Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Bjarke R Jeppesen"'
Autor:
Ali Akbar Darki, Alexios Parthenopoulos, Aurélien Dantan, Bjarke R. Jeppesen, Jens Vinge Nygaard
Publikováno v:
Darki, A A, Parthenopoulos, A, Jeppesen, B R, Nygaard, J V & Dantan, A 2021, Suspended subwavelength gratings for optical processing and optomechanics . in C J Chang-Hasnain, J A Fan & W Zhou (eds), High Contrast Metastructures X ., 116951N, SPIE-International Society for Optical Engineering, Proceedings of SPIE-The International Society for Optical Engineering, vol. 11695, High Contrast Metastructures X 2021, Virtual, Online, United States, 06/03/2021 . https://doi.org/10.1117/12.2585455
Owing to their high optical and mechanical quality suspended silicon nitride thin films are widely used for photonics and sensing applications. We discuss the fabrication and characterization of highly reflective one- dimensional subwavelength gratin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e2fbb910a6a3326389adb54551c2b03
https://pure.au.dk/portal/da/publications/suspended-subwavelength-gratings-for-optical-processing-and-optomechanics(52a044f5-6f55-4607-b05e-bc626cfbd8ac).html
https://pure.au.dk/portal/da/publications/suspended-subwavelength-gratings-for-optical-processing-and-optomechanics(52a044f5-6f55-4607-b05e-bc626cfbd8ac).html
Publikováno v:
Parthenopoulos, A, Darki, A A, Jeppesen, B R & Dantan, A R 2021, ' Optical spatial differentiation with suspended subwavelength gratings ', Optics Express, vol. 29, no. 5, pp. 6481-6494 . https://doi.org/10.1364/OE.416801
We investigate first- and second-order spatial differentiation of an optical beam transverse profile using guided-mode resonances in thin, suspended subwavelength gratings. Highly reflective one-dimensional gratings are patterned on freestanding 200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c55af2b323cee6fe05144c5f0627fb69
Autor:
Jacques Chevallier, Sanjay K. Ram, Folmer Lyckegaard, Rita Rizzoli, Pia Jensen, M. Bellettato, Arne Nylandsted Larsen, Peter Balling, Caterina Summonte, Derese Desta, Bjarke R. Jeppesen
Publikováno v:
Ram, S K, Desta, D, Rizzoli, R, Bellettato, M, Lyckegaard, F, Jensen, P B, Jeppesen, B R, Chevallier, J, Summonte, C, Larsen, A N & Balling, P 2017, ' Combining light-harvesting with detachability in high-efficiency thin-film silicon solar cells ', Nanoscale, vol. 9, no. 21, pp. 7169-7178 . https://doi.org/10.1039/c7nr00658f
Efforts to realize thin-film solar cells on unconventional substrates face several obstacles in achieving good energy-conversion efficiency and integrating light-management into the solar cell design. In this report a technique to circumvent these ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31421b0c116633cef0459a32a4398fb2
https://doi.org/10.1039/c7nr00658f
https://doi.org/10.1039/c7nr00658f
Publikováno v:
Nair, B, Næsby, A, Jeppesen, B R & Dantan, A R 2019, ' Suspended silicon nitride thin films with enhanced and electrically tunable reflectivity ', Physica Scripta, vol. 94, no. 12, 125013 . https://doi.org/10.1088/1402-4896/ab3d6f
We report on the realization of silicon nitride membranes with enhanced and electrically tunable reflectivity. A subwavelength one-dimensional grating is directly patterned on a suspended 200 nm-thick, high stress commercial film using electron beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fba4859ce2a730e1ffcfdc804a10a21
