Influence of annealing treatments on solution-processed ZnO film deposited on ITO substrate as electron transport layer for inverted polymer solar cells

Articolo

Data di Pubblicazione:

2015

Citazione:

Influence of annealing treatments on solution-processed ZnO film deposited on ITO substrate as electron transport layer for inverted polymer solar cells / Morvillo, P.; Diana, R.; Mucci, Adele; Bobeico, E.; Ricciardi, R.; Minarini, C.. - In: SOLAR ENERGY MATERIALS AND SOLAR CELLS. - ISSN 0927-0248. - STAMPA. - 141:(2015), pp. 210-217. [10.1016/j.solmat.2015.05.038]

Abstract:

In thisworkwestudiedtheinfluence oftheannealingtreatmentsofasol–gel derivedZnOelectron
transport layerdepositedonITOsubstrate,ontheperformancesofinvertedbulkheterojunctionpolymer
solar cellsusingablendofpoly[(4,8-bis-(2-ethylhexyloxy)-benzo[1,2-b;4,5-b′]dithiophene)-2,6-diyl-alt-
(4-(2-ethylhexanoyl)-thieno[3,4-b]thiopene)-2,6-diyl] and[6,6]-phenylC71 butyric acidmethylester.
Since theannealingtreatmentsneededtocompletetheformationofthesolution-processedZnO film can
modify theunderlyingITOelectrode,weanalyzedtheperformanceofthefabricatedcellsintermsofthe
properties ofITOandZnO films. WefoundalinearrelationshipbetweenthesheetresistanceoftheITO
layerandtheseriesresistanceofthecorrespondingdevice,whichstronglyinfluences the fill factor.The
best powerconversionefficiency (7%)undersimulatedAM1.5Gilluminationof100mW/cm2 was
achieved forthepolymersolarcellfabricatedusingaZnO film annealedat150 °C foronly5min.Higher
annealing temperaturesandtimesincreasethesheetresistanceoftheITOworseningthedeviceper-
formances.

Tipologia CRIS:

Articolo su rivista

Keywords:

Photovoltaic Polymer solarcells Invertedarchitecture ZnO Sol–gel

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