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Overview of key results achieved in H2020 HighLite project helping to raise the EU PV industries' competitiveness

Tous, L. (author), Govaert, J. (author), Harrison, S. (author), Carrière, C. (author), Barth, V. (author), Giglia, V. (author), Buchholz, F. (author), Chen, N. (author), Halm, A. (author), Faes, A. (author), Nogay, G. (author), Quest, H. (author), Roessler, T. (author), Fellmeth, T. (author), Reinwand, D. (author), Stolzenburg, H. (author), Schindler, F. (author), Mittag, M. (author), Morlier, A. (author), Bokalic, M. (author), Brecl, K. (author), Kikelj, M. (author), Topic, M. (author), Kester, J.C.P. (author), Wendlandt, S. (author), Galiazzo, M. (author), Voltan, A. (author), Galbiati, G. (author), Ortiga, M.E. (author), Torregrosa, F. (author), Grimm, M. (author), Denafas, J. (author), Radavicius, T. (author), Lukinskas, P. (author), Savisalo, T. (author), Regrettier, T. (author), Gordon, I. (author)

The EU crystalline silicon (c-Si) PV manufacturing industry has faced strong foreign competition in the last decade. To strive in this competitive environment and differentiate itself from the competition, the EU c-Si PV manufacturing industry needs to (1) focus on highly performing c-Si PV technologies, (2) include sustainability by design, and...

article 2023

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Crystalline silicon solar cells with thin poly-SiOx carrier-selective passivating contacts for perovskite/c-Si tandem applications

Singh, M. (author), Datta, K. (author), Amarnath, A. (author), Wagner, F. (author), Zhao, Y. (author), Yang, G. (author), Bracesco, A. (author), Phung, N. (author), Zhang, D. (author), Zardetto, V. (author), Najafi, M. (author), Veenstra, S.C. (author), Coletti, G. (author), Mazzarella, L. (author), Creatore, M. (author), Wienk, M.M. (author), Janssen, R.A.J. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)

Single junction crystalline silicon (c-Si) solar cells are reaching their practical efficiency limit whereas perovskite/c-Si tandem solar cells have achieved efficiencies above the theoretical limit of single junction c-Si solar cells. Next to low-thermal budget silicon heterojunction architecture, high-thermal budget carrier-selective...

article 2023

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Identification of the Origin of Ultralow Dark Currents in Organic Photodiodes

Ma, X. (author), Bin, H. (author), van Gorkom, B.T. (author), van der Pol, T.P.A. (author), Dyson, M.J. (author), Weijtens, C.H.L. (author), Fattori, M. (author), Meskers, S.C.J. (author), van Breemen, A.J.J.M. (author), Tordera, D. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author)

Organic bulk heterojunction photodiodes (OPDs) attract attention for sensing and imaging. Their detectivity is typically limited by a substantial reverse bias dark current density (Jd). Recently, using thermal admittance or spectral photocurrent measurements, Jd has been attributed to thermal charge generation mediated by mid-gap states. Here,...

article 2022

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Design and optimization of hole collectors based on nc-SiOx:H for high-efficiency silicon heterojunction solar cells

Zhao, Y. (author), Procel, P. (author), Han, C. (author), Mazzarella, L. (author), Yang, G. (author), Weeber, A. (author), Zeman, M. (author), Isabella, O. (author)

Low activation energy (Ea) and wide bandgap (Eg) are essential for (p)-contacts to achieve effective hole collection in silicon heterojunction (SHJ) solar cells. In this work, we study Plasma-Enhanced Chemical Vapor Deposition p-type hydrogenated nanocrystalline silicon oxide, (p)nc-SiOx:H, combined with (p)nc-Si:H as (p)-contact in front/back...

article 2021

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High-Accuracy Photoplethysmography Array Using Near-Infrared Organic Photodiodes with Ultralow Dark Current

Simone, G. (author), Tordera, D. (author), Delvitto, E. (author), Peeters, B. (author), van Breemen, A.J.J.M. (author), Meskers, S.C.J. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author)

Reflectance oximeters based on organic photodiode (OPD) arrays offer the potential to map blood pulsation and oxygenation via photoplethysmography (PPG) over a large area and beyond the traditional sensing locations. Here, an organic reflectance PPG array based on 16 × 16 OPD pixels is developed. The individual pixels exhibit near-infrared...

article 2020

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A High-Resolution Thin-Film Fingerprint Sensor Using a Printed Organic Photodetector

Tordera, D. (author), Peeters, B. (author), Akkerman, H.B. (author), van Breemen, A.J.J.M. (author), Maas, J. (author), Shanmugam, S. (author), Kronemeijer, A.J. (author), Gelinck, G.H. (author)

