, Shan Chemical Geology, Vol. 253, Issue 3-4 https://doi.org/10.1016/j.chemgeo.2008.05.010	journal	August 2008
Energy harvesting, reuse and upgrade to reduce primary energy usage in the USA Rattner, Alexander S.; Garimella, Srinivas Energy, Vol. 36, Issue 10 https://doi.org/10.1016/j.energy.2011.07.047	journal	October 2011
High performance bulk thermoelectrics via a panoscopic approach He, Jiaqing; Kanatzidis, Mercouri G.; Dravid, Vinayak P. Materials Today, Vol. 16, Issue 5 https://doi.org/10.1016/j.mattod.2013.05.004	journal	May 2013
Computational Prediction of High Thermoelectric Performance in Hole Doped Layered GeSe Hao, Shiqiang; Shi, Fengyuan; Dravid, Vinayak P. Chemistry of Materials, Vol. 28, Issue 9 https://doi.org/10.1021/acs.chemmater.6b01164	journal	April 2016
Quaternary Chalcogenide Semiconductors with 2D Structures: Rb ₂ ZnBi ₂ Se ₅ and Cs ₆ Cd ₂ Bi ₈ Te ₁₇ Zhao, Jing; Hao, Shiqiang; Islam, Saiful M. Inorganic Chemistry, Vol. 57, Issue 15 https://doi.org/10.1021/acs.inorgchem.8b01383	journal	July 2018
Molten salt synthesis and properties of three new solid-state ternary bismuth chalcogenides, .beta.-CsBiS2, .gamma.-CsBiS2, and K2Bi8Se13 McCarthy, Timothy J.; Ngeyi, Stanley Pierre; Liao, Ju Hsiou Chemistry of Materials, Vol. 5, Issue 3 https://doi.org/10.1021/cm00027a016	journal	March 1993
Nanostructured Thermoelectrics: The New Paradigm? ^† Kanatzidis, Mercouri G. Chemistry of Materials, Vol. 22, Issue 3 https://doi.org/10.1021/cm902195j	journal	February 2010
Crystal orbital Hamilton populations (COHP): energy-resolved visualization of chemical bonding in solids based on density-functional calculations Dronskowski, Richard; Bloechl, Peter E. The Journal of Physical Chemistry, Vol. 97, Issue 33 https://doi.org/10.1021/j100135a014	journal	August 1993
Spinodal Decomposition and Nucleation and Growth as a Means to Bulk Nanostructured Thermoelectrics: Enhanced Performance in Pb _1- _x Sn _x Te−PbS Androulakis, John; Lin, Chia-Her; Kong, Hun-Jin Journal of the American Chemical Society, Vol. 129, Issue 31 https://doi.org/10.1021/ja071875h	journal	August 2007
Single-Crystal Colloidal Nanosheets of GeS and GeSe Vaughn, Dimitri D.; Patel, Romesh J.; Hickner, Michael A. Journal of the American Chemical Society, Vol. 132, Issue 43 https://doi.org/10.1021/ja107520b	journal	October 2010
Nanostructures Boost the Thermoelectric Performance of PbS Johnsen, Simon; He, Jiaqing; Androulakis, John Journal of the American Chemical Society, Vol. 133, Issue 10 https://doi.org/10.1021/ja109138p	journal	March 2011
Thermoelectrics from Abundant Chemical Elements: High-Performance Nanostructured PbSe–PbS Androulakis, John; Todorov, Iliya; He, Jiaqing Journal of the American Chemical Society, Vol. 133, Issue 28 https://doi.org/10.1021/ja203022c	journal	July 2011
High Performance Na-doped PbTe–PbS Thermoelectric Materials: Electronic Density of States Modification and Shape-Controlled Nanostructures Girard, Steven N.; He, Jiaqing; Zhou, Xiaoyuan Journal of the American Chemical Society, Vol. 133, Issue 41 https://doi.org/10.1021/ja206380h	journal	October 2011
Heavy Doping and Band Engineering by Potassium to Improve the Thermoelectric Figure of Merit in p-Type PbTe, PbSe, and PbTe _{1– y} Se _y Zhang, Qian; Cao, Feng; Liu, Weishu Journal of the American Chemical Society, Vol. 134, Issue 24 https://doi.org/10.1021/ja301245b	journal	June 2012
Raising the Thermoelectric Performance of p-Type PbS with Endotaxial Nanostructuring and Valence-Band Offset Engineering Using CdS and ZnS Zhao, Li-Dong; He, Jiaqing; Hao, Shiqiang Journal of the American Chemical Society, Vol. 134, Issue 39 https://doi.org/10.1021/ja306527n	journal	September 2012
