Nanostructured TiO2 thin films sputtered at room temperature as electron transport layer for flexible perovskite solar cell applications: Impact of varying RF power

被引：3
|
作者：
Baqandwan, Hanadi [1 ,2 ]
Samsuri, Siti Azrah Mohamad [1 ]
Halim, Mohd Mahadi [1 ]
Pakhuruddin, Mohd Zamir [1 ,3 ]
机构：
[1] Univ Sains Malaysia, Sch Phys, Photovolta Mat & Devices, Minden 11800, Penang, Malaysia
[2] Seiyun Univ, Coll Educ, Dept Phys, Seiyun, Hadramout, Yemen
[3] Univ Sains Malaysia, Inst Nano Optoelect Res & Technol INOR, George Town 11800, Malaysia
来源：
PHYSICA B-CONDENSED MATTER | 2024年 / 679卷
关键词：
Sputtering; Nanostructured TiO 2; Flexible substrate; Electron transport layer; OPTICAL-PROPERTIES; HIGH-EFFICIENCY; PHYSICAL-PROPERTIES; DEPOSITION; SURFACE; PHASE; PERFORMANCE; PRESSURE; GROWTH; PET;
D O I：
10.1016/j.physb.2024.415788
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
This work examines the adoption of radio frequency (RF) sputtering at power ranging from 100 to 300 W to deposit nanostructured titanium dioxide (TiO2) thin films on indium tin oxide (ITO)-coated polyethylene terephthalate (PET) flexible substrate (ITO/PET) at room temperature. At higher RF power, X-ray diffraction (XRD) results exhibited evolution from amorphous into crystalline anatase with preferred (101) orientation and the films revealed spherical-like nanostructures with increasing grain size from 15.71 to 21.57 nm. Films transparency decreased from 79% to 70%. Estimated energy gap decreased from 3.57 to 3.36 eV, while refractive index increased from 2.19 to 2.25, denoting a red shift in the films. The thin film deposited at 300 W exhibited high conductivity and mobility of 19.65 x 10- 5 Omega- 1 cm -1 and 0.30 cm2/Vs, respectively. The film demonstrated its capability as an electron transport layer for flexible perovskite solar cells.
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页数：11
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