Searched for: author%3A%22Bolt%2C+P.J.%22
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Zeng, X. (author), Lontchi, J. (author), Zhukova, M. (author), Bolt, P.J. (author), Simor, M. (author), Fourdrinier, L. (author), Li, G. (author), Flandre, D. (author)
An ultra-thin CdS/CIGS heterojunction photodiode fabricated on steel firstly exhibits dual-mode broadband photodetection from ultraviolet to near infrared spectrum. In the photovoltaic mode, the CIGS photodiode, working as a self-driven photodetector, shows an outstanding photodetection capability (under a light power density of 20 µW cm−2 at...
conference paper 2022
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Ruiz-Preciado, M.A. (author), Gota, F. (author), Fassl, P. (author), Hossain, I.M. (author), Singh, R. (author), Laufer, F. (author), Schackmar, F. (author), Feeney, T. (author), Farag, A. (author), Allegro, I. (author), Hu, H. (author), Gharibzadeh, S. (author), Nejand, B.A. (author), Gevaerts, V.S. (author), Simor, M. (author), Bolt, P.J. (author), Paetzold, U.W. (author)
Monolithic two-terminal (2T) perovskite/CuInSe2 (CIS) tandem solar cells (TSCs) combine the promise of an efficient tandem photovoltaic (PV) technology with the simplicity of an all-thin-film device architecture that is compatible with flexible and lightweight PV. In this work, we present the first-ever 2T perovskite/CIS TSC with a power...
article 2022
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De Biasio, M. (author), Zikulnig, J. (author), Muehleisen, W. (author), Kraft, M. (author), Simor, M. (author), Bolt, P.J. (author)
Copper Indium Gallium Selenide (CIGS) thin-film solar cells are a promising technology, but inline quality inspection systems are required for efficient high-volume production. Tests with two candidate methods: Raman spectroscopy and photo-luminescence imaging, are reported in this paper. The methods were used to estimate material compositions...
conference paper 2021
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Ulbikas, J. (author), Ulbikaite, V. (author), Denafas, J. (author), Witteck, R. (author), Kontges, M. (author), Topic, M. (author), Frontini, F. (author), Bonomo, P. (author), MacE, P. (author), Bolt, P.J. (author), Ulyashin, A. (author), Haarberg, T. (author), Palitzsch, W. (author), Terheiden, B. (author), Weiss, I. (author), Fuentes, A. (author)
PV deployment growth is an unmatched success story in the energy sector over recent years. However, European PV manufacturers are facing a decline in production due to competition from third countries. The fragmentation of the value chain is believed to be one of the major factor for this decrease in the competitiveness. SUPER PV is a...
conference paper 2019
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Kovacic, M. (author), Krc, J. (author), Lipovsek, B. (author), Chen, W.C. (author), Edoff, M. (author), Bolt, P.J. (author), van Deelen, J. (author), Zhukova, M. (author), Lontchi, J. (author), Flandre, D. (author), Salomé, P. (author), Topic, M. (author)
In ultra-thin chalcopyrite solar cells and photovoltaic modules, efficient light management is required to increase the photocurrent and to gain in conversion efficiency. In this work we employ optical modelling to investigate different optical approaches and quantify their potential improvements in the short-circuit current density of Cu(In, Ga...
article 2019
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Frijters, C.H. (author), Bolt, P.J. (author), Poodt, P. (author), Knaapen, R. (author), van den Brink, J. (author), Ruth, M. (author), Bremaud, D. (author), Illiberi, A. (author)
In this manuscript we present the first successful application of a spatial atomic-layer-deposition process to thin film solar cells. Zn(O,S) has been grown by spatial atomic layer deposition (S-ALD) at atmospheric pressure and applied as buffer layer in rigid and flexible CIGS cells by a lab-scale (15×15 cm2) S-ALD set-up. We achieved values of...
conference paper 2017
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Frijters, C.H. (author), Bolt, P.J. (author), Poodt, P.W.G. (author), Knaapen, R. (author), van den Brink, J. (author), Ruth, M. (author), Bremaud, D. (author), Illiberi, A. (author)
In this manuscript we present the first successful application of a spatial atomic-layer-deposition process to thin film solar cells. Zn(O,S) has been grown by spatial atomic layer deposition (S-ALD) at atmospheric pressure and applied as buffer layer in rigid and flexible CIGS cells by a lab-scale (15x15 cm2) S-ALD set-up. We achieved values of...
conference paper 2016
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Frijters, C. (author), Bolt, P.J. (author), Poodt, P. (author), Roozeboom, F. (author), Illiberi, A. (author)
public lecture 2016
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Perpiñà, X. (author), Werkhoven, R.J. (author), Vellvehi, M. (author), Jakovenko, J. (author), Jordà, X. (author), Kunen, J.M.G. (author), Bancken, P. (author), Bolt, P.J. (author)
This paper studies the thermal influence of a light-emitting diode (LED) driver on a retrofit LED lamp, also reporting on a procedure for its thermal characterization and multiscale modeling. In this analysis, temperature is measured by infrared thermography and monitoring specific locations with thermocouples. Experimental results point out...
article 2015
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Illiberi, A. (author), Grob, F. (author), Kniknie, B. (author), Frijters, C. (author), van Deelen, J. (author), Poodt, P. (author), Beckers, E.H.A. (author), Bolt, P.J. (author)
ZnO films have been grown on a moving glass substrate by high temperature (480 0C) chemical vapour deposition (CVD) and low temperature (200 0C) plasma enhanced CVD (PE-CVD) process at atmospheric pressure. Deposition rates above 7 nm/s have been achieved for substrate speeds from 20 to 500 mm/min. The conductivity of the films is enhanced by Al...
