TiO2/Cu2O all-oxide heterojunction solar cells produced by spray pyrolysis

Michele Pavan; Sven Rühle; Adam Ginsburg; David A. Keller; Hannah Noa Barad; Paolo M. Sberna; Daniela Nunes; Rodrigo Martins; Assaf Y. Anderson; Arie Zaban; Elvira Fortunato

doi:https://doi.org/10.1016/j.solmat.2014.10.005

TiO₂/Cu₂O all-oxide heterojunction solar cells produced by spray pyrolysis

Michele Pavan, Sven Rühle, Adam Ginsburg, David A. Keller, Hannah Noa Barad, Paolo M. Sberna, Daniela Nunes, Rodrigo Martins, Assaf Y. Anderson, Arie Zaban, Elvira Fortunato

Department of Chemistry

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

Abstract

Here we present for the first time a TiO₂/Cu₂O all-oxide heterojunction solar cell entirely produced by spray pyrolysis onto fluorine doped tin oxide (FTO) covered glass substrates, using silver as a back contact. A combinatorial approach was chosen to investigate the impact of the TiO₂ window layer and the Cu₂O light absorber thicknesses. We observe an open circuit voltage up to 350 mV and a short circuit current density which is strongly dependent of the Cu₂O thickness, reaching a maximum of ~0.4 mA/cm². Optical investigation reveals that a thickness of 300 nm spray pyrolysis deposited Cu₂O is sufficient to absorb most photons with an energy above the symmetry allowed optical transition of 2.5 eV, indicating that the low current densities are caused by strong recombination in the absorber that consists of small Cu₂O grains.

Original language	English
Pages (from-to)	549-556
Number of pages	8
Journal	Solar Energy Materials and Solar Cells
Volume	132
DOIs	https://doi.org/10.1016/j.solmat.2014.10.005
State	Published - Jan 2015

Keywords

All-oxide-photovoltaics
High throughput characterization
Spray pyrolysis
TiO/CuO heterojunction

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces, Coatings and Films
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

https://doi.org/10.1016/j.solmat.2014.10.005

Cite this

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title = "TiO2/Cu2O all-oxide heterojunction solar cells produced by spray pyrolysis",

abstract = "Here we present for the first time a TiO2/Cu2O all-oxide heterojunction solar cell entirely produced by spray pyrolysis onto fluorine doped tin oxide (FTO) covered glass substrates, using silver as a back contact. A combinatorial approach was chosen to investigate the impact of the TiO2 window layer and the Cu2O light absorber thicknesses. We observe an open circuit voltage up to 350 mV and a short circuit current density which is strongly dependent of the Cu2O thickness, reaching a maximum of ~0.4 mA/cm2. Optical investigation reveals that a thickness of 300 nm spray pyrolysis deposited Cu2O is sufficient to absorb most photons with an energy above the symmetry allowed optical transition of 2.5 eV, indicating that the low current densities are caused by strong recombination in the absorber that consists of small Cu2O grains.",

keywords = "All-oxide-photovoltaics, High throughput characterization, Spray pyrolysis, TiO/CuO heterojunction",

author = "Michele Pavan and Sven R{\"u}hle and Adam Ginsburg and Keller, {David A.} and Barad, {Hannah Noa} and Sberna, {Paolo M.} and Daniela Nunes and Rodrigo Martins and Anderson, {Assaf Y.} and Arie Zaban and Elvira Fortunato",

year = "2015",

month = jan,

doi = "https://doi.org/10.1016/j.solmat.2014.10.005",

language = "الإنجليزيّة",

volume = "132",

pages = "549--556",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - TiO2/Cu2O all-oxide heterojunction solar cells produced by spray pyrolysis

AU - Pavan, Michele

AU - Rühle, Sven

AU - Ginsburg, Adam

AU - Keller, David A.

AU - Barad, Hannah Noa

AU - Sberna, Paolo M.

AU - Nunes, Daniela

AU - Martins, Rodrigo

AU - Anderson, Assaf Y.

AU - Zaban, Arie

AU - Fortunato, Elvira

PY - 2015/1

Y1 - 2015/1

N2 - Here we present for the first time a TiO2/Cu2O all-oxide heterojunction solar cell entirely produced by spray pyrolysis onto fluorine doped tin oxide (FTO) covered glass substrates, using silver as a back contact. A combinatorial approach was chosen to investigate the impact of the TiO2 window layer and the Cu2O light absorber thicknesses. We observe an open circuit voltage up to 350 mV and a short circuit current density which is strongly dependent of the Cu2O thickness, reaching a maximum of ~0.4 mA/cm2. Optical investigation reveals that a thickness of 300 nm spray pyrolysis deposited Cu2O is sufficient to absorb most photons with an energy above the symmetry allowed optical transition of 2.5 eV, indicating that the low current densities are caused by strong recombination in the absorber that consists of small Cu2O grains.

AB - Here we present for the first time a TiO2/Cu2O all-oxide heterojunction solar cell entirely produced by spray pyrolysis onto fluorine doped tin oxide (FTO) covered glass substrates, using silver as a back contact. A combinatorial approach was chosen to investigate the impact of the TiO2 window layer and the Cu2O light absorber thicknesses. We observe an open circuit voltage up to 350 mV and a short circuit current density which is strongly dependent of the Cu2O thickness, reaching a maximum of ~0.4 mA/cm2. Optical investigation reveals that a thickness of 300 nm spray pyrolysis deposited Cu2O is sufficient to absorb most photons with an energy above the symmetry allowed optical transition of 2.5 eV, indicating that the low current densities are caused by strong recombination in the absorber that consists of small Cu2O grains.

KW - All-oxide-photovoltaics

KW - High throughput characterization

KW - Spray pyrolysis

KW - TiO/CuO heterojunction

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U2 - https://doi.org/10.1016/j.solmat.2014.10.005

DO - https://doi.org/10.1016/j.solmat.2014.10.005

M3 - مقالة

SN - 0927-0248

VL - 132

SP - 549

EP - 556

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -