scholarly journals Energy converting layers for thin-film flexible photovoltaic structures

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 820-825 ◽  
Author(s):  
Katarzyna Znajdek ◽  
Natalia Szczecińska ◽  
Maciej Sibiński ◽  
Przemysław Czarnecki ◽  
Gabriela Wiosna-Sałyga ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Luminescent Properties ◽  
High Energy ◽  
Visible Range ◽  
Active Particles ◽  
Light Capture ◽  
Energy Converting

Abstract The paper presents research focused on the efficiency improvement of inorganic flexible thin-film solar cells, using energy converting layers. The light capture enhancement was achieved through the introduction of layers based on rare-earth elements, as top coatings on the amorphous silicon photovoltaic structures. Such luminescent layers are converting high-energy photons into low-energy ones, which are more efficient in photovoltaic conversion of the investigated solar cells. Towards this goal, powders consisting rare-earth elements were applied as active particles in polymer layer. For practical experiments, the screen-printing method, as a cheap, reliable and industrially-ready technology was used for layers deposition. For the experiments two compositions were selected: Sr4Al14O25: Eu,Dy (BGL-300M) and SrAl2O4: Eu,Dy (G-300M). These materials are characterized by excellent thermal and optical stability and interesting luminescent properties (they absorb ultraviolet and emit in the visible range). For the verification of investigated materials and methods, various compositions of powders and proportions were tested and analyzed.

Luminescent layers based on rare earth elements for thin-film flexible solar cells applications

Optik ◽  
2018 ◽  
Vol 165 ◽  
pp. 200-209 ◽  
Author(s):  
Katarzyna Znajdek ◽  
Natalia Szczecińska ◽  
Maciej Sibiński ◽  
Gabriela Wiosna-Sałyga ◽  
Krzysztof Przymęcki
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Rare Earth ◽  
Rare Earth Elements

REE and TRU Incorporation into Monazite Structure Ceramics

2004 ◽  
Vol 824 ◽  
Author(s):  
S. I. Rovnyi ◽  
G. M. Medvedev ◽  
A. S. Aloy ◽  
T. I. Koltsova ◽  
S. E. Samoylov
Keyword(s):  
Thin Film ◽  
Solid Solution ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Chemical Durability ◽  
Spent Fuel ◽  
Waste Streams ◽  
Oxalate Precipitation ◽  
Spent Fuel Reprocessing ◽  
Fuel Reprocessing

AbstractOne of the high levels of actinide, and in particular Cm, waste streams at the Russian radiochemical Production Association (PA) Mayak was generated during spent fuel reprocessing. Using oxalate precipitation, the rare earth elements (REE) and transuranic elements (TRU) settled out in the form of oxalate residues. Due to in high REE contents in this residue, the mineral-like matrix based on (REE)PO4 solid solution, with monlclinic monazite structure have been proposed to use as a suitable ceramics form for final actinide immobilization. For this purpose the synthetic REE oxalates were first transformed into REE orthophosphates in a thin-film evaporator (TFE). Then the (REE)PO4 powder was compacted both by either hot uniaxial pressing (HUP) or cold uniaxial pressing followed by sintering (CUP). This ceramic with the monazite structure has a high density and exhibits chemical durability by leaching.

Characteristics of Aluminum-Doped Zinc Oxide Films Grown Using Facing Target Sputtering for Transparent Electrode of Heterojunction Solar Cells

2021 ◽  
Vol 21 (3) ◽  
pp. 1799-1803
Author(s):  
Yujin Kim ◽  
Sangmo Kim ◽  
Jeongsoo Hong ◽  
Kyung Hwan Kim
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Zinc Oxide ◽  
Solar Cells ◽  
Transparent Electrode ◽  
High Energy ◽  
Heterojunction Solar Cells ◽  
Aluminum Doped Zinc Oxide ◽  
Facing Target Sputtering ◽  
High Energy Particles

In general sputtering, material characteristics can be degraded by high-energy particles located inside the plasma owing to the thin film surface. However, facing target sputtering (FTS) can be used to produce high-quality thin films through maximum control over substrate damage and the reduction of layer damage caused by high-energy particles impacting the substrate. Transparent conductive oxides (TCOs) are being applied to a variety of technologies, including displays and solar cells. The typical transparent electrode material is indium tin oxide (ITO), which contains rare and expensive raw materials. Aluminum-doped zinc oxide (AZO) has attracted increasing attention as a substitute to ITO because it is composed of abundantly available resources and is generally inexpensive. In this study, an AZO thin film was prepared using an FTS system for heterojunction solar cells. The effects of the deposition substrate temperature on the resulting electrical conductivity, structural properties, and optical properties of the AZO thin films were examined.