article 2014
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Ghosh, M. (author), Miroux, A. (author), Werkhoven, R.J. (author), Bolt, P.J. (author), Kestens, L.A.I. (author)
The increasing use of aluminium alloys in light weight structural applications is restricted mainly due to their lower room temperature formability compared to steels. Forming at higher temperature is seen as a promising solution to this problem. In the present investigation two Al-Mg-Si alloys (EN AW-6016 and EN AW-6061) were deep-drawn at room...
article 2014
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Vellvehi, M. (author), Perpina, X. (author), Jorda, X. (author), Werkhoven, R.J. (author), Kunen, J.M.G. (author), Jakovenko, J. (author), Bancken, P. (author), Bolt, P.J. (author)
This work deals with the extraction of key thermal parameters for accurate thermal modelling of LED lamps: air exchange coefficient around the lamp, emissivity and thermal conductivity of all lamp parts. As a case study, an 8W retrofit lamp is presented. To assess simulation results, temperature is monitored on the lamp by infrared thermography...
conference paper 2013
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Illiberi, A. (author), Grob, F. (author), Frijters, C. (author), Poodt, P. (author), Ramachandra, R. (author), Winands, H. (author), Simor, M. (author), Bolt, P.J. (author)
Undoped zinc oxide (ZnO) films have been grown on a moving glass substrate by plasma-enhanced chemical vapor deposition at atmospheric pressure. High deposition rates of ∼7 nm/s are achieved at low temperature (200°C) for a substrate speed from 20 to 60 mm/min. ZnO films are highly transparent in the visible range (90%). By a short (∼minute)...
article 2013
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Jakovenko, J. (author), Formánek, J. (author), Perpiñà, X. (author), Jorda, X. (author), Vellvehi, M. (author), Werkhoven, R.J. (author), Husák, M. (author), Kunen, J.M.G. (author), Bancken, P. (author), Bolt, P.J. (author), Gasse, A. (author)
This work presents a comparison of various LED board technologies from thermal, mechanical and reliability point of view provided by an accurate 3-D modelling. LED boards are proposed as a possible technology replacement of FR4 LED boards used in 400 lumen retrofit SSL lamps. Presented design methodology can be used for other high power SSL lamp...
article 2013
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Theelen, M.J. (author), Habets, D. (author), Staemmler, L. (author), Winands, H. (author), Bolt, P.J. (author)
Organosilicon coatings provide good optical and mechanical properties and are excellent candidates for the modification of the surface energy of polymers. These coatings can be deposited by plasma polymerization of hexamethyldisiloxane (HMDSO) under atmospheric pressure and at room temperature. The resulting films can range from soft,...
article 2012
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Jakovenko, J. (author), Formánek, J. (author), Pardo, B. (author), Perpiñà, X. (author), Werkhoven, R.J. (author), Kunen, J.M.G. (author), Bancken, P. (author), Bolt, P.J. (author)
This work deals with a precise 3-D modelling of several LED board technologies mainly focused on thermal, thermo-mechanical evaluation and life time prediction to compare their performances. Main role of each LED board is to transport heat from LED die to heat sink and keep the thermal stresses in all layers as low as possible. Thermal stress...
conference paper 2012
document
Perpiñà, X. (author), Werkhoven, R.J. (author), Vellvehi, M. (author), Jordà, X. (author), Kunen, J.M.G. (author), Jakovenko, J. (author), Bancken, P. (author), Bolt, P.J. (author)
This paper summarizes a study into the thermal influence of an LED driver board on an SSL Lamp. Full thermal characterization of an LED lamp and driver board is carried out by infrared thermography and by monitoring specific locations with thermocouples. The experimental results have been used to set up and validate a predictive simulation model...
conference paper 2012
document
Perpiñà, X. (author), Werkhoven, R.J. (author), Jakovenko, J. (author), Formánek, J. (author), Vellvehi, M. (author), Jordà, X. (author), Kunen, J.M.G. (author), Bancken, P. (author), Bolt, P.J. (author)
This work presents a methodology to design an SSL system for reliability. An LED lamp is thermally characterised and its model thermally simulated, indicating that the LED board (FR4 board with thermal vias, copper tracks and LED package) is the thermally most stressed part. Therefore, a thermo-mechanical analysis is performed from a detailed...
article 2012
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Jakovenko, J. (author), Werkhoven, R.J. (author), Formánek, J. (author), Kunen, J.M.G. (author), Bolt, P.J. (author), Kulha, P. (author)
This work deals with thermal simulation and characterization of solid state lightening (SSL) LED Lamp in order to get precise 3D thermal models for further lamp thermal optimization. Simulations are performed with ANSYS-CFX and CoventorWare software tools. The simulated thermal distribution has been validated with thermal measurement on a...
conference paper 2011
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Bolt, P.J. (author), Theelen, M.J. (author), Habets, D. (author), Winands, G.J.J. (author), Staemmler, L. (author)
For the modification of the surface energy of polymers, organosilicon coatings provide good optical and mechanical properties and are excellent candidates for the modification of the surface energy of polymers. These coatings can be deposited by plasma polymerization of hexamethyldisiloxane (HMDSO) under atmospheric pressure and at room...
article 2011
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