Towards the efficiency limits of multicrystalline silicon solar cells

Schindler, Florian; Fell, Andreas; Müller, Ralph; Benick, Jan; Richter, Armin; Feldmann, Frank; Krenckel, Patricia; Riepe, Stephan; Schubert, Martin C.; Glunz, Stefan W.

doi:10.1016/j.solmat.2018.05.006

Cited by 47 publications

(23 citation statements)

References 15 publications

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“…Over the last years, various types of solar cells have been developed to convert sunlight to electricity. Crystalline, polycrystalline, and amorphous silicon solar cells have been widely used for different domestic and industrial application [1][2][3]. Multijunction semiconductor solar cells have shown the world record efficiency of 46% [4].…”

Section: Introductionmentioning

confidence: 99%

Dye-Sensitized Solar Cells (DSSCs) Based on Extracted Natural Dyes

Ammar

Mohamed

Yousef

et al. 2019

Journal of Nanomaterials

145

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Here, three natural dyes were extracted from different fruits and leaves and used as sensitizers for dye-sensitized solar cells (DSSCs). Chlorophyll was extracted from spinach leaves using acetone as a solvent. Anthocyanin was extracted from red cabbage and onion peels using water. Different characterizations for the prepared natural dyes were conducted including UV-vis absorption, FTIR, and steady-state/time-resolved photoluminescence spectroscopy. Various DSSCs based on the extracted dyes were fabricated. The degradation in the power conversion efficiencies was monitored over a week. The effect of the TiO2 mesoporous layers on the efficiency was also studied. The interfaces between the natural dyes and the TiO2 layers were investigated using electrochemical impedance spectroscopy.

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Section: Introductionmentioning

confidence: 99%

Dye-Sensitized Solar Cells (DSSCs) Based on Extracted Natural Dyes

Ammar

Mohamed

Yousef

et al. 2019

Journal of Nanomaterials

145

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“…In Table , results are depicted for an irradiation intensity equivalent to 1 sun and a temperature of 25°C: ELBA prediction and TCA are averaged over the whole sample area (for ELBA according to Isenberg et al, for TCA j SC arithmetic and V OC square‐root harmonic) and compared with global measurement via LOANA . The slight overestimation of FF by ELBA is explained by the simulation neglecting edge effects, nonideal surface recombination, as well as FF losses caused by grain‐boundary recombination …”

Section: Resultsmentioning

confidence: 99%

Prediction of local temperature‐dependent performance of silicon solar cells

Eberle

Fell

Mägdefessel

et al. 2019

Progress in Photovoltaics

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In this study, we present a method to predict the local temperature‐dependent performance of silicon solar cells from wafer lifetime images, which enables local investigation of silicon solar cell parameters under realistic operation conditions. The multicrystalline silicon wafers investigated underwent high‐temperature steps equivalent to emitter diffusion and contact firing for the production of a passivated emitter and rear cell (PERC) solar cell. Injection and temperature‐dependent lifetime images, gathered by calibrated photoluminescence (PL) imaging, are combined with numerical cell device simulations using Quokka3. Hereby, the spatially resolved open‐circuit voltage VOC, short‐circuit current density jSC, fill factor FF, and the efficiency η of a virtual solar cell based on the characterized material are predicted for various temperatures. These data are used to compute temperature coefficients of the aforementioned cell parameters. Our predictions are validated by a comparison with measurement results of cells made from sister wafers, which are analyzed globally and spatially resolved via PL imaging, Lock‐in Thermography, and Light‐Beam‐Induced‐Current measurements. We observed a lower temperature sensitivity of IV parameters in dislocation clusters despite of expecting high changes with temperature, which might be explainable by Shockley‐Read‐Hall (SRH) recombination of impurities like interstitial chromium.

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“…4 However, the $∕W PV is not expected to decrease hugely due to the maturing wafer manufacturing industry and the small difference between the experimental efficiency and the theoretical efficiency limitation. 5 Thus in order to increase the energy yield (EY) of a regular PV module, new light collection techniques with low component and manufacturing costs need to be employed. 6 As efficient, lightweight, and low-cost methods, holographic solar concentration techniques such as holographic lens, planar holographic concentrator, and spectrum splitting have shown significant potential in increasing the EY of PV systems.…”

Section: Introductionmentioning

confidence: 99%

Holographic low concentration optical system increasing light collection efficiency of regular solar panels

2021

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Conventional photovoltaic (PV) modules (exclude interdigitated back contact modules) with silicon or gallium arsenide PV cells often have significant inactive module surface area. This results from wafer cutting techniques and metal contacts that reduce the module's collection area and the resultant power conversion efficiency. A holographic light collector (HLC) combining a low-cost holographic optical element and a diffuser into conventional PV modules is proposed and evaluated to collect the solar illumination over the inactive module area. The angular tolerance and extra annual energy yield (EY) of the HLC are analyzed. It is found that improvements in EY of 4.5%, 4.1%, and 3.8% can be obtained when PV panels are deployed with two-axis tracking systems, single-axis tracking systems, and without tracking systems, respectively.

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Towards the efficiency limits of multicrystalline silicon solar cells

Cited by 47 publications

References 15 publications

Dye-Sensitized Solar Cells (DSSCs) Based on Extracted Natural Dyes

Dye-Sensitized Solar Cells (DSSCs) Based on Extracted Natural Dyes

Prediction of local temperature‐dependent performance of silicon solar cells

Holographic low concentration optical system increasing light collection efficiency of regular solar panels

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