https://pure.au.dk/portal/da/publications/suspended-silicon-nitride-thin-films-with-enhanced-and-electrically-tunable-reflectivity(6ce8321f-ab8a-416a-a5a9-1e2aad75652a).html
https://pure.au.dk/portal/da/publications/suspended-silicon-nitride-thin-films-with-enhanced-and-electrically-tunable-reflectivity(6ce8321f-ab8a-416a-a5a9-1e2aad75652a).html
Autor:
Brian Julsgaard, Morten Madsen, Søren H. Møller, Emil H. Eriksen, Harish Lakhotiya, Pia Jensen, Peter Balling, Jeppe Christiansen, Rasmus E. Christiansen, John Lundsgaard Hansen, Adnan Nazir, Søren Madsen, Ole Sigmund, Joakim Vester-Petersen, Bjarke R. Jeppesen, Sanjay K. Ram, Mina Mirsafaei
Publikováno v:
Balling, P, Christiansen, J, Christiansen, R E, Eriksen, E, Lakhotiya, H, Mirsafaei, M, Moller, S H, Nazir, A, Vester-Petersen, J, Jeppesen, B R, Jensen, P B, Hansen, J L, Ram, S K, Sigmund, O, Madsen, M, Madsen, S P & Julsgaard, B 2018, ' Improving the efficiency of solar cells by upconverting sunlight using field enhancement from optimized nano structures ', Optical Materials, vol. 83, pp. 279-289 . https://doi.org/10.1016/j.optmat.2018.06.038
Balling, P, Christiansen, J, Christiansen, R E, Eriksen, E, Lakhotiya, H, Mirsafaei, M, Møller, S H, Nazir, A, Vester-Petersen, J, Jeppesen, B R, Jensen, P B, Hansen, J L, Ram, S K, Sigmund, O, Madsen, M, Madsen, S P & Julsgaard, B 2018, ' Improving the efficiency of solar cells by upconverting sunlight using field enhancement from optimized nano structures ', Optical Materials, vol. 83, pp. 279-289 . https://doi.org/10.1016/j.optmat.2018.06.038
Balling, P, Christiansen, J, Christiansen, R E, Eriksen, E, Lakhotiya, H, Mirsafaei, M, Møller, S H, Nazir, A, Vester-Petersen, J, Jeppesen, B R, Jensen, P B, Hansen, J L, Ram, S K, Sigmund, O, Madsen, M, Madsen, S P & Julsgaard, B 2018, ' Improving the efficiency of solar cells by upconverting sunlight using field enhancement from optimized nano structures ', Optical Materials, vol. 83, pp. 279-289 . https://doi.org/10.1016/j.optmat.2018.06.038
Spectral conversion of the sunlight has been proposed as a method for enhancing the efficiency of photovoltaicvdevices, which are limited in current production by the mismatch between the solar spectrum and the wavelength range for efficient carrier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91583c5393916c86c677193d11dc55df
https://pure.au.dk/portal/da/publications/improving-the-efficiency-of-solar-cells-by-upconverting-sunlight-using-field-enhancement-from-optimized-nano-structures(e7b39213-6160-4001-ab41-c480aacecf44).html
https://pure.au.dk/portal/da/publications/improving-the-efficiency-of-solar-cells-by-upconverting-sunlight-using-field-enhancement-from-optimized-nano-structures(e7b39213-6160-4001-ab41-c480aacecf44).html
Autor:
Sanjay K. Ram, Derese Desta, Rita Rizzoli, Michele Bellettato, Folmer Lyckegaard, Pia B. Jensen, Bjarke R. Jeppesen, Jacques Chevallier, Caterina Summonte, Arne Nylandsted Larsen, Peter Balling
Publikováno v:
Nanoscale (Online) 9 (2017): 7169–7178. doi:10.1039/c7nr00658f
info:cnr-pdr/source/autori:Sanjay K. Ram, Derese Desta, Rita Rizzoli, Michele Bellettato, Folmer Lyckegaard, Pia B. Jensen, Bjarke R. Jeppesen, Jacques Chevallier, Caterina Summonte, Arne Nylandsted Larsen and Peter Balling/titolo:Combining light-harvesting with detachability in high-efficiency thin-film silicon solar cellse anno di pubblicazione/doi:10.1039%2Fc7nr00658f/rivista:Nanoscale (Online)/anno:2017/pagina_da:7169/pagina_a:7178/intervallo_pagine:7169–7178/volume:9
