Stacked Back Reflector Architecture for Advanced Optical Management in State-of-the-Art Single-Junction μc-Si:H Solar Cells

Baral, Apurba; Das, Gourab; Roy, Arijit Bardhan; Kole, Arindam; Mukherjee, Nillohit; Bose, Sukanta

doi:10.1109/jphotov.2020.3008263

Cited by 9 publications

(2 citation statements)

References 39 publications

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“…A special sandwiched structure design of silver sulfide nanoparticles (Ag 2 S) between two indium tin oxide (ITO) layers was used to fabricate the BRL which is more advantageous in terms of the absorption loss, thermal stability, and cost effectiveness . The synthesis technique of the BRL was followed from the work by Mukherjee et al The role of the (Ag 2 S) NPs in reflecting light over a broad spectral region has already been reported, and it was also observed that a solar cell with a sandwiched structure can show an excellent response up to 1100 nm. , The encapsulation layers of ITO-coated Ag 2 S was also deposited through PLD after synthesis using the same Nd:YAG laser with a beam fluence and repetition rate of 2.5 JCm –2 and 30 Hz, respectively. The deposition temperature was maintained at 350 °C, and the films were grown in an argon 6.0 (99.9999%) atmosphere with a base pressure of 300 mTorr.…”

Section: Experimental Sectionmentioning

confidence: 99%

Nd³⁺-Ion-Sensitized PZT:Er³⁺/Yb³⁺ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

Sukul

Singh

Swart

2023

ACS Appl. Opt. Mater.

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Using the pulsed laser deposition (PLD) technique via Nd:YAG laser ablation, a transparent luminescent phosphor thin film of homogeneous thickness was created that could effectively absorb both near-infrared (NIR) and ultraviolet (UV) light while simultaneously upconverting and downconverting it to visible light. In single-junction microcrystalline silicon solar photovoltaics (SPV), the use of the gradient luminous phosphor Nd 3+ -sensitized Er 3+ /Yb 3+ codoped zirconate titanate (PZT) layer was examined. The addition of an Nd 3+ /Er 3+ /Yb 3+ doped PZT luminescent layer to the back of the solar cell could dramatically extend the lifetime of the device when compared to that of a reference Si solar cell. The proposed model's light motion was also examined using a theoretical simulation (COMSOL). An attempt was made to find an alternative to existing luminescent solar cell concentrators, i.e., microlens array (MLA) configuration, that functions as spatial light modulators in solar cells in this work. The reported gradient phosphor three-layer design is unique and works as an efficient light-trapping design following the phenomena of total internal reflection in multimode optical fibers. The proposed solar photovoltaics was also created with a nanomirror configuration employing semiconductor nanoparticles for effective light absorption in the back reflector layer. When compared to Si-SPV without the luminescent layer, the frequency upconverted visible emissions can be reabsorbed by the SPV and boost the photocurrent, which increases the overall fill factor from 5.30 to 5.99%. The current methodology offers a simple approach for a high-performance luminescent SPV design.

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Section: Experimental Sectionmentioning

confidence: 99%

Nd³⁺-Ion-Sensitized PZT:Er³⁺/Yb³⁺ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

Sukul

Singh

Swart

2023

ACS Appl. Opt. Mater.

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“…T r is the reference temperature of the solar cell, I rr is the reverse saturation current of the solar cell at the temperature T r , E Gap is the energy required for semiconductor materials to span band gaps (E Gap of silicon ≈ 1.1 eV) [40].…”

Section: Photovoltaic Solar Module Specificationmentioning

confidence: 99%

A Novel VFVDC Optimized Full Bridge Inverter Control Strategy for Independent Solar Power Systems

Liu

Lin

et al. 2022

IEEE Access

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This research explored the independent solar power system (ISPS), including the maximum power point tracking (MPPT) technology and the DC (direct current) to AC (alternating current) full-bridge inverter (FBI) control technology. This study combined the perturb and observe (P&O) algorithm based on the output voltage control strategy and the proposed optimized FBI control strategy to the ISPS. The proposed variable frequency and variable duty cycle (VFVDC) optimized FBI control strategy had adjustable frequency and duty cycle. The proposed VFVDC control strategy was compared with the sinusoidal pulse width modulation (SPWM). When the output of FBI was at a low voltage level, the operating frequency was 10 kHz. Conversely, when the FBI gave a high voltage level output, the operating frequency was 1 kHz. This control improved the switching loss of 4 power MOSFETs in the FBI and thus improved the performance with a low harmonic amount. To further verify the explored system, this study used MATLAB to compare the proposed control strategy and SPWM control method. The simulation results verified that the proposed control strategy total harmonic distortion (THD) = 1.02% was better than the SPWM control method THD = 3.23%, then the low pass filter (LPF) volume was reduced. Finally, the actual ISPS was used for actual measurement and verification. The proposed control strategy had a low harmonic level, can operate stably and effectively, and thus be used for the actual fulfillment of electricity needs. INDEX TERMSVariable frequency and variable duty cycle control strategy, maximum power point tracking, solar power systems, full bridge inverter.

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Non-uniform Al₂O₃ back reflector for performance enhancement of thin rear passivated silicon solar cells

Banerjee,

Mukhopadhyay,

Hossain

2024

Phys. Scr.

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Low material usage, physical flexibility, portability, and lightweight applications are some of the major advantages that have claimed serious research attention towards ultrathin crystalline silicon wafer-based solar cells. This work seeks to address a major challenge for such cells namely poor light absorption in thin absorbers. A novel inclined back reflector layer (BRL) of aluminium oxide for both planar and textured surfaced silicon devices with a thickness of 20 µm is investigated, combined with the passivation properties of the metal oxide film. A study of symmetric, asymmetric, and textured conformal BRL revealed an optical gain of ~32% for the optimized BRL as compared to the structure without BRL. The combined effect of passivation and back reflection of the proposed BRL improved the power conversion efficiency by 60%. The optical and efficiency gain of 17% was observed for the structures with inclined BRL, as compared to that of a planar BRL. A remarkable omnidirectional response was also observed for textured BRL structures.

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Stacked Back Reflector Architecture for Advanced Optical Management in State-of-the-Art Single-Junction μc-Si:H Solar Cells

Cited by 9 publications

References 39 publications

Nd³⁺-Ion-Sensitized PZT:Er³⁺/Yb³⁺ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

Nd³⁺-Ion-Sensitized PZT:Er³⁺/Yb³⁺ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

A Novel VFVDC Optimized Full Bridge Inverter Control Strategy for Independent Solar Power Systems

Non-uniform Al₂O₃ back reflector for performance enhancement of thin rear passivated silicon solar cells

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Stacked Back Reflector Architecture for Advanced Optical Management in State-of-the-Art Single-Junction μc-Si:H Solar Cells

Cited by 9 publications

References 39 publications

Nd3+-Ion-Sensitized PZT:Er3+/Yb3+ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

Nd3+-Ion-Sensitized PZT:Er3+/Yb3+ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

A Novel VFVDC Optimized Full Bridge Inverter Control Strategy for Independent Solar Power Systems

Non-uniform Al2O3 back reflector for performance enhancement of thin rear passivated silicon solar cells

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Nd³⁺-Ion-Sensitized PZT:Er³⁺/Yb³⁺ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

Nd³⁺-Ion-Sensitized PZT:Er³⁺/Yb³⁺ Gradient Luminescent Layers Using Pulsed Laser Deposition as Alternative to Microlens Array Arrangement for Improving Efficiency of Si Solar Photovoltaic

Non-uniform Al₂O₃ back reflector for performance enhancement of thin rear passivated silicon solar cells