会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • NANOWIRE PHOTOCATHODE AND METHOD FOR PRODUCING SUCH A PHOTOCATHODE
    • 纳米级光电阴极及生产这种光电阴极的方法
    • WO2017207898A3
    • 2018-01-25
    • PCT/FR2017051321
    • 2017-05-29
    • PHOTONIS FRANCECENTRE NAT RECH SCIENT
    • ALIBERT CLAUDECONDE MOUSTAPHAHARMAND JEAN-CHRISTOPHEJEGOREL THÉO
    • H01J9/12H01J1/34H01J40/06
    • H01J9/12H01J1/34H01J40/06
    • The invention relates to a photocathode comprising an amorphous substrate, such as a glass substrate (110), having an input face for receiving incident photons and a rear face opposite the input face. Nanowires (120) made from at least one III-V semiconductor material are deposited on the rear face of the substrate and extend from said face away from the input face. The composition of the nanowires comprises a radial variation in the proportion of the elements of the III-V material, such as to produce a forbidden band gradient from the core of the nanowires towards the periphery thereof. The invention also relates to a method for the MBE production of such a photocathode. During the nanowire growth phase, the fluxes of materials forming the III-V semiconductor material are varied such as to produce a material having a greater forbidden band at the start of the growth phase than at the end of said phase.
    • 本发明涉及一种光电阴极,其包括诸如玻璃衬底(110)的非晶衬底,其具有用于接收入射光子的输入面和与输入面相对的背面。 由至少一种III-V族半导体材料制成的纳米线(120)沉积在衬底的背面上并从所述面远离输入面延伸。 纳米线的组成包括III-V族材料的元素比例的径向变化,例如以产生从纳米线的核心向其外围的禁带梯度。 本发明还涉及用于MBE生产这种光电阴极的方法。 在纳米线生长阶段期间,形成III-V族半导体材料的材料的通量发生变化,从而产生在生长阶段开始时具有比在所述阶段结束时更大的禁带的材料。