Photoelectron spectra of alkali metal-ammonia microjets: From blue electrolyte to bronze metal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F20%3A00525614" target="_blank" >RIV/61388963:_____/20:00525614 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10414941

Výsledek na webu

<a href="https://science.sciencemag.org/content/368/6495/1086" target="_blank" >https://science.sciencemag.org/content/368/6495/1086</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1126/science.aaz7607" target="_blank" >10.1126/science.aaz7607</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photoelectron spectra of alkali metal-ammonia microjets: From blue electrolyte to bronze metal

Popis výsledku v původním jazyce

Experimental studies of the electronic structure of excess electrons in liquids—archetypal quantum solutes—have been largely restricted to very dilute electron concentrations. We overcame this limitation by applying soft x-ray photoelectron spectroscopy to characterize excess electrons originating from steadily increasing amounts of alkali metals dissolved in refrigerated liquid ammonia microjets. As concentration rises, a narrow peak at ~2 electron volts, corresponding to vertical photodetachment of localized solvated electrons and dielectrons, transforms continuously into a band with a sharp Fermi edge accompanied by a plasmon peak, characteristic of delocalized metallic electrons. Through our experimental approach combined with ab initio calculations of localized electrons and dielectrons, we obtain a clear picture of the energetics and density of states of the ammoniated electrons over the gradual transition from dilute blue electrolytes to concentrated bronze metallic solutions.

Název v anglickém jazyce

Photoelectron spectra of alkali metal-ammonia microjets: From blue electrolyte to bronze metal

Popis výsledku anglicky

Experimental studies of the electronic structure of excess electrons in liquids—archetypal quantum solutes—have been largely restricted to very dilute electron concentrations. We overcame this limitation by applying soft x-ray photoelectron spectroscopy to characterize excess electrons originating from steadily increasing amounts of alkali metals dissolved in refrigerated liquid ammonia microjets. As concentration rises, a narrow peak at ~2 electron volts, corresponding to vertical photodetachment of localized solvated electrons and dielectrons, transforms continuously into a band with a sharp Fermi edge accompanied by a plasmon peak, characteristic of delocalized metallic electrons. Through our experimental approach combined with ab initio calculations of localized electrons and dielectrons, we obtain a clear picture of the energetics and density of states of the ammoniated electrons over the gradual transition from dilute blue electrolytes to concentrated bronze metallic solutions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/EF16_019%2F0000729" target="_blank" >EF16_019/0000729: Chemická biologie pro vývoj nových terapií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science

ISSN

0036-8075

e-ISSN

—

Svazek periodika

368

Číslo periodika v rámci svazku

6495

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1086-1091

Kód UT WoS článku

000539738400039

EID výsledku v databázi Scopus

2-s2.0-85086008027