红外技术
紅外技術
홍외기술
INFRARED TECHNOLOGY
2013年
9期
581-586
,共6页
李晓峰%赵学峰%张昆林%李全保%王志宏
李曉峰%趙學峰%張昆林%李全保%王誌宏
리효봉%조학봉%장곤림%리전보%왕지굉
Rb2Te(Cs)阴极%Cs2Te阴极%紫外阴极%光谱反射率%光谱响应%荧光谱
Rb2Te(Cs)陰極%Cs2Te陰極%紫外陰極%光譜反射率%光譜響應%熒光譜
Rb2Te(Cs)음겁%Cs2Te음겁%자외음겁%광보반사솔%광보향응%형광보
Rb2Te(Cs) cathode%Cs2Te cathode%ultraviolet cathode%spectral reflection%spectral response%fluorescence spectrum
简述了 Rb2Te(Cs)日盲紫外阴极的制作工艺并制作了 Rb2Te(Cs)日盲紫外阴极样品。测量了Rb2Te(Cs)日盲紫外阴极样品的光谱响应、光谱反射率和250 nm波长激发条件下的荧光谱。测量结果表明，在现有工艺条件下，Rb2Te(Cs)日盲紫外阴极的灵敏度高于Cs2Te日盲紫外阴极，与Cs2Te日盲紫外阴极相比，光谱响应的峰值波长更短，位于250 nm，而长波截止波长位于312 nm。另外Rb2Te(Cs)日盲紫外阴极的短波日盲特性更好，633 nm的光谱灵敏度为10-5 mA/W的数量级，较Cs2Te日盲紫外阴极低两个数量级。光谱反射率测量结果表明，Rb2Te(Cs)日盲紫外阴极的光谱反射率在200～400 nm的波长范围内均高于Cs2Te日盲紫外阴极，而在400～600 nm的波长范围内，反射率却低于Cs2Te日盲紫外阴极。Rb2Te(Cs)日盲紫外阴极的光谱反射率曲线与Cs2Te日盲紫外阴极的光谱反射率曲线相比较，曲线的形状相似，反射干涉加强峰的波长基本相同，由此可推断出 Rb2Te(Cs)紫外阴极的折射率与Cs2Te紫外阴极的折射率基本相同，仅在长波范围内稍有区别。荧光谱的测试结果表明，在同样条件下，在200～450 nm的波长范围内，Rb2Te(Cs)紫外阴极的荧光弱于Cs2Te紫外阴极的荧光，原因是Rb2Te(Cs)阴极的光谱反射率高于Cs2Te紫外阴极的光谱反射率，因此光吸收更少，导致荧光更弱。所以Rb2Te(Cs)日盲紫外阴极同Cs2Te日盲紫外阴极的性能类似，均可用于日盲紫外探测成像器件。
簡述瞭 Rb2Te(Cs)日盲紫外陰極的製作工藝併製作瞭 Rb2Te(Cs)日盲紫外陰極樣品。測量瞭Rb2Te(Cs)日盲紫外陰極樣品的光譜響應、光譜反射率和250 nm波長激髮條件下的熒光譜。測量結果錶明，在現有工藝條件下，Rb2Te(Cs)日盲紫外陰極的靈敏度高于Cs2Te日盲紫外陰極，與Cs2Te日盲紫外陰極相比，光譜響應的峰值波長更短，位于250 nm，而長波截止波長位于312 nm。另外Rb2Te(Cs)日盲紫外陰極的短波日盲特性更好，633 nm的光譜靈敏度為10-5 mA/W的數量級，較Cs2Te日盲紫外陰極低兩箇數量級。光譜反射率測量結果錶明，Rb2Te(Cs)日盲紫外陰極的光譜反射率在200～400 nm的波長範圍內均高于Cs2Te日盲紫外陰極，而在400～600 nm的波長範圍內，反射率卻低于Cs2Te日盲紫外陰極。Rb2Te(Cs)日盲紫外陰極的光譜反射率麯線與Cs2Te日盲紫外陰極的光譜反射率麯線相比較，麯線的形狀相似，反射榦涉加彊峰的波長基本相同，由此可推斷齣 Rb2Te(Cs)紫外陰極的摺射率與Cs2Te紫外陰極的摺射率基本相同，僅在長波範圍內稍有區彆。熒光譜的測試結果錶明，在同樣條件下，在200～450 nm的波長範圍內，Rb2Te(Cs)紫外陰極的熒光弱于Cs2Te紫外陰極的熒光，原因是Rb2Te(Cs)陰極的光譜反射率高于Cs2Te紫外陰極的光譜反射率，因此光吸收更少，導緻熒光更弱。所以Rb2Te(Cs)日盲紫外陰極同Cs2Te日盲紫外陰極的性能類似，均可用于日盲紫外探測成像器件。
간술료 Rb2Te(Cs)일맹자외음겁적제작공예병제작료 Rb2Te(Cs)일맹자외음겁양품。측량료Rb2Te(Cs)일맹자외음겁양품적광보향응、광보반사솔화250 nm파장격발조건하적형광보。측량결과표명，재현유공예조건하，Rb2Te(Cs)일맹자외음겁적령민도고우Cs2Te일맹자외음겁，여Cs2Te일맹자외음겁상비，광보향응적봉치파장경단，위우250 nm，이장파절지파장위우312 nm。령외Rb2Te(Cs)일맹자외음겁적단파일맹특성경호，633 nm적광보령민도위10-5 mA/W적수량급，교Cs2Te일맹자외음겁저량개수량급。광보반사솔측량결과표명，Rb2Te(Cs)일맹자외음겁적광보반사솔재200～400 nm적파장범위내균고우Cs2Te일맹자외음겁，이재400～600 nm적파장범위내，반사솔각저우Cs2Te일맹자외음겁。Rb2Te(Cs)일맹자외음겁적광보반사솔곡선여Cs2Te일맹자외음겁적광보반사솔곡선상비교，곡선적형상상사，반사간섭가강봉적파장기본상동，유차가추단출 Rb2Te(Cs)자외음겁적절사솔여Cs2Te자외음겁적절사솔기본상동，부재장파범위내초유구별。형광보적측시결과표명，재동양조건하，재200～450 nm적파장범위내，Rb2Te(Cs)자외음겁적형광약우Cs2Te자외음겁적형광，원인시Rb2Te(Cs)음겁적광보반사솔고우Cs2Te자외음겁적광보반사솔，인차광흡수경소，도치형광경약。소이Rb2Te(Cs)일맹자외음겁동Cs2Te일맹자외음겁적성능유사，균가용우일맹자외탐측성상기건。
