scholarly journals Study of Sputtered ITO Films on Flexible Invar Metal Foils for Curved Perovskite Solar Cells

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 120 ◽  
Author(s):  
Hae-Jun Seok ◽  
Han-Ki Kim
Keyword(s):  
Solar Cells ◽  
Sheet Resistance ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Optical Transmittance ◽  
Metal Substrate ◽  
Metal Foil ◽  
Ito Film ◽  
Bending Radius ◽  
Ito Films

We have studied characteristics of tin-doped indium oxide (ITO) films sputtered on flexible invar metal foil covered with an insulating SiO2 layer at room temperature to use as transparent electrodes coated substrates for curved perovskite solar cells. Sheet resistance, optical transmittance, surface morphology, and microstructure of the ITO films on SiO2/invar substrate are investigated as a function of the thickness from 50 to 200 nm. The optimized ITO film exhibits a low sheet resistance of 50.21 Ohm/square and high optical transmittance of up to 94.31% even though it is prepared at room temperature. In particular, high reflectance of invar metal substrate could enhance the power conversion efficiency of curved perovskite solar cell fabricated on the ITO/SiO2/invar substrate. In addition, critical bending radius of the 150 nm-thick ITO film is determined by lab-designed outer and inner bending tests to show feasibility as flexible electrode. Furthermore, dynamic fatigue test is carried out to show flexibility of the ITO film on invar metal substrate. This suggests that the ITO/SiO2/invar substrate can be applied as flexible electrodes and substrates for curved perovskite solar cells.

NANO-INDENTER MECHANICAL PROPERTIES OF ITO/GLASS THIN FILM DEPOSITED BY DC MAGNETRON SPUTTERING METHOD AT LOW TEMPERATURE

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4322-4327
Author(s):  
HAN-KI YOON ◽  
DO HYOUNG KIM ◽  
DO HOON SHIN ◽  
RI-ICHI MURAKAMI
Keyword(s):  
Electrical Resistivity ◽  
Magnetron Sputtering ◽  
Room Temperature ◽  
Optical Transmittance ◽  
Experimental Result ◽  
Dc Magnetron Sputtering ◽  
Ito Film ◽  
Ito Glass ◽  
Sputtering Pressure ◽  
Ito Films

The ITO film was deposited onto the glass substrate at room temperature by the inclination opposite target type DC magnetron sputtering equipment. An indium tin alloy ( In 2 O 3(90 wt %)+ SnO 2(10 wt %)) target was used. The Total sputtering pressure was varied from 2.6×10-1 to 8.3×10-1 Pa . The experimental result showed that the ITO film produced at room temperature had microstructure in which a X-ray diffraction peak is not clear, regardless of the total sputtering pressure. All the films showed a high optical transmittance. The ITO films prepared at low pressures gave low electrical resistivity. The elastic modulus and hardness of ITO films on various total sputtering pressures were increased with decreasing the total sputtering pressure and this tendency was similar to the change in electrical resistivity with decreasing the total sputtering pressure.

IMPROVEMENT IN STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF ITO FILM THROUGH AlN AND HfO2 BUFFER LAYERS

2021 ◽  
pp. 2150094
Author(s):  
NASER M. AHMED ◽  
NOOR HUMAM SULAIMAN ◽  
MAHIR FARIS ABDULLAH ◽  
ASMAA SOHEIL NAJM ◽  
NAVEED AFZAL ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
Indium Tin Oxide ◽  
Laser Annealing ◽  
Rf Magnetron Sputtering ◽  
Optical Transmittance ◽  
Film Deposition ◽  
Buffer Layers ◽  
Ito Film ◽  
Ito Glass ◽  
Ito Films

Indium Tin Oxide (ITO) films were deposited on glass substrate using radiofrequency (RF) magnetron sputtering technique. To improve the physical characteristics of the ITO film, AlN and HfO2 buffer layers were deposited on glass prior to the film deposition. The ITO/glass, ITO/AlN/glass and ITO/HfO2/glass films were annealed using CO2 laser and electrical oven heating methods. The crystallinity of the ITO film was improved due to the incorporation of AlN and HfO2 buffer layers and also by the post-deposition annealing process. The optical transmittance of the ITO was also increased due to the presence of the buffer layers. Similarly, the annealed ITO films grown on buffer layers exhibited lower values of the sheet resistance as compared to the film deposited without buffer layers. The laser annealing technique was more found to be more effective in reducing the ITO sheet resistance.

scholarly journals Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1489
Author(s):  
Bhaskar Parida ◽  
Saemon Yoon ◽  
Dong-Won Kang
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Room Temperature ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Plasma Damage ◽  
Temperature Solution ◽  
Ito Nanoparticles

Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.