Magneto-optic and luminescent properties of tellurite glass TeO2-ZnCl2 doped with rare-earth elements

2004 ◽  
Vol 77 (8) ◽  
pp. 1245-1248 ◽  
Author(s):  
I. A. Grishin ◽  
V. A. Gur?ev ◽  
E. B. Intyushin ◽  
Yu. E. Elliev ◽  
O. V. Pavlova ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Tellurite Glass ◽  
Luminescent Properties ◽  
Magneto Optic

1.6 MeV Electron Irradiation on the Characteristics of CdTe Thin Film Solar Cells

2011 ◽  
Vol 343-344 ◽  
pp. 181-187
Author(s):  
Ming Yue Fang ◽  
Jing Quan Zhang ◽  
Liang Huan Feng ◽  
Li Li Wu ◽  
Wei Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electron Irradiation ◽  
Carrier Transport ◽  
High Energy ◽  
Thin Film Solar Cells ◽  
Cdte Thin Film ◽  
Before And After ◽  
Absorbing Layer ◽  
Recombination Current

The CdTe thin film solar cells with the structure of ITO/ZnO/CdS/CdTe/Au were irradiated by 1.6MeV high-energy electrons with the fluences from 5×1013/cm2 to 1×1016/cm2. The characteristics of devices before and after irradiation were studied using dark current-voltage (I-V), capacitance-voltage (C-V) and admittance spectroscopy (AS) measurements in the temperature range from 303K to 353K. The results are shown that the diode ideal factor and dark saturation current for irradiated devices first decrease and then increase significantly with fluences from 5×1013/cm2 to 1×1016/cm2, meantime the effective carrier concentration at room temperature of CdTe absorbing layer increases first and then decreases. The carrier transport mechanisms in CdTe solar cells are analyzed before and after irradiation. The non-irradiated devices and irradiated devices with fluences less than 5×1014/cm2 are dominated by the recombination current of electron-hole pairs in the depletion layer. However, it is dominated by the recombination current of tunneling at the interface after the irradiation of higher fluences. The changes of types and amount of defects caused by electron irradiation are the major reasons for the above mentioned variations.

New Phases of R[sub 3]GaO[sub 6] (R=Rare Earth Elements) and Their Luminescent Properties

2003 ◽  
Vol 150 (9) ◽  
pp. H201 ◽  
Author(s):  
Peimin Guo ◽  
Guobao Li ◽  
Fei Zhao ◽  
Fuhui Liao ◽  
Shujian Tian ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Luminescent Properties

Study on light-capture performance of silicon thin-film hollow waveguide solar cells

2017 ◽  
Vol 49 (11) ◽  
Author(s):  
Lin Wang ◽  
Xu Wang ◽  
Xiaohong Fu ◽  
Zihan Sun ◽  
Chengbin Jing ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Hollow Waveguide ◽  
Silicon Thin Film ◽  
Light Capture

Congruent Evaporation and Epitaxy in Thin Film Laser Ablation Deposition (Lad) of Rare Earth Transition Metal Elements and Compounds

1990 ◽  
Vol 191 ◽  
Author(s):  
J. P. Gavigan ◽  
D. Givord ◽  
A. Lienard ◽  
O. F. K. Mcgrath ◽  
J. P. Rebouillat ◽  
...  
Keyword(s):  
Thin Film ◽  
Rare Earth ◽  
Laser Ablation ◽  
Transition Metal ◽  
High Energy ◽  
Preparation Technique ◽  
Picosecond Pulses ◽  
Preparation Conditions ◽  
Thin Film Preparation ◽  
Diffraction Patterns

ABSTRACTLaser ablation deposition (LAD) is a versatile thin film preparation technique which has been slowly developing for a number of years, and is currently receiving a lot of attention as demand increasingly exploits its advantages over other established techniques. Apart from its simplicity, one of its main advantages is the possibility of congruently evaporating any solid compound target, be it metal or insulator, due to the extremely high energy and instantaneous power densities attainable with pulsed lasers (up to 50 Jcm−2 and 1012 Wcm−2 for picosecond pulses). In this paper, we report on tests for both congruent evaporation in LAD of a number of rare earth - transition metal intermetallic compounds including Nd2 Fe1 3 B, Yzn0.7, Yni3, Y2 Fe15 and Yni5 for different preparation conditions (using a Nd:YAG laser λ = 1064, 532, 355 nm, τ = 35 ps and 20 ns) and on the epitaxial growth of Yni5 and W on monocrystalline sapphire substrates. Optical and electron microscopy were used to examine film morphology while congruent evaporation was confirmed using x-ray microprobe analysis. In-situ RHEED revealed good epitaxy of the films deposited on sapphire, with the hexagonal diffraction patterns obtained for YNis being identical to those of an YNi 5 reference single crystal.

Changes in the local coordination of trace rare-earth elements in garnets by high-energy XAFS: new data on dysprosium

2004 ◽  
Vol 31 (3) ◽  
pp. 162-167 ◽  
Author(s):  
S. Quartieri ◽  
M. C. Dalconi ◽  
F. Boscherini ◽  
R. Oberti ◽  
F. D’Acapito
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
High Energy ◽  
Local Coordination
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