High-Performance Tellurium-Free Thermoelectrics: All-Scale Hierarchical Structuring of p-Type PbSe–MSe Systems (M = Ca, Sr, Ba) Lee, Yeseul; Lo, Shih-Han; Androulakis, John Journal of the American Chemical Society, Vol. 135, Issue 13 https://doi.org/10.1021/ja400069s	journal	March 2013
High Thermoelectric Performance via Hierarchical Compositionally Alloyed Nanostructures Zhao, Li-Dong; Hao, Shiqiang; Lo, Shih-Han Journal of the American Chemical Society, Vol. 135, Issue 19 https://doi.org/10.1021/ja403134b	journal	May 2013
Exploring Resonance Levels and Nanostructuring in the PbTe−CdTe System and Enhancement of the Thermoelectric Figure of Merit Ahn, Kyunghan; Han, Mi-Kyung; He, Jiaqing Journal of the American Chemical Society, Vol. 132, Issue 14 https://doi.org/10.1021/ja910762q	journal	April 2010
High Thermoelectric Performance in Electron-Doped AgBi ₃ S ₅ with Ultralow Thermal Conductivity Tan, Gangjian; Hao, Shiqiang; Zhao, Jing Journal of the American Chemical Society, Vol. 139, Issue 18 https://doi.org/10.1021/jacs.7b02399	journal	May 2017
Remarkable Roles of Cu To Synergistically Optimize Phonon and Carrier Transport in n-Type PbTe-Cu ₂ Te Xiao, Yu; Wu, Haijun; Li, Wei Journal of the American Chemical Society, Vol. 139, Issue 51 https://doi.org/10.1021/jacs.7b11662	journal	December 2017
Convergence of electronic bands for high performance bulk thermoelectrics Pei, Yanzhong; Shi, Xiaoya; LaLonde, Aaron Nature, Vol. 473, Issue 7345, p. 66-69 https://doi.org/10.1038/nature09996	journal	May 2011
High-performance bulk thermoelectrics with all-scale hierarchical architectures Biswas, Kanishka; He, Jiaqing; Blum, Ivan D. Nature, Vol. 489, Issue 7416, p. 414-418 https://doi.org/10.1038/nature11439	journal	September 2012
Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals Zhao, Li-Dong; Lo, Shih-Han; Zhang, Yongsheng Nature, Vol. 508, Issue 7496, p. 373-377 https://doi.org/10.1038/nature13184	journal	April 2014
Strained endotaxial nanostructures with high thermoelectric figure of merit Biswas, Kanishka; He, Jiaqing; Zhang, Qichun Nature Chemistry, Vol. 3, Issue 2 https://doi.org/10.1038/nchem.955	journal	January 2011
Vacancy-induced dislocations within grains for high-performance PbSe thermoelectrics Chen, Zhiwei; Ge, Binghui; Li, Wen Nature Communications, Vol. 8, Issue 1 https://doi.org/10.1038/ncomms13828	journal	January 2017
Contrasting role of antimony and bismuth dopants on the thermoelectric performance of lead selenide Lee, Yeseul; Lo, Shih-Han; Chen, Changqiang Nature Communications, Vol. 5, Issue 1 https://doi.org/10.1038/ncomms4640	journal	May 2014
Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide Zhang, Qinyong; Wang, Hui; Liu, Weishu Energy Environ. Sci., Vol. 5, Issue 1, p. 5246-5251 https://doi.org/10.1039/C1EE02465E	journal	January 2012
Resonant levels in bulk thermoelectric semiconductors Heremans, Joseph P.; Wiendlocha, Bartlomiej; Chamoire, Audrey M. Energy Environ. Sci., Vol. 5, Issue 2 https://doi.org/10.1039/C1EE02612G	journal	January 2012
The panoscopic approach to high performance thermoelectrics Zhao, Li-Dong; Dravid, Vinayak P.; Kanatzidis, Mercouri G. Energy Environ. Sci., Vol. 7, Issue 1 https://doi.org/10.1039/C3EE43099E	journal	January 2014
Tuning bands of PbSe for better thermoelectric efficiency Wang, Heng; Gibbs, Zachary M.; Takagiwa, Yoshiki Energy Environ. Sci., Vol. 7, Issue 2 https://doi.org/10.1039/C3EE43438A	journal	January 2014
