| Jahn-teller effect on framework flexibility of hybrid organic-inorganic perovskites | |
| Gui, Di1,2; Ji, Lijun1,2; Muhammad, Azeem1,2; Li, Wei1,2; Cai, Weizhao3; Li, Yanchun4; Li, Xiaodong4; Wu, Xiang5; Lu, Peixiang1,2,6 | |
| 刊名 | Journal of physical chemistry letters
 |
| 2018-02-15 | |
| 卷号 | 9期号:4页码:751-755 |
| ISSN号 | 1948-7185 |
| DOI | 10.1021/acs.jpclett.7b03229 |
| 通讯作者 | Li, wei(wl276@hust.edu.cn) ; Cai, weizhao(wzhcai@gmail.com) ; Wu, xiang(wuxiang@cug.edu.cn) ; Lu, peixiang(lupeixiang@hust.edu.cn) |
| 英文摘要 | Here we study the jahn-teller (jt) effect on framework flexibility of two analogous hybrid organic-inorganic perovskites, [c(nh2)(3)][zn(hcoo)(3)] (1-zn) and [c(nh2)(3)][cu(hcoo)(3)] (2-cu). single-crystal nanoindentation measurements show that the elastic moduli and hardnesses of 1-zn are up to similar to 52.0% and similar to 25.0% greater than those of the jt active 2-cu. temperature-dependent x-ray diffraction measurements indicate that the thermal expansion along the b-axis is switched from negative to positive by replacing zn2+ with cu2+ on the b-site. these stark distinctions in framework flexibility are primarily attributed to the similar to 10.0% elongation of cu-o bonds induced by the jt effect and associated alterations in octahedral tilting and hydrogen-bonding. our results demonstrate the prominence of the jt effect in the emerging hybrid perovskites and highlight the possibilities of tuning materials' properties using orbital order. |
| WOS关键词 | MECHANICAL-PROPERTIES ; MOLECULAR-CRYSTALS ; NANOINDENTATION ; FERROELECTRICITY |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000425569300012 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177964 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Li, Wei; Cai, Weizhao; Wu, Xiang; Lu, Peixiang |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China 2.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China 3.Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 5.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China 6.Wuhan Inst Technol, Lab Opt Informat Technol, Wuhan 430205, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gui, Di,Ji, Lijun,Muhammad, Azeem,et al. Jahn-teller effect on framework flexibility of hybrid organic-inorganic perovskites[J]. Journal of physical chemistry letters,2018,9(4):751-755. |
| APA | Gui, Di.,Ji, Lijun.,Muhammad, Azeem.,Li, Wei.,Cai, Weizhao.,...&Lu, Peixiang.(2018).Jahn-teller effect on framework flexibility of hybrid organic-inorganic perovskites.Journal of physical chemistry letters,9(4),751-755. |
| MLA | Gui, Di,et al."Jahn-teller effect on framework flexibility of hybrid organic-inorganic perovskites".Journal of physical chemistry letters 9.4(2018):751-755. |
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