Organic photodetectors (OPDs) have attracted much attention in recent years, due to their promise in large-area light sensing applications. Here, high-resolution slot-die-coated large-area bulk heterojunction organic photodiode (OPD) arrays are reported. The OPD uses a novel electron transport layer, indium gallium zinc oxide in combination with...

article 2019

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Organic Photodetectors and their Application in Large Area and Flexible Image Sensors: The Role of Dark Current

Simone, G. (author), Dyson, M.J. (author), Meskers, S.C.J. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author)

Organic photodetectors (OPDs) have gained increasing interest as they offer cost-effective fabrication methods using low temperature processes, making them particularly attractive for large area image detectors on lightweight flexible plastic substrates. Moreover, their photophysical and optoelectronic properties can be tuned both at a material...

article 2019

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On the Origin of Dark Current in Organic Photodiodes

Simone, G. (author), Dyson, M.J. (author), Weijtens, C.H.L. (author), Meskers, S.C.J. (author), Coehoorn, R. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author)

Minimizing the reverse bias dark current while retaining external quantum efficiency is crucial if the light detection sensitivity of organic photodiodes (OPDs) is to compete with inorganic photodetectors. However, a quantitative relationship between the magnitude of the dark current density under reverse bias (Jd) and the properties of the bulk...

article 2019

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Stability of organic solar cells with PCDTBT donor polymer: An interlaboratory study

Ciammaruchi, L. (author), Oliveira, R. (author), Charas, A. (author), von Hauff, E. (author), Polino, G. (author), Brunetti, F. (author), Hansson, R. (author), Moons, E. (author), Krassas, M. (author), Kakavelakis, G. (author), Kymakis, E. (author), Sánchez, J.G. (author), Ferre-Borrull, J. (author), Marsal, L.F. (author), Züfle, S. (author), Fluhr, D. (author), Roesch, R. (author), Faber, T. (author), Schubert, U.S. (author), Hoppe, H. (author), Bakker, N.J. (author), Veenstra, S.C. (author), Zanotti, G. (author), Katz, E.A. (author), Apilo, P. (author), Romero, B. (author), Tumay, T.A. (author), Parlak, E. (author), Stagno, L.M. (author), Turkovic, V. (author), Rubahn, H.G. (author), Madsen, M. (author), Kažukauskas, V. (author), Tanenbaum, D.M. (author), Shanmugam, S. (author), Galagan, Y. (author)

This work is part of the interlaboratory collaboration to study the stability of organic solar cells containing PCDTBT polymer as a donor material. The varieties of the OPV devices with different device architectures, electrode materials, encapsulation, and device dimensions were prepared by seven research laboratories. Sets of identical devices...

article 2018

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Near-infrared tandem organic photodiodes for future application in artificial retinal implants

Simone, G. (author), di carlo Rasi, D. (author), de Vries, X. (author), Heintges, G.H.L. (author), Meskers, S.C.J. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author)

Photovoltaic retinal prostheses show great potential to restore sight in patients suffering from degenerative eye diseases by electrical stimulation of the surviving neurons in the retinal network. Herein, organic photodiodes (OPDs) sensitive to near-infrared (NIR) light are evaluated as photovoltaic pixels for future application in retinal...

article 2018

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Photocurrent Amplification in Bulk Heterojunction Organic Phototransistors with Different Donor–Acceptor Ratio

Shidachi, R. (author), Matsuhisa, N. (author), Zalar, P. (author), Chow, P.C.Y. (author), Jinno, H. (author), Yokota, T. (author), Someya, T. (author)

In this paper, the amplification of the photocurrent in organic phototransistors (OPTs) employing bulk heterojunctions (BHJs) with different donor–acceptor ratios has been studied. As a model system, poly[2-methoxy-5-(3’,7’-dimethyloctyloxy)-p-phenylene vinylene] (OC1C10-PPV) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are used as...

article 2018

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Computer-automated tuning of semiconductor double quantum dots into the single-electron regime

Baart, T.A. (author), Eendebak, P.T. (author), Reichl, C. (author), Wegscheider, W. (author), Vandersypen, L.M.K. (author)

We report the computer-automated tuning of gate-defined semiconductor double quantum dots in GaAs heterostructures. We benchmark the algorithm by creating three double quantum dots inside a linear array of four quantum dots. The algorithm sets the correct gate voltages for all the gates to tune the double quantum dots into the single-electron...

article 2016

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Impact of the Cd2+ treatment on the electrical properties of Cu2ZnSnSe4 and Cu(In,Ga)Se2 solar cells