In this paper, the processing technology of Rb2Te(Cs) solar blind ultraviolet cathode is described and samples of Rb2Te(Cs) solar blind ultraviolet cathode were produced. The spectral response, spectral reflectance and the fluorescence spectra under the excitation condition of 250 nm wavelength of Rb2Te(Cs) solar blind ultraviolet cathode samples were measured. The findings suggest that under the existing technological condition, the sensitivity of Rb2Te(Cs) solar blind ultraviolet cathode is greater than that of Cs2Te;as compared with Cs2Te solar blind ultraviolet cathode, the peak wavelength in spectral response is shorter at 250 nm, while the cutoff wavelength of long wave is at 315 nm. In addition, Rb2Te(Cs) solar blind ultraviolet cathode has better solar blind property;the spectral sensitivity at 633 nm is ranked at the order of magnitude of 10-5 mA/W, two order of magnitudes lower than that of Cs2Te solar blind ultraviolet cathode. In terms of spectral reflectance, the findings show that the spectral reflectance of Rb2Te(Cs) solar blind ultraviolet cathode is higher than that of Cs2Te solar blind ultraviolet cathode within the scope of 200-400 nm wavelength, and is lower than that of Cs2Te solar blind ultraviolet cathode within the scope of 400-600 nm wavelength. The spectral reflectance curves of Rb2Te(Cs) solar blind ultraviolet cathode and Cs2Te solar blind ultraviolet cathode are similar in shape, and the peaks in spectral reflectance curve of Rb2Te(Cs) solar blind ultraviolet cathode are basically same to the peaks in spectral reflectance curve of Cs2Te solar blind ultraviolet cathode. It is concluded that the refractive index of Rb2Te(Cs) solar blind ultraviolet cathode is basically same as that of Cs2Te solar blind ultraviolet cathode, only small difference in the range of longer wavelength. The findings on fluorescence spectra indicate that under the same condition and within the scope of 200-450 nm wavelength, the fluorescence of Rb2Te(Cs) ultraviolet cathode is more weaker than that of Cs2Te ultraviolet cathode, as the reflectance of Rb2Te (Cs) cathode is higher than that of Cs2Te ultraviolet cathode, the more the photo absorption, the more intense the fluorescence. Thus, the properties of Rb2Te(Cs) solar blind ultraviolet cathode are similar to those of Cs2Te solar blind ultraviolet cathode, and both cathodes can be applied to image device for solar blind ultraviolet detection.