info:cnr-pdr/source/autori:Sanjay K. Ram, Derese Desta, Rita Rizzoli, Michele Bellettato, Folmer Lyckegaard, Pia B. Jensen, Bjarke R. Jeppesen, Jacques Chevallier, Caterina Summonte, Arne Nylandsted Larsen and Peter Balling/titolo:Combining light-harvesting with detachability in high-efficiency thin-film silicon solar cellse anno di pubblicazione/doi:10.1039%2Fc7nr00658f/rivista:Nanoscale (Online)/anno:2017/pagina_da:7169/pagina_a:7178/intervallo_pagine:7169–7178/volume:9
Efforts to realize thin-film solar cells on unconventional substrates face several obstacles in achieving good energy-conversion efficiency and integrating light-management into the solar cell design. In this report a technique to circumvent these ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=cnr_________::21d27b74f20e0312d02353e07be97549
http://www.cnr.it/prodotto/i/386052
http://www.cnr.it/prodotto/i/386052
Autor:
Pia Jensen, M. Bellettato, Rui N. Pereira, Peter Balling, Arne Nylandsted Larsen, Sanjay K. Ram, Caterina Summonte, Rita Rizzoli, Bruno P. Falcão, Derese Desta, Bjarke R. Jeppesen, Emil H. Eriksen
Publikováno v:
Nano Energy 35 (2017): 341–349. doi:10.1016/j.nanoen.2017.04.016
info:cnr-pdr/source/autori:Sanjay K. Ram,?, Derese Desta, Rita Rizzoli, Bruno P. Falcão, Emil H. Eriksen, Michele Bellettato, Bjarke R. Jeppesen, Pia B. Jensen, Caterina Summonte, Rui N. Pereira, Arne Nylandsted Larsen, Peter Balling/titolo:Efficient light-trapping with quasi-periodic uniaxial nanowrinkles for thinfilm silicon solar cells/doi:10.1016%2Fj.nanoen.2017.04.016/rivista:Nano Energy/anno:2017/pagina_da:341/pagina_a:349/intervallo_pagine:341–349/volume:35
Ram, S K, Desta, D, Rizzoli, R, Falcao, B P, Eriksen, E H, Bellettato, M, Jeppesen, B R, Jensen, P B, Summonte, C, Pereira, R N, Larsen, A N & Balling, P 2017, ' Efficient light-trapping with quasi-periodic uniaxial nanowrinkles for thin-film silicon solar cells ', Nano Energy, vol. 35, pp. 341-349 . https://doi.org/10.1016/j.nanoen.2017.04.016
info:cnr-pdr/source/autori:Sanjay K. Ram,?, Derese Desta, Rita Rizzoli, Bruno P. Falcão, Emil H. Eriksen, Michele Bellettato, Bjarke R. Jeppesen, Pia B. Jensen, Caterina Summonte, Rui N. Pereira, Arne Nylandsted Larsen, Peter Balling/titolo:Efficient light-trapping with quasi-periodic uniaxial nanowrinkles for thinfilm silicon solar cells/doi:10.1016%2Fj.nanoen.2017.04.016/rivista:Nano Energy/anno:2017/pagina_da:341/pagina_a:349/intervallo_pagine:341–349/volume:35
Ram, S K, Desta, D, Rizzoli, R, Falcao, B P, Eriksen, E H, Bellettato, M, Jeppesen, B R, Jensen, P B, Summonte, C, Pereira, R N, Larsen, A N & Balling, P 2017, ' Efficient light-trapping with quasi-periodic uniaxial nanowrinkles for thin-film silicon solar cells ', Nano Energy, vol. 35, pp. 341-349 . https://doi.org/10.1016/j.nanoen.2017.04.016
Self-organizing nanopatterns can enable economically competitive, industrially applicable light-harvesting platforms for thin-film solar cells. In this work, we present transparent solar cell substrates having quasi-periodic uniaxial nanowrinkle patt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::556bc086491096f69a123f3f32124105
Publikováno v:
Samatov, I, Jeppesen, B R, Larsen, A N & Ram, S 2016, ' Room-temperature rf-magnetron sputter-deposited W-doped indium oxide: Decoupling the influence of W dopant and O vacancies on the film properties ', Applied Physics A: Materials Science & Processing, vol. 122, 122:458, pp. 1-10 . https://doi.org/10.1007/s00339-016-9983-0