Ben Messaoud, K. (author), Buffière, M. (author), Brammertz, G. (author), ElAnzeery, H. (author), Oueslati, S. (author), Hamon, J. (author), Kniknie, B.J. (author), Meuris, M. (author), Amlouk, M. (author), Poortmans, J. (author)

Modification of the absorber surface properties by Cd2+ treatment (Cd2+ partial electrolyte) results in the following: formation of Cd(OH)2 on the absorber surface, deposition of thinner chemical bath-deposited CdS buffer layer, and a smaller space charge region. The impact on electrical performances is as follows: decrease of the series...

article 2015

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Light stability of ITO-free semi-transparent and opaque organic photovoltaic devices

Voroshazi, E. (author), Yaala, M.B. (author), Uytterhoeven, G. (author), Tait, J.G. (author), Andriessen, R.H.A.J.M. (author), Galagan, Y. (author), Cheyns, D. (author)

Intrinsic light stability of transparent MoO3/Ag/TiO2 electrode is studied in four different polymer:fullerene solar cell configurations. We demonstrate that this stack can successfully replace ITO both in superstrate and substrate configurations required for non-transparent carriers. Although we observe that exposure of thin Ag layer directly...

conference paper 2015

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Tuning the viscosity of halogen free bulk heterojunction inks for inkjet printed organic solar cells

Lamont, C.A. (author), Eggenhuisen, T.M. (author), Coenen, M.J.J. (author), Slaats, T.W.L. (author), Andriessen, R. (author), Groen, P. (author)

For the solution processing of organic photovoltaics on an industrial scale, the exclusion of halogenated solvents is a necessity. However, the limited solubility of most semiconducting polymer/fullerene blends in non-halogenated solvents results in ink formulations with low viscosities which poses limitations to the use of roll-to-roll...

article 2015

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Discontinuous pn-heterojunction for organic thin film transistors

Cho, B. (author), Yu, S.H. (author), Kim, M. (author), Lee, M.H. (author), Huh, W. (author), Lee, J. (author), Kim, J. (author), Cho, J.H. (author), Lee, J.Y. (author), Song, Y.J. (author), Kang, M.S. (author)

Utilization of discontinuous pn-oragnic heterojunction is introduced as a versatile method to improve charge transport in organic thin film transistors (OTFTs). The method is demonstrated by depositing n-type dioctyl perylene tetracarboxylic diimide (PTCDI-C8) discontinuously onto base p-type pentacene OTFTs. A more pronounced impact of the...

article 2014

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Four-terminal organic solar cell modules with increased annual energy yield

Gehlhaar, R. (author), Cheyns, D. (author), van Willigenburg, L. (author), Hadipour, A. (author), Gilot, J. (author), Radbeh, R. (author), Aernouts, T. (author)

The authors present experimental results on mechanically stacked organic solar modules and their advantage over standard tandem architectures. A four-terminal configuration of two single junction modules with complementary absorbing active layers uses the more efficient energy conversion of a tandem structure without the necessity of matching...

conference paper 2013

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Influence of the isomeric composition of the acceptor on the performance of organic bulk heterojunction P3HT:bis-PCBM solar cells

Bouwer, R.K.M. (author), Wetzelaer, G.-J.A.H. (author), Blom, P.W.M. (author), Hummelen, J.C. (author)

We synthesized three isomeric subpopulations of bisadduct analogues of [6,6]-phenyl-C61-butyric acid methyl ester (bis-PCBM) via tether-directed control. Bulk heterojunction solar cells prepared using these isomers together with poly(3-hexylthiophene) (P3HT) resulted in an increase of Jsc from 72.4 to 79.6 A m-2, and an improvement in fill...

article 2012

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Ultimate performance of polymer: Fullerene bulk heterojunction tandem solar cells

Kotlarski, J.D. (author), Blom, P.W.M. (author)

We present the model calculations to explore the potential of polymer:fullerene tandem solar cells. As an approach we use a combined optical and electrical device model, where the absorption profiles are used as starting point for the numerical current-voltage calculations. With this model a maximum power efficiency of 11.7% for single cells has...

article 2011

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Origin of the dark-current ideality factor in polymer:fullerene bulk heterojunction solar cells

Wetzelaer, G.A.H. (author), Kuik, M. (author), Lenes, M. (author), Blom, P.W.M. (author)

In organic bulk heterojunction solar cells, a deviation of the ideality factor of the dark current from unity is commonly put forward as evidence for the presence of trap-assisted recombination. We demonstrate that the non-ideality of the dark characteristics is determined by deeply trapped carriers in the transport-dominating constituent of the...

article 2011