Measuring thermoelectric transport properties of materials Borup, Kasper A.; de Boor, Johannes; Wang, Heng Energy & Environmental Science, Vol. 8, Issue 2 https://doi.org/10.1039/C4EE01320D	journal	January 2015
Large enhancement of thermoelectric properties in n-type PbTe via dual-site point defects Fu, Liangwei; Yin, Meijie; Wu, Di Energy & Environmental Science, Vol. 10, Issue 9 https://doi.org/10.1039/C7EE01871A	journal	January 2017
Deep defect level engineering: a strategy of optimizing the carrier concentration for high thermoelectric performance Zhang, Qian; Song, Qichen; Wang, Xinyu Energy & Environmental Science, Vol. 11, Issue 4 https://doi.org/10.1039/C8EE00112J	journal	January 2018
All-scale hierarchical thermoelectrics: MgTe in PbTe facilitates valence band convergence and suppresses bipolar thermal transport for high performance Zhao, L. D.; Wu, H. J.; Hao, S. Q. Energy & Environmental Science, Vol. 6, Issue 11 https://doi.org/10.1039/c3ee42187b	journal	January 2013
Characterization of Lorenz number with Seebeck coefficient measurement Kim, Hyun-Sik; Gibbs, Zachary M.; Tang, Yinglu APL Materials, Vol. 3, Issue 4 https://doi.org/10.1063/1.4908244	journal	April 2015
Weak electron-phonon coupling contributing to high thermoelectric performance in n-type PbSe Wang, H.; Pei, Y.; LaLonde, A. D. Proceedings of the National Academy of Sciences, Vol. 109, Issue 25 https://doi.org/10.1073/pnas.1111419109	journal	May 2012
High thermoelectric performance by resonant dopant indium in nanostructured SnTe Zhang, Q.; Liao, B.; Lan, Y. Proceedings of the National Academy of Sciences, Vol. 110, Issue 33, p. 13261-13266 https://doi.org/10.1073/pnas.1305735110	journal	July 2013
Exploring the doping effects of Ag in p-type PbSe compounds with enhanced thermoelectric performance Wang, Shanyu; Zheng, Gang; Luo, Tingting Journal of Physics D: Applied Physics, Vol. 44, Issue 47 https://doi.org/10.1088/0022-3727/44/47/475304	journal	November 2011
The Scattering of Low-Frequency Lattice Waves by Static Imperfections Klemens, P. G. Proceedings of the Physical Society. Section A, Vol. 68, Issue 12 https://doi.org/10.1088/0370-1298/68/12/303	journal	December 1955
Inhomogeneous Electron Gas Hohenberg, P.; Kohn, W. Physical Review, Vol. 136, Issue 3B, p. B864-B871 https://doi.org/10.1103/PhysRev.136.B864	journal	November 1964
Self-Consistent Equations Including Exchange and Correlation Effects Kohn, W.; Sham, L. J. Physical Review, Vol. 140, Issue 4A, p. A1133-A1138 https://doi.org/10.1103/PhysRev.140.A1133	journal	November 1965
Structure of the second valence band in PbTe Sitter, H.; Lischka, K.; Heinrich, H. Physical Review B, Vol. 16, Issue 2 https://doi.org/10.1103/PhysRevB.16.680	journal	July 1977
Self-interaction correction to density-functional approximations for many-electron systems Perdew, J. P.; Zunger, Alex Physical Review B, Vol. 23, Issue 10, p. 5048-5079 https://doi.org/10.1103/PhysRevB.23.5048	journal	May 1981
Soft self-consistent pseudopotentials in a generalized eigenvalue formalism Vanderbilt, David Physical Review B, Vol. 41, Issue 11, p. 7892-7895 https://doi.org/10.1103/PhysRevB.41.7892	journal	April 1990
Lower limit to the thermal conductivity of disordered crystals Cahill, David G.; Watson, S. K.; Pohl, R. O. Physical Review B, Vol. 46, Issue 10, p. 6131-6140 https://doi.org/10.1103/PhysRevB.46.6131	journal	September 1992
Ab initiomolecular dynamics for liquid metals Kresse, G.; Hafner, J. Physical Review B, Vol. 47, Issue 1, p. 558-561 https://doi.org/10.1103/PhysRevB.47.558	journal	January 1993