Tungsten-doped indium oxide (IWO) thin films were deposited at room temperature using rf-magnetron sputtering. The optical, electrical, and structural properties of the IWO films were studied as functions of the O2-dilution fraction in the Ar sputter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bec367cf0841ad8a86a340593a450c8
https://doi.org/10.1007/s00339-016-9983-0
https://doi.org/10.1007/s00339-016-9983-0
Autor:
Pia Jensen, Caterina Summonte, Bjarke R. Jeppesen, Derese Desta, Peter Balling, M. Bellettato, Rui N. Pereira, Yao Chung Tsao, Hartmut Wiggers, Arne Nylandsted Larsen, Sanjay K. Ram, Rita Rizzoli
Publikováno v:
Desta, D, Ram, S, Rizzoli, R, Bellettato, M, Summonte, C, Jeppesen, B R, Jensen, P B, Tsao, Y-C, Wiggers, H, Pereira, R N, Balling, P & Larsen, A N 2016, ' Novel back-reflector architecture with nanoparticle based buried light-scattering microstructures for improved solar cell performance ', Nanoscale, no. 23, 8, pp. 12035-12046 . https://doi.org/10.1039/c6nr00259e
Desta, D, Ram, S K, Rizzoli, R, Bellettato, M, Summonte, C, Jeppesen, B R, Jensen, P B, Tsao, Y C, Wiggers, H, Marques Pereira, R N, Balling, P & Larsen, A N 2016, ' Novel back-reflector architecture with nanoparticle based buried light-scattering microstructures for improved solar cell performance ', Nanoscale, vol. 8, no. 23, pp. 12035-12046 . https://doi.org/10.1039/c6nr00259e
Nanoscale
8 (2016): 12035–12046. doi:10.1039/c6nr00259e
info:cnr-pdr/source/autori:Desta, Derese; Ram, Sanjay K.; Rizzoli, Rita; Bellettato, Michele; Summonte, Caterina; Jeppesen, Bjarke R.; Jensen, Pia B.; Tsao, Yao-Chung; Wiggers, Hartmut; Pereira, Rui N.; Balling, Peter; Larsen, Arne Nylandsted/titolo:Novel back-reflector architecture with nanoparticle based buried light-scattering microstructures for improved solar cell performance/doi:10.1039%2Fc6nr00259e/rivista:Nanoscale (Print)/anno:2016/pagina_da:12035/pagina_a:12046/intervallo_pagine:12035–12046/volume:8
Desta, D, Ram, S K, Rizzoli, R, Bellettato, M, Summonte, C, Jeppesen, B R, Jensen, P B, Tsao, Y C, Wiggers, H, Marques Pereira, R N, Balling, P & Larsen, A N 2016, ' Novel back-reflector architecture with nanoparticle based buried light-scattering microstructures for improved solar cell performance ', Nanoscale, vol. 8, no. 23, pp. 12035-12046 . https://doi.org/10.1039/c6nr00259e
Nanoscale
8 (2016): 12035–12046. doi:10.1039/c6nr00259e
info:cnr-pdr/source/autori:Desta, Derese; Ram, Sanjay K.; Rizzoli, Rita; Bellettato, Michele; Summonte, Caterina; Jeppesen, Bjarke R.; Jensen, Pia B.; Tsao, Yao-Chung; Wiggers, Hartmut; Pereira, Rui N.; Balling, Peter; Larsen, Arne Nylandsted/titolo:Novel back-reflector architecture with nanoparticle based buried light-scattering microstructures for improved solar cell performance/doi:10.1039%2Fc6nr00259e/rivista:Nanoscale (Print)/anno:2016/pagina_da:12035/pagina_a:12046/intervallo_pagine:12035–12046/volume:8
A new back-reflector architecture for light-management in thin-film solar cells is proposed that includes a morphologically smooth top surface with light-scattering microstructures buried within. The microstructures are pyramid shaped, fabricated on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::560086e972070769d675284b9c1ed181
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=84974588024
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=84974588024
Autor:
Kjeld Møller Pedersen, Peter Balling, Yao-Chung Tsao, Pekka T. Neuvonen, Sanjay K. Ram, Ivan Samatov, Thomas Garm Pedersen, Rita Rizzoli, Sabrina R. Johannsen, Arne Nylandsted Larsen, M. Bellettato, Rui N. Pereira, Derese Desta, Bjarke R. Jeppesen