Water repellent room temperature vulcanized silicone for enhancing the long-term stability of perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 28-34
Author(s):  
Mahmoud Samadpour ◽  
Mahsa Heydari ◽  
Mahdi Mohammadi ◽  
Parisa Parand ◽  
Nima Taghavinia
Keyword(s):  
Solar Cells ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Water Repellent ◽  
Term Stability ◽  
Long Term Stability

scholarly journals Improving Performance of CIGS Solar Cells by Annealing ITO Thin Films Electrodes

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Chuan Lung Chuang ◽  
Ming Wei Chang ◽  
Nien Po Chen ◽  
Chung Chiang Pan ◽  
Chung Ping Liu
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solar Cells ◽  
Indium Tin Oxide ◽  
Copper Indium Gallium Diselenide ◽  
Glass Substrates ◽  
Ito Film ◽  
Ito Thin Films ◽  
Cigs Solar Cells ◽  
Ito Films

Indium tin oxide (ITO) thin films were grown on glass substrates by direct current (DC) reactive magnetron sputtering at room temperature. Annealing at the optimal temperature can considerably improve the composition, structure, optical properties, and electrical properties of the ITO film. An ITO sample with a favorable crystalline structure was obtained by annealing in fixed oxygen/argon ratio of 0.03 at 400°C for 30 min. The carrier concentration, mobility, resistivity, band gap, transmission in the visible-light region, and transmission in the near-IR regions of the ITO sample were-1.6E+20 cm−3,2.7E+01 cm2/Vs,1.4E-03 Ohm-cm, 3.2 eV, 89.1%, and 94.7%, respectively. Thus, annealing improved the average transmissions (400–1200 nm) of the ITO film by 16.36%. Moreover, annealing a copper-indium-gallium-diselenide (CIGS) solar cell at 400°C for 30 min in air improved its efficiency by 18.75%. The characteristics of annealing ITO films importantly affect the structural, morphological, electrical, and optical properties of ITO films that are used in solar cells.

scholarly journals Room Temperature Processed Double Electron Transport Layers for Efficient Perovskite Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 329
Author(s):  
Wen Huang ◽  
Rui Zhang ◽  
Xuwen Xia ◽  
Parker Steichen ◽  
Nanjing Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Room Temperature ◽  
Deposition Time ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Electron Transport Layer ◽  
Double Electron

Zinc Oxide (ZnO) has been regarded as a promising electron transport layer (ETL) in perovskite solar cells (PSCs) owing to its high electron mobility. However, the acid-nonresistance of ZnO could destroy organic-inorganic hybrid halide perovskite such as methylammonium lead triiodide (MAPbI3) in PSCs, resulting in poor power conversion efficiency (PCE). It is demonstrated in this work that Nb2O5/ZnO films were deposited at room temperature with RF magnetron sputtering and were successfully used as double electron transport layers (DETL) in PSCs due to the energy band matching between Nb2O5 and MAPbI3 as well as ZnO. In addition, the insertion of Nb2O5 between ZnO and MAPbI3 facilitated the stability of the perovskite film. A systematic investigation of the ZnO deposition time on the PCE has been carried out. A deposition time of five minutes achieved a ZnO layer in the PSCs with the highest power conversion efficiency of up to 13.8%. This excellent photovoltaic property was caused by the excellent light absorption property of the high-quality perovskite film and a fast electron extraction at the perovskite/DETL interface.

Coloring semitransparent room-temperature fabricated perovskite solar cells via dielectric mirrors (Conference Presentation)

2016 ◽  
Author(s):  
César Omar Ramírez Quiroz ◽  
Carina Bronnbauer ◽  
Ievgen Levchuk ◽  
Michael Salvador ◽  
Yi Hou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Dielectric Mirrors
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