Details

Autor(en) / Beteiligte

• Zhai, Fuwan
• Li, Baoyu
• Yang, Liangwei
• Dai, Xing
• Liang, Chengyu
• Xia, Chuanqin
• Chai, Zhifang
• Wang, Yaxing
• Wang, Shuao

Titel

Charge Transport and Photoconductivity in a Hybrid Uranium(IV) Halide Perovskite

Ist Teil von

• Inorganic chemistry, 2022-08, Vol.61 (34), p.13256-13260

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Hybrid metal halide perovskites are extensively synthesized using p- and d-elements. However, the properties of hybrid halide perovskites involving 5f-elements are still elusive. Herein, we first report the semiconductive property of a uranium-bearing hybrid halide perovskite, [N­(C2H5)4]2UCl6 (EAUCl). Single crystal X-ray crystallography demonstrates that EAUCl adopts a zero-dimensional molecular structure consisting of isolated [UCl6]2– anions and organic cations. The intrinsically semiconductive property endows EAUCl with obvious charge transport and photoconductivity, with a high carrier mobility lifetime (μτ) product of 9.91 × 10–4 cm2/V and a photocurrent on–off ratio of 380 under X-ray excitation. Theoretical calculations corroborate that the U 5f orbitals are involved in electron transitions and the formation of band structure.