Emerging high environmental resistance of near-infrared (NIR) photodetectors requires the merits of mechanical and thermal robustness with a wide operation bandwidth. Here, FeCoNiCuZnAl-based high-entropy layered double hydroxides (LDHs), directly deposited on a Si nanowire/Si substrate via a solution synthesis process, are presented, which illustrates an outperforming NIR detectivity of 2.73 x 1011 Jones, and a rise/fall response time of 11/34 mu s under 940-nm light illumination, with an adaptive frequency bandwidth of up to 3 x 104 Hz and a suppressed flicker noise of 3.1 x 10-13 A Hz-1/2. The remarkable mechanical, chemical and thermal resistances of such designs were further validated, originating from the effects of entropy-driven stabilization that mitigated site-specific perturbations and maintained the structural integrity of LDH frameworks. The results merited the top-performing designs, which dictated the technological implementation of NIR photodetectors.
- High-entropy layered double hydroxides enabled wide-bandwidth near-infrared photodetection with viable environmental resistance
- Kent-Tien Liang - National Cheng Kung UniversityLi-Mei Cheng - Natl Cheng Kung Univ, Program Semicond Packaging & Testing, Tainan 70101, TaiwanKai-Lin Hsiao - National Cheng Kung UniversityPo-Hsuan Hsiao - Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, TaiwanYi-Ting Li - Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, TaiwanChia-Yun Chen - Natl Cheng Kung Univ, Program Semicond Packaging & Testing, Tainan 70101, Taiwan
- Royal Soc Chemistry
- 12
- NSTC 113-2628-E-006 -016 -MY4 / National Science and Technology Council
- Journal article
- 23/02/2026
- Materials horizons, Vol.13(4), pp.1766-1776
- English