铅卤钙钛矿薄膜因其优异的光电特性和简单的溶液生长工艺被认为是一种极具前景的激光增益介质材料。然而钙钛矿在空气中较差的稳定性制约了其进一步发展，尤其是激光产生需要高密度的激发，这对钙钛矿的稳定性提出了更大的挑战。准二维钙钛矿薄膜中长链胺配体的引入可以有 ...

The State Council, China's Cabinet, has approved a medium－and long-term plan to expand the railway network. The new plan approved on Wednesday is an updated version of the national railway plan ...

BEIJING, June 15 (Xinhua) — An article by Xi Jinping, general secretary of the Communist Party of China (CPC) Central Committee, on guiding economic and social development with medium and long-term ...

The OUTPOST study (OUTcomes POST COVID) aims to track 1,500 Australians aged 12 and over who are currently experiencing flu-like symptoms. Participants will be monitored from the onset of their ...

直播吧6月15日讯 Shams今天报道，凯文-杜兰特最想去的下家球队有热火、马刺、火箭。近日联盟各方人士获悉，杜兰特也愿意为这三支球队长期效力（commit to long-term）。 消息出来后，森林狼记者Jon ...