中文 English

Chemoselective Surface Trap-Mediated Metal Growth on Semiconductor Nanocrystals


Abstract "We present a highly chemoselective deposition of precious metals on semiconductor nanoheterostructures with a strong preference for cadmium and zinc telluride over the lighter chalcogenides. The selectivity is explained by p-type surface traps on the tellurides, compared to n-type defects of the homologous sulfides and selenides, and can be turned off by passivating the particle su... » read more

Trump Wants Critical Metals


In recent times, President Trump has taken an active role in the electronics and related sectors, notably the U.S. administration’s move to block Broadcom’s unsolicited, $117 billion takeover bid for Qualcomm. The Trump administration has also raised eyebrows by blocking other deals as well. And with little or no fanfare, the administration is also taking a role in another area—critica... » read more