Modeling of photoactive area spreading in unstructured photovoltaic cells

Gruber, Mathias; Jovanov, Vladislav; Wagner, Veit

doi:10.1016/j.solmat.2019.110011

Cited by 6 publications

(4 citation statements)

References 34 publications

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“…The effect of both the Cu grid and the patterned OPD design on the optical transmittance and its design optimization are discussed below. Electro-optical simulations and design rules for NIR OPDs with a printed Cu grid TCE The effect of the metal grid design on the performance of organic photovoltaics was studied experimentally [16][17][19][20][21] and simulated [39][40][41] . These studies however only provide the optimal metal grid's design for speci c device architectures and for metal grids with much wider line width (≥10 µm) than employed in this work 39,40 .…”

Section: Resultsmentioning

confidence: 99%

“…Electro-optical simulations and design rules for NIR OPDs with a printed Cu grid TCE The effect of the metal grid design on the performance of organic photovoltaics was studied experimentally [16][17][19][20][21] and simulated [39][40][41] . These studies however only provide the optimal metal grid's design for speci c device architectures and for metal grids with much wider line width (≥10 µm) than employed in this work 39,40 . In order to optimize the performance of our NIR-sensitive OPDs with a printed Cu grid TCE, EQE simulations were performed by a combination of numerical electro-optical-and 2D nite element modelling (FEM).…”

Section: Resultsmentioning

confidence: 99%

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A touchless user interface based on a near-infrared sensitive transparent optical imager using printed Cu grid electrodes.

Kamijo

Breemen

et al. 2022

Preprint

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Touchless technology based on user interaction modes such as voice or gestures is paving the way for tomorrow’s digital ecosystems, accelerated by hygiene requirements resulting from the COVID-19 pandemic. Gesture-based touchless user interfaces typically use near-infrared (NIR) cameras. The applicability of these systems is hampered by their limitations in field of view and their calibration requirements for high accuracy. Here, we show a novel touchless user interface based on a large-area visually transparent NIR-sensitive 16 × 16 organic photodetector (OPD) array that can be used on top of a display as a touchless user interface. Optical transparency is realized by implementing a printed copper (Cu) grid as a bottom transparent conductive electrode (TCE) and an array of patterned OPD subpixels. Electro-optical modelling enabled an optimal image sensor design that resulted in a high photodetectivity of ca. 1012 Jones at 850 nm and high visible-light transmittance of 70%. We demonstrate that our imager can be used as a penlight- and gesture controlled touchless user interface when combined with a commercial display.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

A touchless user interface based on a near-infrared sensitive transparent optical imager using printed Cu grid electrodes.

Kamijo

Breemen

et al. 2022

Preprint

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“…Antonacci and Scognamiglio [5] aimed to describe the enormous potential raised from the combination of photosynthetic elements and nanomaterials towards the design of hybrid nanostructures, and reported the recent advances in the realisation of smart biosensors and photovoltaic cells. Grubera et al [6] investigated the influence of unstructured chargeextraction/transport layers on solar cell photocurrent measurements. Katayama et al [7] applied several types of failure and degradation in photovoltaic cells, such as mechanical stress, interconnect ribbon disconnection, and PID, to photovoltaic modules.…”

Section: B-double Exponential Model (Dem)mentioning

confidence: 99%

Study of Models Using One or Two Exponentials to Simulate the Characteristic Current-voltage of Silicon Solar Cells

Sari-Ali¹,

Benyoucef²,

Chikh-Bled³

et al. 2019

EJEE

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The production of electricity based on the conversion of the sunlight by photocells crystalline silicon is the most way using on technological and industrial plan. As a consequence, the development of the applications of energy production requires cells with high efficiency and low cost. We propose two models using either one or two exponentials allowing to simulate the characteristic current-voltage of a solar cell. The goal of our work is to present a comparative study between the model theoretical and experimental aiming at the improvement of the solar cell efficiency. We also determine the parameters of the solar cell from the current-voltage curve. Additionally, we provide a justification for using the two exponential models for improving the cell efficiency. The model with two exponential allowing to investigate the phenomena of recombination in zone of diffusion and space charge in the areas quasi-neutrals of the transmitter and the base. This study underlines the insufficiency of the model to exponential generally used by showing that it leads to the design of the ideal solar cells whereas structures characterized by a factor of quality greater outcome with high efficiency.

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“…Hernández-Callejoet et al [19] discussed in their review the hybrid systems and the power quality. Gruber et al [20] explored the effect of unorganized charge-extraction/transport layers on the measurements of solar cell photocurrent. Antonacci and Scognamiglio [21] were interested in the realization of smart biosensors and the development of hybrid nanostructures composed of photosynthetic elements and nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

A New Configuration of Vertically Connecting Solar Cells: Solar Tree

Baci

Salmi

Menni

et al. 2020

International Journal of Photoenergy

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Solar energy is a renewable type, clean, and inexhaustible which is sufficiently available on the Algerian territory. The energy received daily on a horizontal surface of 1 m2 is in the order of 5 kWh over almost the whole Algerian territory; the duration of sunshine surpasses 2000 hours annually and can reach 3900 hours on the highlands and the Sahara. The importance of this work is based on exploiting solar energy to produce electricity. This study is based on the experimental exploitation of solar energy using solar tree’s prototype suggestion. This new model is focused to replace the leaf of a tree by the solar cell, starting by examining the solar field and physical phenomenon related with it; the description of cell photovoltaic comes after; and finally, the dimension of the solar system and the experimental studies are virtually released in the University of M’sila. In this work, a prototype of new artificial solar tree is proposed experimentally by using material available in the local market: 25 solar panels, metal support, electrical queues, regulator, and battery. The results highlight a power improvement in the case of the proposed new model (solar tree) compared to the traditional one provided (solar panel), for the specified time range between 8 am and 2:30 pm. On the other hand, the traditional model values improve if the time dimension is extended from 2:30 pm to 6:00 pm. This is due to the temperature of the region and the presence of interstellar spaces between the cells of the solar tree.

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Modeling of photoactive area spreading in unstructured photovoltaic cells

Cited by 6 publications

References 34 publications

A touchless user interface based on a near-infrared sensitive transparent optical imager using printed Cu grid electrodes.

A touchless user interface based on a near-infrared sensitive transparent optical imager using printed Cu grid electrodes.

Study of Models Using One or Two Exponentials to Simulate the Characteristic Current-voltage of Silicon Solar Cells

A New Configuration of Vertically Connecting Solar Cells: Solar Tree

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