journal article·2026

Composition-driven optimization of amorphous Ge 1− x Se x for high-performance OTS selectors

Baoyi Zhou, Xiaoying Wan, Chengqi Zhang, Xiaoyan Li, Qingbo Wang, Hai Wang, Jun Liu, Hongxia Zhong

Journal of Materials Chemistry C· Volume 14· Issue 27
Publisher page

Abstract

First-principles simulations reveal optimal stability in Ge 1− x Se x ( x = 0.4 and 0.6) via Ge–Se bonding. The band gap increases linearly (0.58–0.81 eV) with Se content, enabling threshold voltage tuning and enhanced endurance for OTS selectors.
The source flagged this abstract for review. Check formulas and completeness against the original publication.
Source: crossref · Quality: needs review · Source record ↗
Source flags: short_text

Research context

OpenAlex topics: Phase-change materials and chalcogenides · Advanced Memory and Neural Computing · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China

Xincun Technology (Wuhan) Co., LTD, Wuhan 430075, China

Shenzhen Research Institute, China University of Geosciences, Shenzhen 518057, China

School of Integrated Circuits, Wuhan University, Wuhan 430072, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · National Natural Science Foundation of China-Guangdong Joint Fund

References (64)

Show source-provided references
1. Raoux · Chem. Rev. · 2010 · 110 · 24010.1021/cr900040x ↗
2. Wintersteller · Nat. Commun. · 2024 · 15 · 101110.1038/s41467-024-45327-7 ↗
3. Sebastian · J. Appl. Phys. · 2018 · 124 · 11110110.1063/1.5042413 ↗
4. Hegedüs · Nat. Mater. · 2008 · 7 · 39910.1038/nmat2157 ↗
5. Lee · Sci. Rep. · 2020 · 10 · 1367310.1038/s41598-020-70662-2 ↗
6. Zhu · MRS Bull. · 2019 · 44 · 71510.1557/mrs.2019.206 ↗
7. Noé · Sci. Adv. · 2020 · 6 · eaay283010.1126/sciadv.aay2830 ↗
8. Saitoh · Appl. Phys. Lett. · 2020 · 116 · 11210110.1063/1.5143631 ↗
9. Liu · J. Alloys Compd. · 2019 · 792 · 51010.1016/j.jallcom.2019.04.041 ↗
10. Thapa · J. Non-Cryst. Solids · 2023 · 601 · 12199810.1016/j.jnoncrysol.2022.121998 ↗
11. Lee · J. Korean Phys. Soc. · 2014 · 64 · 172610.3938/jkps.64.1726 ↗
12. Shin · Sci. Rep. · 2014 · 4 · 709910.1038/srep07099 ↗
13. Keukelier · J. Appl. Phys. · 2021 · 130 · 16510310.1063/5.0055861 ↗
14. Xu · InfoMat · 2025 · 7 · e7000610.1002/inf2.70006 ↗
15. Micoulaut · Phys. Rev. B: Condens. Matter Mater. Phys. · 2013 · 88 · 05420310.1103/PhysRevB.88.054203 ↗
16. Troles · Opt. Mater. · 2009 · 32 · 21210.1016/j.optmat.2009.07.024 ↗
17. B.Govoreanu , G. L.Donadio , K.Opsomer , W.Devulder , V. V.Afanas’ev , T.Witters , S.Clima , N. S.Avasarala , A.Redolfi , S.Kundu , et al. , Thermally stable integrated Se-based OTS selectors with >20 MA cm −2 current drive, >3.103 half-bias nonlinearity, tunable threshold voltage and excellent endurance, 2017 Symposium on VLSI Technology, T92 ( 2017 )
18. Clima · Phys. Status Solidi RRL · 2020 · 14 · 190067210.1002/pssr.201900672 ↗
19. N. S.Avasarala , G. L.Donadio , T.Witters , K.Opsomer , B.Govoreanu , A.Fantini , S.Clima , H.Oh , S.Kundu , W.Devulder , et al. , Half-threshold bias I off reduction down to n A range of thermally and electrically stable high-performance integrated OTS selector, obtained by Se enrichment and N-doping of thin GeSe layers, 2018 IEEE Symposium on VLSI Technology, 209 ( 2018 )
20. Kresse · J. Non-Cryst. Solids · 1995 · 192–193 · 22210.1016/0022-3093(95)00355-X ↗
