Pressure engineering of van der Waals compound RhI; Bandgap narrowing, metallization, and remarkable enhancement of photoelectric activity

Fang, Y.*; Kong, L.*; Wang, R.*; Zhang, Z.*; Li, Z.*; Wu, Y.*; Bu, K.*; Liu, X.*; Yan, S.*; Hattori, Takanori; et al.

Materials Today Physics (Internet), 34, p.101083_1 - 101083_7, 2023/05

https://doi.org/10.1016/j.mtphys.2023.101083

The layered van der Waals halides are particularly sensitive to external pressure, suggesting a feasible route to pinpoint their structure with extraordinary behavior. However, a very sensitive pressure response usually lead to a detrimental phase transition and/or lattice distortion, making the approach of materials manipulation in a continuous manner remain challenging. Here, the extremely weak interlayer coupling and high tunability of layered RhI crystals are observed. A pressure-driven phase transition occurs at a moderate pressure of 5 GPa, interlinking to a change of layer stack mode. Strikingly, such a phase transition does not affect the tendency of quasi-linear bandgap narrowing, and a metallization with an ultra-broad tunability of 1.3 eV redshift is observed at higher pressures. Moreover, the carrier concentration increases by 4 orders of magnitude at 30 GPa, and the photocurrent enhances by 5 orders of magnitude at 7.8 GPa. These findings create new opportunities for exploring, tuning, and understanding the van der Waals halides by harnessing their unusual feature of a layered structure, which is promising for future devices based on materials-by-design that are atomically thin.

Self-mediated growth of single-crystal and entirely(111)-oriented C films on alkali halide substrates

Dai, Z.*; Naramoto, Hiroshi; Narumi, Kazumasa; Yamamoto, Shunya; Miyashita, Atsumi

Applied Physics Letters, 74(12), p.1686 - 1688, 1999/03

https://doi.org/10.1063/1.123655

no abstracts in English

Desorption of molecular and atomic fragment-ions from solid CCl and SiCl by resonant photoexcitation at chlorine K-edge

Baba, Yuji; Yoshii, Kenji; Sasaki, Teikichi

Surface Science, 376(1-3), p.330 - 338, 1997/00

https://doi.org/10.1016/S0039-6028(96)01315-5

no abstracts in English

A Study of the Experimental Method of Chlorine Treatment of Raw Drinking Water

; ; ;

JAERI-M 83-149, 50 Pages, 1983/09

JAERI-M-83-149.pdf:1.76MB

no abstracts in English

Structures of molten alkali halides

Oono, Hideo; Furukawa, Kazuo

Nihon Kagakkai-Shi, (6), p.934 - 941, 1982/00

no abstracts in English

Thermochemical and Radiation Chemical Hydrogen Production

; Ikezoe, Yasumasa; Shimizu, Saburo; Nakajima, Hayato

JAERI-M 8490, 17 Pages, 1979/10

JAERI-M-8490.pdf:0.55MB

no abstracts in English

Studies on Closed-Cycle for Hydrogen ProductionIII Progress Report for the F.Y.1977

; Ikezoe, Yasumasa; Shimizu, Saburo; Nakajima, Hayato;

JAERI-M 7927, 43 Pages, 1978/10

JAERI-M-7927.pdf:1.33MB

no abstracts in English

Monatomic liquids and simple ionic liquids; introduction to inorganic liquid structural chemistry

Furukawa, Kazuo;

Bussei Kenkyu, 19(5), p.B35 - B45, 1973/05

no abstracts in English

Effect of Channeling on the Lattice Defects Produced by Proton Irradiation in Alkali Halide Crystals

; *; *; *; *

Phys.Status Solide, 9, p.323 - 332, 1972/00

no abstracts in English

Lattice dynamics of alkali halides

A.D.N.Woods*; B.N.Brockhouse*; M.Sakamoto*; R.N.Sinclair*; W.Cochran*

Conf.on Neutron Diffraction in Relation to Magnetism and Chemical Bonding,Gatlinburg,Tenn.,Apr.20-22, p.0 - 0, 1960/00

no abstracts in English