Publikováno v:
Journal of physics. D, Applied physics
48 (2015): 365101–365111. doi:10.1088/0022-3727/48/36/365101
info:cnr-pdr/source/autori:Ram, Sanjay K.; Rizzoli, Rita; Desta, Derese; Jeppesen, Bjarke R.; Bellettato, Michele; Samatov, Ivan; Tsao, Yao Chung; Johannsen, Sabrina R.; Neuvonen, Pekka T.; Pedersen, Thomas Garm; Pereira, Rui N.; Pereira, Rui N.; Pedersen, Kjeld; Balling, Peter; Larsen, Arne Nylandsted/titolo:Directly patterned TiO2<%2Finf> nanostructures for efficient light harvesting in thin film solar cells/doi:10.1088%2F0022-3727%2F48%2F36%2F365101/rivista:Journal of physics. D, Applied physics (Print)/anno:2015/pagina_da:365101/pagina_a:365111/intervallo_pagine:365101–365111/volume:48
Ram, S, Rizolli, R, Desta, D, Jeppesen, B R, Bellettato, M, Samatov, I, Tsao, Y-C, Johannsen, S R, Neuvonen, P T, Pedersen, T G, Marques Pereira, R N, Pedersen, K, Balling, P & Larsen, A N 2015, ' Directly patterned TiO2 nanostructures for efficient light harvesting in thin film solar cells ', Journal of Physics D: Applied Physics, vol. 48, no. 36 . https://doi.org/10.1088/0022-3727/48/36/365101
Ram, S K, Rizzoli, R, Desta, D, Jeppesen, B R, Bellettato, M, Samatov, I, Tsao, Y-C, Johannsen, S R, Neuvonen, P T, Pedersen, T G, Pereira, R N, Pedersen, K, Balling, P & Larsen, A N 2015, ' Directly patterned TiO 2 nanostructures for efficient light harvesting in thin film solar cells ', Journal of Physics D: Applied Physics, vol. 48, no. 36, 365101 . https://doi.org/10.1088/0022-3727/48/36/365101
48 (2015): 365101–365111. doi:10.1088/0022-3727/48/36/365101
info:cnr-pdr/source/autori:Ram, Sanjay K.; Rizzoli, Rita; Desta, Derese; Jeppesen, Bjarke R.; Bellettato, Michele; Samatov, Ivan; Tsao, Yao Chung; Johannsen, Sabrina R.; Neuvonen, Pekka T.; Pedersen, Thomas Garm; Pereira, Rui N.; Pereira, Rui N.; Pedersen, Kjeld; Balling, Peter; Larsen, Arne Nylandsted/titolo:Directly patterned TiO2<%2Finf> nanostructures for efficient light harvesting in thin film solar cells/doi:10.1088%2F0022-3727%2F48%2F36%2F365101/rivista:Journal of physics. D, Applied physics (Print)/anno:2015/pagina_da:365101/pagina_a:365111/intervallo_pagine:365101–365111/volume:48
Ram, S, Rizolli, R, Desta, D, Jeppesen, B R, Bellettato, M, Samatov, I, Tsao, Y-C, Johannsen, S R, Neuvonen, P T, Pedersen, T G, Marques Pereira, R N, Pedersen, K, Balling, P & Larsen, A N 2015, ' Directly patterned TiO2 nanostructures for efficient light harvesting in thin film solar cells ', Journal of Physics D: Applied Physics, vol. 48, no. 36 . https://doi.org/10.1088/0022-3727/48/36/365101
Ram, S K, Rizzoli, R, Desta, D, Jeppesen, B R, Bellettato, M, Samatov, I, Tsao, Y-C, Johannsen, S R, Neuvonen, P T, Pedersen, T G, Pereira, R N, Pedersen, K, Balling, P & Larsen, A N 2015, ' Directly patterned TiO 2 nanostructures for efficient light harvesting in thin film solar cells ', Journal of Physics D: Applied Physics, vol. 48, no. 36, 365101 . https://doi.org/10.1088/0022-3727/48/36/365101
A novel, scalable, and low-cost strategy for fabricating sub-wavelength scale hierarchical nanostructures by direct patterning of TiO2 nanoparticles on glass substrates is reported. Two nanostructural designs of light-trapping back-surface reflectors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff309c2bc206306408cbfd4a1bd83023
https://publications.cnr.it/doc/348851
https://publications.cnr.it/doc/348851