Improved efficiency of polymer-fullerene bulk heterojunction solar cells by the addition of Cu(II)-porphyrin-oligothiophene conjugates

Stoltzfus, Dani M.; Kesters, Jurgen; Kelchtermans, Mathias; Verstappen, Pieter; Cardinaletti, Ilaria; Cornelissen, Rob; D’Haen, Jan; Lutsen, Laurence; Vanderzande, Dirk; Manca, Jean; Bielawski, Christopher W.; Maes, Wouter; Sessler, Jonathan L.

doi:10.1016/j.synthmet.2016.04.026

Cited by 4 publications

(2 citation statements)

References 77 publications

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“…Se contemplan dispositivos fotovoltaicos orgánicos ternarios que se prepararon de acuerdo a pequeñas cantidades de metaloporfina-tertiofen en las mezclas de fullereno, la cual repercute de manera directa en la eficiencia de conversión de energía del dispositivo, con un valor inicial del 5,1%, que a su vez condujo un aumento del 16%, resultados que se compararon con otra mezcla binaria. Además, entre las cantidades aplicadas de metaloporfinas, se encuentra que el Cu (ii) porfirina aplicado en la mezcla desarrolla una mejora significativa en la eficiencia [64].…”

Section: áNodounclassified

Tendencias en ingeniería de materiales para la fabricación de células solares fotovoltáicas

Hurtado¹,

Rojas²

2017

ing. Solidar

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Introducción: el artículo de revisión fue desarrollado durante el segundo semestre del 2016 y el primero del 2017 en la Facultad de Ingeniería Ambiental de la Universidad Santo Tomás. La energía solar fotovoltaica ha adquirido un importante papel en el contexto global por el uso de fuentes renovables y disminución de impactos ambientales, además de ser un participe influyente en la satisfacción de la demanda energética actual. No obstante, esta cuenta con limitaciones como la dependencia de la disponibilidad de radiación y el uso de silicio como materia prima de las células solares. Metodología: se realizó un estado del arte de diferentes bases de datos consultadas, en su mayoría Science Direct y Scopus, sobre los diferentes materiales alternativos y tendencias actuales, y su perspectiva de funcionamiento e implementación. Resultados: se exponen las células solares que están empleando diversos materiales, dentro de las cuales destacan las de Teluro de Cadmio (CdTe) que presentan características de bajo costo y considerables eficiencias. Conclusión: las células de cobre, indio, galio, selenio/azufre (cigs) presentan como característica principal el alto coeficiente de adsorción; no obstante, el gran reto por superar es llevar a cabo su implementación en un ámbito industrial. Las células solares orgánicas presentan una alta eficiencia y un bajo costo para su posible uso en el contexto colombiano.

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Section: áNodounclassified

Tendencias en ingeniería de materiales para la fabricación de células solares fotovoltáicas

Hurtado¹,

Rojas²

2017

ing. Solidar

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“…The optical and electronic interplay of these molecular moieties is, however, more widely being taken advantage of in the field of optoelectronics and photovoltaics. 122,123 Examples of polymeric thiophene-porphyrin conjugates and complexes can be found in literature, where the interactions of these structural moieties give rise to optical readouts for detecting bacteria 124 and eukaryotic cells 125 , or where such compounds are used for photodynamic inactivation of bacteria 126 and fungi 127 .…”

Section: Oligothiophene Porphyrin Hybrids As Fluorescent Probesmentioning

confidence: 99%

Multimodal Porphyrin-Based Conjugates: Synthesis and characterization for applications as amyloid ligands, photodynamic therapy agents and chiroptical materials

