FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895837821> ?p ?o ?g. }

• W2895837821 abstract "A III–V semiconductor with a few monolayers of alkali metals (e.g., Cs) forms a negative electron affinity (NEA) surface, for which the vacuum level lies below the conduction band minimum of the base semiconductor. The photocathodes that form an NEA surface (NEA photocathodes) have various advantages, such as low emittance, a large current, high spin polarization, and ultrashort pulsed operation. The NEA-InGaN photocathode, which is sensitive to blue light, has been studied as a material for the next-generation robust photocathode. However, the proper conditions for forming NEA surfaces remain unknown. The authors consider whether the suitable process for NEA surfaces can be understood by investigating the relationship between the electron emission and the adsorption state of alkali metals. In this study, the relationship between the electron emission and the adsorption state of Cs on the p-type InGaN (0001) was analyzed by the temperature-programed desorption (TPD) method using a quadrupole mass spectrometer. From the results of the TPD measurements, it was shown that there were several adsorption states of Cs on InGaN. The quantum efficiency (QE), which indicates the ratio of emitted electrons to incident photons, increased while Cs desorption occurred. The authors divided the formation process of an NEA surface into several sections to investigate the adsorption states of Cs related to the electron emission and to discuss the reasons why the QE increased despite the desorbed Cs. From the results of the NEA activation in each section, it was shown that there were sections where the QE increased by reacting with O2 after Cs supply stopped. There is a possibility that several layers reacting with O2 and those not reacting with O2 are formed by performing NEA activation until the QE saturates. From the results of the TPD measurements in each section, it was suggested that there was a Cs peak at above 700 °C when the TPD method was carried out immediately after confirming the electron emission. Therefore, the adsorption state of Cs that formed a peak at above 700 °C had a close relation to the electron emission. It is considered that the increase of the QE in the TPD was affected by adsorbed Cs compounds that reacted with O2. Although the mechanism is not understood, it is known that the QE was increased by the reaction of Cs adsorbed compounds and O2 in previous studies. It was suspected that layers that reacted with O2 appeared from TPD and then the QE increased by reacting with O2." @default.
• W2895837821 created "2018-10-26" @default.
• W2895837821 creator A5005581859 @default.
• W2895837821 creator A5016242886 @default.
• W2895837821 creator A5048297262 @default.
• W2895837821 creator A5048399593 @default.
• W2895837821 creator A5051255682 @default.
• W2895837821 creator A5054512097 @default.
• W2895837821 creator A5068167793 @default.
• W2895837821 creator A5081655998 @default.
• W2895837821 date "2018-10-23" @default.
• W2895837821 modified "2023-09-26" @default.
• W2895837821 title "Analysis of negative electron affinity InGaN photocathode by temperature-programed desorption method" @default.
• W2895837821 cites W1657238061 @default.
• W2895837821 cites W1969778975 @default.
• W2895837821 cites W1973964110 @default.
• W2895837821 cites W1974536205 @default.
• W2895837821 cites W1996298635 @default.
• W2895837821 cites W2010249848 @default.
• W2895837821 cites W2037600168 @default.
• W2895837821 cites W2049098956 @default.
• W2895837821 cites W2061362974 @default.
• W2895837821 cites W2078285369 @default.
• W2895837821 cites W2086159012 @default.
• W2895837821 cites W2099866198 @default.
• W2895837821 cites W2100300210 @default.
• W2895837821 cites W2119990867 @default.
• W2895837821 cites W2123349020 @default.
• W2895837821 cites W2133883691 @default.
• W2895837821 cites W2327867337 @default.
• W2895837821 cites W2338862869 @default.
• W2895837821 doi "https://doi.org/10.1116/1.5048061" @default.
• W2895837821 hasPublicationYear "2018" @default.
• W2895837821 type Work @default.
• W2895837821 sameAs 2895837821 @default.
• W2895837821 citedByCount "4" @default.
• W2895837821 countsByYear W28958378212021 @default.
