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

被引：152

作者：

Pavan, Michele ^{[1
]}

Ruehle, Sven ^{[2
]}

Ginsburg, Adam ^{[2
]}

Keller, David A. ^{[2
]}

Barad, Hannah-Noa ^{[2
]}

Sberna, Paolo M. ^{[3
,4
]}

Nunes, Daniela ^{[1
]}

Martins, Rodrigo ^{[1
]}

Anderson, Assaf Y. ^{[2
]}

Zaban, Arie ^{[2
]}

Fortunato, Elvira ^{[1
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, CENIMAT I3N, Dept Ciencia Mat, P-2829516 Caparica, Portugal

[2] Bar Ilan Univ, Dept Chem, Ctr Nanotechnol & Adv Mat, Ramat Gan, Israel

[3] Univ Catania, MATIS IMM CNR, I-95123 Catania, Italy

[4] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2015年 / 132卷

关键词：

Spray pyrolysis; All-oxide-photovoltaics; High throughput characterization; TiO2/Cu2O heterojunction; OPEN-CIRCUIT VOLTAGE; THIN-FILMS; CUPROUS-OXIDE; DEPOSITION; COPPER; OXIDATION; EFFICIENCY; INTERFACE;

D O I：

10.1016/j.solmat.2014.10.005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

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 (PTO) 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 similar to 0.4 mA/cm(2). 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. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：549 / 556

页数：8

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