Influence of humidity on the photoemission properties and surface morphology of cesium iodide photocathode

Pandit, Triloki; Dutta, B. N.; Singh, B. K.

doi:10.1016/j.nima.2011.10.019

Cited by 19 publications

(14 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The average grain size is calculated to be about 350 nm and the z-height is found to be about 170 nm. The morphological result obtained from AFM can be compared with earlier published results [15,16]. The estimated average grain size (i.e.…”

Section: Morphological Properties Of Csimentioning

confidence: 83%

Photoemission and optical constant measurements of a Cesium Iodide thin film photocathode

Pandit

Rai

Gupta

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

Self Cite

View full text Add to dashboard Cite

The performance of cesium iodide as a reflective photocathode is presented. The absolute quantum efficiency of a 500 nm thick film of cesium iodide has been measured in the wavelength range 150 nm to 200 nm. The optical absorbance has been analyzed in the wavelength range 190 nm to 900 nm and the optical band gap energy has been calculated. The dispersion properties were determined from the refractive index using an envelope plot of the transmittance data. The morphological and elemental film composition have been investigated by atomic force microscopy and X-ray photo-electron spectroscopy techniques.

show abstract

Section: Morphological Properties Of Csimentioning

confidence: 83%

Photoemission and optical constant measurements of a Cesium Iodide thin film photocathode

Pandit

Rai

Gupta

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previous results show that the reflective films having homogeneous and continuous grain like morphology along with larger value of grain size compared to semitransparent films. The impact of VUV irradiation and exposure to humid air on CsI surfaces are reported in references [28,32]. With the VUV irradiation and exposure to humid air, semitransparent CsI surfaces degrades quickly than the reflective film and its morphology becomes inhomogeneous and discontinuous.…”

Section: Morphological Analysismentioning

confidence: 99%

Optical and structural properties of CsI thin film photocathode

Pandit

Rai

Singh

2015

Nuclear Instruments and Methods in Physics Research Section A:

Self Cite

View full text Add to dashboard Cite

In the present work, the performance of a cesium iodide thin film photocathode is studied in detail. The optical absorbance of cesium iodide films has been analyzed in the spectral range from 190 nm to 900 nm. The optical band gap energy of 500 nm thick cesium iodide film is calculated from the absorbance data using Tauc plot. The refractive index is estimated from envelope plot of transmittance data using Swanepoel's method. The absolute quantum efficiency measurement has been carried out in the wavelength range from 150 nm to 200 nm. The crystallographic nature and surface morphology are investigated by X-ray diffraction and transmission electron microscopy techniques. In addition, the elemental composition result obtained by energy dispersive X-ray analysis is also reported in the present work.

show abstract

“…been discovered in previous studies. [16][17][18][19] The specic surface area is increased with reducing particle size, 20 hence, these asprepared CsI NCs should be highly sensitive to electron beam irradiation. Under electron beam irradiation, there are two main specimen-electron interactions that are known as knockon damage and ionization radiolysis.…”

Section: Resultsmentioning

confidence: 99%

Morphologically controlled synthesis of ionic cesium iodide colloidal nanocrystals and electron beam-induced transformations

Song

et al. 2018

RSC Adv.

View full text Add to dashboard Cite

show abstract

Influence of humidity on the photoemission properties and surface morphology of cesium iodide photocathode

Cited by 19 publications

References 8 publications

Photoemission and optical constant measurements of a Cesium Iodide thin film photocathode

Photoemission and optical constant measurements of a Cesium Iodide thin film photocathode

Optical and structural properties of CsI thin film photocathode

Morphologically controlled synthesis of ionic cesium iodide colloidal nanocrystals and electron beam-induced transformations

Contact Info

Product

Resources

About