21. Kresse · Phys. Rev. B: Condens. Matter Mater. Phys. · 1996 · 54 · 1116910.1103/PhysRevB.54.11169 ↗
22. Perdew · Phys. Rev. Lett. · 1996 · 77 · 386510.1103/PhysRevLett.77.3865 ↗
23. Nosé · J. Chem. Phys. · 1984 · 81 · 51110.1063/1.447334 ↗
24. Hoover · Phys. Rev. A · 1985 · 31 · 169510.1103/PhysRevA.31.1695 ↗
25. Zhang · J. Appl. Phys. · 2020 · 127 · 15530110.1063/5.0001912 ↗
26. Li · J. Mater. Chem. C · 2025 · 13 · 73510.1039/D4TC03586K ↗
27. Gu · Scr. Mater. · 2022 · 218 · 11483410.1016/j.scriptamat.2022.114834 ↗
28. Whab · Vacuum · 2025 · 240 · 11449110.1016/j.vacuum.2025.114491 ↗
29. Petri · Phys. Chem. Glasses · 2002 · 43C · 185
30. Tavanti · ACS Appl. Electron. Mater. · 2020 · 2 · 296110.1021/acsaelm.0c00581 ↗
31. Liu · J. Alloys Compd. · 2019 · 792 · 51010.1016/j.jallcom.2019.04.041 ↗
32. Jia · Nat. Commun. · 2020 · 11 · 463610.1038/s41467-020-18382-z ↗
33. Boolchand · Solid State Commun. · 1983 · 45 · 18310.1016/0038-1098(83)90372-1 ↗
34. Chandrasekhar · Solid State Commun. · 1976 · 18 · 150910.1016/0038-1098(76)90381-1 ↗
35. Chen · IEEE Electron Device Lett. · 2024 · 45 · 4410.1109/LED.2023.3336227 ↗
36. Akola · Phys. Rev. Lett. · 2008 · 100 · 20550210.1103/PhysRevLett.100.205502 ↗
37. Lin · Vacuum · 2023 · 213 · 11212710.1016/j.vacuum.2023.112127 ↗
38. Gu · J. Alloys Compd. · 2024 · 1005 · 17601110.1016/j.jallcom.2024.176011 ↗
39. Wang · Nanomaterials · 2021 · 11 · 302910.3390/nano11113029 ↗
40. Xia · J. Mater. Chem. A · 2017 · 5 · 1340010.1039/C7TA02109G ↗
41. Nelson · J. Comput. Chem. · 2020 · 41 · 193110.1002/jcc.26353 ↗
42. Dronskowski · J. Phys. Chem. · 1993 · 97 · 861710.1021/j100135a014 ↗
43. Nan · Sci. Adv. · 2025 · 11 · eadw451410.1126/sciadv.adw4514 ↗
44. Rao · Science · 2017 · 358 · 142310.1126/science.aao3212 ↗
45. Li · Sci. Rep. · 2019 · 9 · 186710.1038/s41598-018-37717-x ↗
46. El-Sayed · Phys. Rev. B: Condens. Matter Mater. Phys. · 2014 · 89 · 12520110.1103/PhysRevB.89.125201 ↗
47. Gao · Nanotechnology · 2016 · 27 · 50520710.1088/0957-4484/27/50/505207 ↗
48. Izmailov · Phys. Rev. Mater. · 2021 · 5 · 03441510.1103/PhysRevMaterials.5.034415 ↗
49. Ramo · Microelectron. Eng. · 2007 · 84 · 236210.1016/j.mee.2007.04.001 ↗
50. Mora-Fonz · Phys. Rev. B · 2020 · 102 · 05420510.1103/PhysRevB.102.054205 ↗
51. Kim · Appl. Phys. Lett. · 2023 · 123 · 07210210.1063/5.0153403 ↗
52. Gu · J. Mater. Chem. C · 2023 · 11 · 1547310.1039/D3TC02984K ↗
53. Ahn · Appl. Phys. Lett. · 2013 · 103 · 04290810.1063/1.4816349 ↗
54. Li · Thin Solid Films · 2021 · 734 · 13883710.1016/j.tsf.2021.138837 ↗
55. Xu · Adv. Funct. Mater. · 2023 · 33 · 230492610.1002/adfm.202304926 ↗
56. Kaewmeechai · Phys. Rev. B · 2025 · 111 · 03520310.1103/PhysRevB.111.035203 ↗
57. Konstantinou · Nat. Commun. · 2019 · 10 · 306510.1038/s41467-019-10980-w ↗
58. Guo · Appl. Phys. Lett. · 2019 · 115 · 16350310.1063/1.5125215 ↗
59. Lohani · Int. J. Mod. Phys. B · 2018 · 32 · 110.1142/S0217979218500765 ↗
60. Qiao · Phys. Chem. Chem. Phys. · 2024 · 26 · 951010.1039/D4CP00078A ↗
61. Wu · Nat. Commun. · 2023 · 14 · 069510.1038/s41467-023-36328-z ↗
62. Magomedov · Solid State Commun. · 2020 · 322 · 11406010.1016/j.ssc.2020.114060 ↗
63. Qiao · J. Mater. Chem. C · 2018 · 6 · 500110.1039/C8TC00549D ↗
64. Honcová · J. Non-Cryst. Solids · 2024 · 643 · 12318810.1016/j.jnoncrysol.2024.123188 ↗