CE ÎNSEAMNĂ PHOTOELECTRON ÎN ENGLEZĂ?
Efect fotoelectric
Efectul fotoelectric este observarea că multe metale emit electroni când lumina strălucește asupra lor. Electronii emise în acest mod pot fi numite fotoelectroni. Conform teoriei electromagnetice clasice, acest efect poate fi atribuit transferului de energie de la lumină la un electron din metal. Din această perspectivă, o modificare a amplitudinii sau lungimii de undă a luminii ar induce modificări ale ratei de emisie a electronilor din metal. Mai mult, conform acestei teorii, o lumină suficient de slabă ar fi de așteptat să arate un timp de întârziere între strălucirea inițială a luminii sale și emisia ulterioară a unui electron. Cu toate acestea, rezultatele experimentale nu s-au corelat cu nici una dintre cele două predicții făcute de această teorie. În schimb, după cum se arată, electronii sunt desprinși doar prin efectul fotoelectric dacă lumina atinge sau depășește o frecvență de prag, sub care nu se pot emite electroni din metal, indiferent de amplitudinea și durata temporală a expunerii luminii.
Definiția photoelectron în dicționarul Engleză
Definiția fotoelectronului din dicționar este un electron emis de un atom, moleculă sau solid de către un foton incident.
CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «PHOTOELECTRON»
Descoperă întrebuințarea
photoelectron în următoarea selecție bibliografică. Cărți în legătură cu
photoelectron și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Photoelectron Spectroscopy: Principles and Applications
A wealth of measured data is presented in tabulator form for easy use by experimentalists. The reader will learn about the basic technique of photoemission spectroscopy and obtain the necessary background for work based on this book.
2
X-ray
Photoelectron Spectroscopy: An introduction to ...
This book introduces readers interested in the field of X-ray Photoelectron Spectroscopy (XPS) to the practical concepts in this field.
3
Practical Surface Analysis: Auger and X-ray
photoelectron ...
This first volume of the two-volume set discusses two closely related analytical techniques--Auger and X-ray photoelectron spectroscopy.
David Briggs, M. P. Seah,
1990
4
Auger- and X-Ray
Photoelectron Spectroscopy in Materials ...
This book presents the basics of Auger- and X-Ray Photoelectron Spectroscopy in Materials Science in logical order from sample preparation and instrument setup through data acquisition to data evaluation.
5
Electronic and
Photoelectron Spectroscopy: Fundamentals and ...
The volume is for advanced undergraduate and graduate students taking courses in spectroscopy and will also be useful to anyone encountering electronic and/or photoelectron spectroscopy during their research.
Andrew M. Ellis, Miklos Feher, Timothy G. Wright,
2005
6
Very High Resolution
Photoelectron Spectroscopy
This book will be a valuable tool for anyone wishing to get acquainted with the state of the art in the field.
7
Radiation and
Photoelectron Dynamics in Ultrastrong Laser Fields
In the strong field regime (1 x 1013W/cm2 to 1 x 10 16W/cm2) the interaction is understood in the frame work of Schrodinger equation under the dipole approximation. In ultra-strong laser fields the dipole approximation breaks down.
Isaac Ghebregziabher,
2008
8
Negative Ion
Photoelectron Imaging Spectroscopy of Iodine ...
The second type of molecule studied is the heterodiatom IBr.
9
X-Ray
Photoelectron Spectroscopy of Solid Surfaces
This volume outlines the physical and methodical concepts of X-ray photoelectron spectroscopy (XPS) specifically for surface studies using both inner and valence electron levels.
Nefedov, Vadim Ivanovich Nefedov,
1988
10
Photoabsorption, Photoionization, and
Photoelectron Spectroscopy
Photoabsorption, Photoionization, and Photoelectron Spectroscopy
ȘTIRI NOI CARE INCLUD TERMENUL «PHOTOELECTRON»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
photoelectron în contextul următoarelor știri.
The future with nanoionics
... X-ray photoelectron spectroscopy and scanning electron microscopy, along with sensitive electrical measurements. Driven by a small electric ... «Nanowerk, Iul 15»
Interfacial assembly of mesoporous nanopyramids as ultrasensitive …
The X-ray photoelectron spectroscopy analysis demonstrates one main peak of O1s (~533 eV), two peaks of Fe 2p1/2 and 2p3/2 in Fe2O3 at ... «Nature.com, Iul 15»
MIT Scholars Engaged in Nanomaterials Study for Drug Delivery …
Constable will use X-ray photoelectron spectroscopy and fourier transform infrared spectroscopy to characterize chemical bonds. "We are ... «AZoNano.com, Iul 15»
The Characterisation and Standardisation of Graphene and Other …
Meanwhile X-ray photoelectron microscopy (XPS), Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) are ... «AZoNano.com, Iul 15»
Sub-micron Resolution X-ray Photoelectron Imaging
It is possible to acquire a photoelectron image within a few seconds for precise sample alignment and produce a high quality photoelectron ... «Azom.com, Iul 15»
Market Report On X-ray photoelectron spectroscopy (XPS) Industry …
The report firstly introduced X-ray photoelectron spectroscopy (XPS) basic information included X-ray photoelectron spectroscopy (XPS) ... «Medgadget.com, Iul 15»
Long-standing puzzle about a small molecule solved: Spectroscopic …
The photoelectron spectra indicate two states, which the researchers conclude are the bound triplet and a dissociative singlet state of OCCO. «Phys.Org, Iul 15»
Mapping Ultra-Thin SiO2 on Si Using Parallel Angle Resolved X-ray …
Unlike ellipsometry, X-ray Photoelectron Spectroscopy (XPS) can measure the thickness of silicon oxide through the wafer without any ... «Azom.com, Iul 15»
Self-organizing human cardiac microchambers mediated by …
We confirmed that the PEG layer was grafted on and etched from the TCPS using X-ray photoelectron spectroscopy (XPS, Supplementary Fig. «Nature.com, Iul 15»
Using XPS, REELS and UPS for the Surface Characterization of …
Using the ultraviolet photoelectron spectroscopy (UPS), more information on the PFO valence levels can be obtained. UPS consists of a helium ... «Azom.com, Iul 15»