Effect of spray pressure on optical, electrical and solar cell efficiency of novel Cu2O thin films

被引：32

作者：

Prabu, R. David ^{[1
]}

Valanarasu, S. ^{[1
]}

Ganesh, V ^{[2
]}

Shkir, Mohd ^{[2
]}

Kathalingam, A. ^{[3
]}

AlFaify, S. ^{[2
]}

机构：

[1] Arul Anandar Coll, PG & Res Dept Phys, Madurai, Tamil Nadu, India

[2] King Khalid Univ, Fac Sci, Dept Phys, AFMOL, POB 9004, Abha, Saudi Arabia

[3] Dongguk Univ, Millimeter Wave Innovat Technol Res Ctr MINT, Seoul 04620, South Korea

来源：

SURFACE & COATINGS TECHNOLOGY | 2018年 / 347卷

关键词：

Films; Optical microscopy; Optical properties; Electrical properties; Functional applications; COPPER-OXIDE; RAMAN-SCATTERING; PHYSICAL-PROPERTIES; THERMAL-OXIDATION; SURFACE-TREATMENT; CUPROUS-OXIDE; PHOTOLUMINESCENCE; NANOPARTICLES; TEMPERATURE; IRRADIATION;

D O I：

10.1016/j.surfcoat.2018.04.084

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cu2O thin films were deposited by nebulizer spray pyrolysis technique using different pressure rates. Structural, morphological, optical, photoluminescence, electrical and solar cell studies were done. The structural studies confirmed that the deposited Cu2O thin films are in polycrystalline nature having cubic crystal structure matching with the standard JCPDS Card. No (77-0199). Laser Raman analysis confirmed that all peaks are correspond to Cu2O phase. Optical analysis showed band gap values 2.26, 2.12 and 1.99 eV for pressures 1, 2 and 3 bars, respectively. Photoluminescence analysis confirmed that the emission peak obtained at 617 nm corresponds to cuprous oxide phase. Films deposited at high pressure i.e. 3 bars showed low resistivity 1.73 x 10(2) Omega.cm. Solar cells were fabricated using the deposited Cu2O film with ZnO as heterojunction that showed fill factor values 0.29, 0.35 and 0.39 for pressures 1, 2 and 3 bars, respectively. The power conversion efficiency (eta) was increased from 0.039 to 0.57% (about 15 times) by increasing the pressure from 1 to 3 bars.

引用

页码：164 / 172

页数：9

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