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

Etching and sulfuring are equally important process during the surface sulfur passivation?of gallium antimopnide (GaSb) In this work, we described the effects of etching by?certain proportion of bromine methanol solution instead of hydrochloric acid solution?(acidification), which could lead to a improvement of surface passivation homogeneity?of GaSb. The photoluminescence (PL) spectra and the atomic force microscope (AFM)?morphology on GaSb are also indicated a good surface morphology.