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium Kresse, G.; Hafner, J. Physical Review B, Vol. 49, Issue 20, p. 14251-14269 https://doi.org/10.1103/PhysRevB.49.14251	journal	May 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set Kresse, G.; Furthmüller, J. Physical Review B, Vol. 54, Issue 16, p. 11169-11186 https://doi.org/10.1103/PhysRevB.54.11169	journal	October 1996
Thermal conductivity of germanium crystals with different isotopic compositions Asen-Palmer, M.; Bartkowski, K.; Gmelin, E. Physical Review B, Vol. 56, Issue 15 https://doi.org/10.1103/PhysRevB.56.9431	journal	October 1997
Estimation of the isotope effect on the lattice thermal conductivity of group IV and group III-V semiconductors Morelli, D. T.; Heremans, J. P.; Slack, G. A. Physical Review B, Vol. 66, Issue 19 https://doi.org/10.1103/PhysRevB.66.195304	journal	November 2002
First-principles indicators of metallicity and cation off-centricity in the IV-VI rocksalt chalcogenides of divalent Ge, Sn, and Pb Waghmare, U. V.; Spaldin, N. A.; Kandpal, H. C. Physical Review B, Vol. 67, Issue 12 https://doi.org/10.1103/PhysRevB.67.125111	journal	March 2003
Electronic inhomogeneity and Ag:Sb imbalance of Ag 1 − y Pb 18 Sb 1 + z Te 20 high-performance thermoelectrics elucidated by T 125 e and P 207 b NMR Levin, E. M.; Cook, B. A.; Ahn, K. Physical Review B, Vol. 80, Issue 11 https://doi.org/10.1103/PhysRevB.80.115211	journal	September 2009
High-temperature thermoelectric performance of heavily doped PbSe Parker, David; Singh, David J. Physical Review B, Vol. 82, Issue 3, Article No. 035204 https://doi.org/10.1103/PhysRevB.82.035204	journal	July 2010
First-principles description of anomalously low lattice thermal conductivity in thermoelectric Cu-Sb-Se ternary semiconductors Zhang, Yongsheng; Skoug, Eric; Cain, Jeffrey Physical Review B, Vol. 85, Issue 5 https://doi.org/10.1103/PhysRevB.85.054306	journal	February 2012
Understanding the role and interplay of heavy-hole and light-hole valence bands in the thermoelectric properties of PbSe Chasapis, Thomas C.; Lee, Yeseul; Hatzikraniotis, Euripides Physical Review B, Vol. 91, Issue 8 https://doi.org/10.1103/PhysRevB.91.085207	journal	February 2015
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces Perdew, John P.; Ruzsinszky, Adrienn; Csonka, Gábor I. Physical Review Letters, Vol. 100, Issue 13 https://doi.org/10.1103/PhysRevLett.100.136406	journal	April 2008
Cubic AgPb_mSbTe_2+m: Bulk Thermoelectric Materials with High Figure of Merit Hsu, Kuei Fang; Loo, Sim; Guo, Fu Science, Vol. 303, Issue 5659, p. 818-821 https://doi.org/10.1126/science.1092963	journal	February 2004
Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States Heremans, J. P.; Jovovic, V.; Toberer, E. S. Science, Vol. 321, Issue 5888, p. 554-557 https://doi.org/10.1126/science.1159725	journal	July 2008
Ultrahigh power factor and thermoelectric performance in hole-doped single-crystal SnSe Zhao, L.-D.; Tan, G.; Hao, S. Science, Vol. 351, Issue 6269, p. 141-144 https://doi.org/10.1126/science.aad3749	journal	November 2015
3D charge and 2D phonon transports leading to high out-of-plane ZT in n-type SnSe crystals Chang, Cheng; Wu, Minghui; He, Dongsheng Science, Vol. 360, Issue 6390 https://doi.org/10.1126/science.aaq1479	journal	May 2018
Thermodynamische Eigenschaften von IV–VI-Verbindungen: Bleichalkogenide / Thermodynamic Properties of IV–VI-Compounds: Leadchalcogenides Blachnik, Roger; Igel, Rudolf Zeitschrift für Naturforschung B, Vol. 29, Issue 9-10 https://doi.org/10.1515/znb-1974-9-1012	journal	October 1974

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