国产成人亚洲精品无码青app,白丝紧致爆乳自慰喷水,国产疯狂女同互磨高潮在线观看,jizzjizz少妇亚洲水多

In this work, ammonium sulfide ((NH4)2S) solution?was used to passivated the surfaces of InP substrate. The optical
properties were measured by PL (Photoluminescence)?measurement, the luminescence intensity increased about 7 times
when the passivated time was 15 min. The reasons of enhanced?luminescence were also discussed. After passivating, the surface?morphology and electrical properties were analyzed by atomic?force microscopy (AFM) and Hall effect, respectively