Electrochemical design of ZnO hierarchical structures for dye-sensitized solar cells

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F12%3A00384100" target="_blank" >RIV/61388955:_____/12:00384100 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.solmat.2011.11.046" target="_blank" >http://dx.doi.org/10.1016/j.solmat.2011.11.046</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.solmat.2011.11.046" target="_blank" >10.1016/j.solmat.2011.11.046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical design of ZnO hierarchical structures for dye-sensitized solar cells

Popis výsledku v původním jazyce

ZnO single-crystalline nanowires (NWs) are highly relevant 1D-nanostructures for efficient charge collection in dye sensitized solar cells (DSSCs). In a first part of the paper, ZnO-NWs have been grown by electrochemistry on various fluorine-doped transparent oxide (FM) coated glass substrates. The effects of substrate treatments and of the presence of an underlayer of TiO2 or ZnO on the cell performance are reported. In particular, we show that the presence of a TiO2 underlayer gives rise to a dense array of ZnO-NWs with a high aspect ratio ( > 30) and to the cells with the best performances. However, the roughness of the NW arrayed films were not sufficient for the efficient harvesting of sunlight and low fill factors were found. In a second step, hierarchical structures have been designed by growing electrochemically a secondary nanoporous epitaxial ZnO phase on the wire surface. We have found that the cell performances were significantly improved in that case due to a much larger s

Název v anglickém jazyce

Electrochemical design of ZnO hierarchical structures for dye-sensitized solar cells

Popis výsledku anglicky

ZnO single-crystalline nanowires (NWs) are highly relevant 1D-nanostructures for efficient charge collection in dye sensitized solar cells (DSSCs). In a first part of the paper, ZnO-NWs have been grown by electrochemistry on various fluorine-doped transparent oxide (FM) coated glass substrates. The effects of substrate treatments and of the presence of an underlayer of TiO2 or ZnO on the cell performance are reported. In particular, we show that the presence of a TiO2 underlayer gives rise to a dense array of ZnO-NWs with a high aspect ratio ( > 30) and to the cells with the best performances. However, the roughness of the NW arrayed films were not sufficient for the efficient harvesting of sunlight and low fill factors were found. In a second step, hierarchical structures have been designed by growing electrochemically a secondary nanoporous epitaxial ZnO phase on the wire surface. We have found that the cell performances were significantly improved in that case due to a much larger s

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/KAN100400702" target="_blank" >KAN100400702: Nanostrukturní materiály pro katalytické, elektrokatalytické a sorpční aplikace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Solar Energy Materials and Solar Cells

ISSN

0927-0248

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

JUL 2012

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

8-14

Kód UT WoS článku

000305100200003

EID výsledku v databázi Scopus

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