Heavily Er3+-doped TeO2–BaF2–La2O3–LaF3 (TBLL) glasses with low hydroxyl absorption (αOH−≈0.025cm−1 ) and high glass transition temperatures (Tg437℃) were prepared. The Raman spectra and differential scanning calorimetry (DSC) curves were measured to characterize the structural...

Regional carbon emission efficiency has differentiated characteristics under different economic development stages and patterns, and it is significant to identify such characteristics and formulate corresponding policies for high-quality regional development. Based on input-output data related...