Low-Temperature Hydrogen Plasma Reduction of Graphene Oxide Counter Electrodes for Printed Dye-Sensitized Solar Cells

Kód výsledku v IS VaVaI

RIV/00216224:14310/20:00114107 - isvavai.cz

Výsledek na webu

https://doi.org/10.37904/nanocon.2019.8700

DOI - Digital Object Identifier

10.37904/nanocon.2019.8700

Jazyk výsledku

angličtina

Název v původním jazyce

Low-Temperature Hydrogen Plasma Reduction of Graphene Oxide Counter Electrodes for Printed Dye-Sensitized Solar Cells

Popis výsledku v původním jazyce

In this work, solution-processable graphene oxide (GO) dispersions were used for the simple preparation of thin GO layers (50 nm thickness), which were reduced by low-temperature hydrogen plasma. Hydrogen plasma reduction (ideal treatment time 8 sec) led to a decrease of oxygen-containing groups and consequently, in the transformation of sp3-carbon oxidized domains to preferable sp2-carbon aromatic domains in rGO layers (XPS). GO and rGO layers were used as counter-electrodes (CEs) in printed dye-sensitized solar cells (DSSCs). DSSCs with rGO CEs reached an increased conversion efficiency of 0.9 % compared to DSSCs based on GO CEs with 0.4%. This can be attributed to the higher catalytic activity of plasma reduced rGO CEs in the presence of iodine electrolyte and also lower sheet resistance compared to GO CEs.

Název v anglickém jazyce

Low-Temperature Hydrogen Plasma Reduction of Graphene Oxide Counter Electrodes for Printed Dye-Sensitized Solar Cells

Popis výsledku anglicky

In this work, solution-processable graphene oxide (GO) dispersions were used for the simple preparation of thin GO layers (50 nm thickness), which were reduced by low-temperature hydrogen plasma. Hydrogen plasma reduction (ideal treatment time 8 sec) led to a decrease of oxygen-containing groups and consequently, in the transformation of sp3-carbon oxidized domains to preferable sp2-carbon aromatic domains in rGO layers (XPS). GO and rGO layers were used as counter-electrodes (CEs) in printed dye-sensitized solar cells (DSSCs). DSSCs with rGO CEs reached an increased conversion efficiency of 0.9 % compared to DSSCs based on GO CEs with 0.4%. This can be attributed to the higher catalytic activity of plasma reduced rGO CEs in the presence of iodine electrolyte and also lower sheet resistance compared to GO CEs.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

GJ19-14770Y: Plazmatem produkované nanostrukturované vrstvy pro flexibilní materiály nové generace

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

11th International Conference on Nanomaterials - Research & Application NANOCON 2019

ISBN

9788087294956

ISSN

2694-930X

e-ISSN

—

Počet stran výsledku

5

Strana od-do

210-214

Název nakladatele

TANGER Ltd.

Místo vydání

Brno

Místo konání akce

Brno, Czech Republic

Datum konání akce

16. 10. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000664115400034