• W2895837821 countsByYear W28958378212022 @default.
• W2895837821 crossrefType "journal-article" @default.
• W2895837821 hasAuthorship W2895837821A5005581859 @default.
• W2895837821 hasAuthorship W2895837821A5016242886 @default.
• W2895837821 hasAuthorship W2895837821A5048297262 @default.
• W2895837821 hasAuthorship W2895837821A5048399593 @default.
• W2895837821 hasAuthorship W2895837821A5051255682 @default.
• W2895837821 hasAuthorship W2895837821A5054512097 @default.
• W2895837821 hasAuthorship W2895837821A5068167793 @default.
• W2895837821 hasAuthorship W2895837821A5081655998 @default.
• W2895837821 hasConcept C108225325 @default.
• W2895837821 hasConcept C113196181 @default.
• W2895837821 hasConcept C121332964 @default.
• W2895837821 hasConcept C13115443 @default.
• W2895837821 hasConcept C147120987 @default.
• W2895837821 hasConcept C150394285 @default.
• W2895837821 hasConcept C162711632 @default.
• W2895837821 hasConcept C178790620 @default.
• W2895837821 hasConcept C184779094 @default.
• W2895837821 hasConcept C185592680 @default.
• W2895837821 hasConcept C192562407 @default.
• W2895837821 hasConcept C198091228 @default.
• W2895837821 hasConcept C205507967 @default.
• W2895837821 hasConcept C2781238429 @default.
• W2895837821 hasConcept C32909587 @default.
• W2895837821 hasConcept C43617362 @default.
• W2895837821 hasConcept C49040817 @default.
• W2895837821 hasConcept C62520636 @default.
• W2895837821 hasConceptScore W2895837821C108225325 @default.
• W2895837821 hasConceptScore W2895837821C113196181 @default.
• W2895837821 hasConceptScore W2895837821C121332964 @default.
• W2895837821 hasConceptScore W2895837821C13115443 @default.
• W2895837821 hasConceptScore W2895837821C147120987 @default.
• W2895837821 hasConceptScore W2895837821C150394285 @default.
• W2895837821 hasConceptScore W2895837821C162711632 @default.
• W2895837821 hasConceptScore W2895837821C178790620 @default.
• W2895837821 hasConceptScore W2895837821C184779094 @default.
• W2895837821 hasConceptScore W2895837821C185592680 @default.
• W2895837821 hasConceptScore W2895837821C192562407 @default.
• W2895837821 hasConceptScore W2895837821C198091228 @default.
• W2895837821 hasConceptScore W2895837821C205507967 @default.
• W2895837821 hasConceptScore W2895837821C2781238429 @default.
• W2895837821 hasConceptScore W2895837821C32909587 @default.
• W2895837821 hasConceptScore W2895837821C43617362 @default.
• W2895837821 hasConceptScore W2895837821C49040817 @default.
• W2895837821 hasConceptScore W2895837821C62520636 @default.
• W2895837821 hasFunder F4320334789 @default.
• W2895837821 hasIssue "6" @default.
• W2895837821 hasLocation W28958378211 @default.
• W2895837821 hasOpenAccess W2895837821 @default.
• W2895837821 hasPrimaryLocation W28958378211 @default.
• W2895837821 hasRelatedWork W1034888117 @default.
• W2895837821 hasRelatedWork W1493747539 @default.
• W2895837821 hasRelatedWork W1532399974 @default.
• W2895837821 hasRelatedWork W1975135865 @default.
• W2895837821 hasRelatedWork W1994523301 @default.
• W2895837821 hasRelatedWork W2035528781 @default.
• W2895837821 hasRelatedWork W2040402460 @default.
• W2895837821 hasRelatedWork W2042119479 @default.
• W2895837821 hasRelatedWork W2129105756 @default.
• W2895837821 hasRelatedWork W4382237693 @default.
• W2895837821 hasVolume "36" @default.
• W2895837821 isParatext "false" @default.

• next