Arja¹

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Organic compounds that interact both with certain biological targets and display specific photophysical properties can be utilized as molecular tools to visualize and possibly affect disease related processes taking place in living organisms. In this regard, porphyrins are a class of naturally occurring molecules that possess intriguingly interesting photophysical properties where they can act as luminescent probes by emitting detectable light, as well as photosensitizers in the light mediated therapy denoted photodynamic therapy. In this thesis, the porphyrin structure has been synthetically combined with other types of molecules to achieve compounds with desirable multimodal characteristics. During my doctoral studies at Chemistry department at Linköping university, several people have contributed to the scientific work that I carried out, helped me with the everyday matters or supported me in general. I would like to thank all these fantastic people and especially acknowledge some of them: Professor Peter Nilsson, my supervisor, for all the guidance and support through the years. You are an expert on helping me see the possibilities in seemingly tiny things that would eventually lead to fascinating research projects. Professor Peter Konradsson, my co-supervisor, for the help in navigating in the world of organic chemistry and for the all the philosophical discussions about the rest of the world. All the past and present members of the Nilsson group: Therése for always being the wise and calm ideal of a researcher; Hamid with his never-disturbed and inspiring enthusiasm in synthetic chemistry; the chatty and positive Bisse for all her advice on chemistry and life, and for all the enjoyable coffee breaks and lunches; Elisabet for being one of the few downright good people left in this world and surely one of the persons with the highest number of different interests; Hanna for the fruitful collaborations and pleasant company; Karin, Rozalyn, Leffe, Jeff, Andreas, Timmy and Mikaela for all the help and for all the memorable moments at works. Mathias Elgland, another downright good person with a plethora of positive qualities ranging from being an excellent chemist to a worthy friend. I am deeply grateful for all the scientific collaborations and the friendship along the side. Thank you for your most enjoyable company over my many years at Linköping university! Linda Lantz, my roomie and a dear colleague and a friend, for cheering my days with interesting scientific and even more interesting non-scientific talk. You inspire with you strong and independent angles of life philosophy. Marcus Bäck, for being a truly understanding and reliable friend and a helpful colleague, and for backing me up with "Det gör du rätt i". Jakob Wallgren for m/baking my days with all these splendid pastries and with your pleasant company! People in Organic chemistry corridor: Xiongyu Wu, a true sensei in chemistry; Yun, Tobias, Roger.

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Increasing the lifetimes of charge separated states in porphyrin–fullerene polyads

Gao

Aly

Karsenti

et al. 2017

Phys. Chem. Chem. Phys.

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Two linear polyads were designed using zinc(ii)porphyrin, [ZnP], and N-methyl-2-phenyl-3,4-fullero-pyrrolidine (C) where C is dangling either at the terminal position of [ZnP]-CH-[triple bond, length as m-dash]-CH-[ZnP]-C (1) or at the central position of [ZnP]-CH-[triple bond, length as m-dash]-CH-[ZnP(C)]-CH-[triple bond, length as m-dash]-CH-[ZnP] (2) in order to test whether the fact of having one or two side electron donors influences the rate of electron transfer, k. These polyads were studied using cyclic voltammograms, DFT computations, steady state and time-resolved fluorescence spectroscopy, and femtosecond transient absorption spectroscopy (fs-TAS). Photo-induced electron transfer confirmed by the detection of the charge separated state [ZnP˙+]/C˙ from fs-TAS occurs with rates (k) of 3-4 × 10 s whereas the charge recombinations (CRs) are found to produce the [ZnP] ground state via two pathways (central [ZnP˙+]/C˙ (ps) and terminal central [ZnP˙+]/C˙ (ns) producing [1ZnP] (ground state) and [3ZnP*]). The formation of the T species is more predominant for 2.

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Improved efficiency of polymer-fullerene bulk heterojunction solar cells by the addition of Cu(II)-porphyrin-oligothiophene conjugates

Cited by 4 publications

References 77 publications

Tendencias en ingeniería de materiales para la fabricación de células solares fotovoltáicas

Tendencias en ingeniería de materiales para la fabricación de células solares fotovoltáicas

Multimodal Porphyrin-Based Conjugates: Synthesis and characterization for applications as amyloid ligands, photodynamic therapy agents and chiroptical materials

Increasing the lifetimes of charge separated states in porphyrin–fullerene polyads

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