Photocurrent Enhanced by Singlet Fission in a Dye-Sensitized Solar Cell

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F15%3A00443599" target="_blank" >RIV/61388963:_____/15:00443599 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/am506329v" target="_blank" >http://dx.doi.org/10.1021/am506329v</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/am506329v" target="_blank" >10.1021/am506329v</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocurrent Enhanced by Singlet Fission in a Dye-Sensitized Solar Cell

Popis výsledku v původním jazyce

Investigations of singlet fission have accelerated recently because of its potential utility in solar photoconversion, although only a few reports definitively identify the role of singlet fission in a complete solar cell. Evidence of the influence of singlet fission in a dye-sensitized solar cell using 1,3-diphenylisobenzofuran (DPIBF, 1) as the sensitizer is reported here. Self-assembly of the blue-absorbing 1 with co-adsorbed oxidation products on mesoporous TiO2 yields a cell with a peak internal quantum efficiency of similar to 70% and a power conversion efficiency of similar to 1.1%. Introducing a ZrO2 spacer layer of thickness varying from 2 to 20 angstrom modulates the short-circuit photocurrent such that it is initially reduced as thickness increases but 1 with 1015 angstrom of added ZrO2. This rise can be explained as being due to a reduced rate of injection of electrons from the S1 state of 1 such that singlet fission, known to occur with a 30 ps time constant in polycrystal

Název v anglickém jazyce

Photocurrent Enhanced by Singlet Fission in a Dye-Sensitized Solar Cell

Popis výsledku anglicky

Investigations of singlet fission have accelerated recently because of its potential utility in solar photoconversion, although only a few reports definitively identify the role of singlet fission in a complete solar cell. Evidence of the influence of singlet fission in a dye-sensitized solar cell using 1,3-diphenylisobenzofuran (DPIBF, 1) as the sensitizer is reported here. Self-assembly of the blue-absorbing 1 with co-adsorbed oxidation products on mesoporous TiO2 yields a cell with a peak internal quantum efficiency of similar to 70% and a power conversion efficiency of similar to 1.1%. Introducing a ZrO2 spacer layer of thickness varying from 2 to 20 angstrom modulates the short-circuit photocurrent such that it is initially reduced as thickness increases but 1 with 1015 angstrom of added ZrO2. This rise can be explained as being due to a reduced rate of injection of electrons from the S1 state of 1 such that singlet fission, known to occur with a 30 ps time constant in polycrystal

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

ACS Applied Materials and Interfaces

ISSN

1944-8244

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

2286-2293

Kód UT WoS článku

000349137300020

EID výsledku v databázi Scopus

2-s2.0-84922475031