Le He

Jun 5, 2024 | nature.com | Guanshu Zhao |Juan Manuel Restrepo-Flórez |Andrew Wang |Chengliang Mao |Chaoran Li |Guangming Cai | +8 more

AbstractIndustrial-scale ethylene production occurs primarily by fossil-powered steam cracking of ethane—a high-temperature, high-energy process. An alternative, photochemical, pathway powered by sunlight and operating under ambient conditions could potentially mitigate some of the associated greenhouse gas emissions. Here we report the photocatalytic dehydrogenation of ethane to ethylene and hydrogen using LaMn1−xCuxO3.

Jan 5, 2024 | opg.optica.org | Yang Chen |Le He |Nengli Dai |Jinyan Li

Bismuth-doped germanosilicate fiber (BGSF), the active media of fiber amplifiers, has attracted widespread attention. Here, we report a BGSF with a high bismuth concentration of 0.075 wt. % and achieve high-efficiency E + S-band amplification, which was prepared by the modified chemical vapor deposition (MCVD) process. The small signal absorption (SSA) and unsaturated loss (UL) of BGSF at 1310 nm are 1.32 and 0.11 dB/m, respectively.

Dec 19, 2023 | opg.optica.org | Yang Chen |Le He |Nengli Dai |Jinyan Li

Extending the gain bandwidth of L-band optical fiber amplifier has provoked a widespread interest. To date, achieving a high-efficiency extended L-band amplification remains a challenge. Here, we report a cladding-pumped Er/Yb co-doped alumino-phosphosilicate fiber, prepared by the modified chemical vapor deposition process.

Jun 24, 2023 | nature.com | Feipeng Zhao |Jiatang Chen |Renfei Feng |Mohsen Shakouri |Yang Zhao |Le He | +2 more

AbstractSolid electrolyte is vital to ensure all-solid-state batteries with improved safety, long cyclability, and feasibility at different temperatures. Herein, we report a new family of amorphous solid electrolytes, xLi2O-MCly (M = Ta or Hf, 0.8 ≤ x ≤ 2, y = 5 or 4).