Journal ArticleDOI
Enhancement of Exciton Dissociation Efficiency in Bulk Heterojunction Solar Cells by Using an Intrinsic Photoconductor Component
Upendra K. Pandey,Roberto Termine,Andreea Ionescu,Nicolas Godbert,Maria Penelope De Santo,Mauro Ghedini,Attilio Golemme +6 more
TLDR
In this paper, a new type of intrinsic photoconductor was used as a donor in bulk heterojunction solar cells, in blends with PCBM, and the photoconducting properties of the complex were characterized.Abstract:
A new type of intrinsic photoconductor was used as a donor in bulk heterojunction solar cells, in blends with PCBM. The donor is a square planar cyclopalladated coordination complex, with a Nile red moiety and a Schiff base as ligands, coordinated by a Pd(II) metal center. The photoconducting properties of the complex were characterized. Photovoltaic devices exhibit low performance, but the analysis of the wavelength dependence of the efficiency reveals a much higher photocurrent upon absorption of the complex, when compared to the photocurrent obtained via absorption by PCBM. This effect is tied to the higher tendency of the intrinsic photoconductor towards exciton dissociation at the heterojunction.read more
Citations
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Journal ArticleDOI
Adsorption of Nile Red Self-Assembled Monolayers on Au(111).
Oreste De Luca,T. Caruso,Marco Turano,Andreea Ionescu,Nicolas Godbert,Iolinda Aiello,Mauro Ghedini,Vincenzo Formoso,Raffaele Giuseppe Agostino +8 more
TL;DR: The ability of Nile Red to self-assemble into supramolecular packings on Au(111) was studied using Scanning Tunnelling Microscopy and modeled through theoretical semi-empirical calculations, suggesting that the dipole moment plays a subtle role in both molecular assemblies.
References
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TL;DR: In this article, the photo-induced electron transfer leads to a number of potentially interesting applications, which include sensitization of the photoconductivity and photovoltaic phenomena, and their potential in terrestrial solar energy conversion discussed.
Journal ArticleDOI
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Hsiang-Yu Chen,Hsiang-Yu Chen,Jianhui Hou,Shaoqing Zhang,Yongye Liang,Guanwen Yang,Yang Yang,Luping Yu,Yue Wu,Gang Li +9 more
TL;DR: In this article, the open-circuit voltage of polymer solar cells constructed based on the structure of a low-bandgap polymer, PBDTTT, can be tuned, step by step, using different functional groups.
Journal ArticleDOI
Small molecular weight organic thin-film photodetectors and solar cells
TL;DR: In this paper, the double heterojunction was proposed to confine excitons within the active layers, allowing substantially higher internal efficiencies to be achieved, and a full optical and electrical analysis of the double-heterostructure architecture leads to optimal cell design as a function of the optical properties and exciton diffusion lengths of the photoactive materials.
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Organic photovoltaics: technology and market
TL;DR: In this paper, the economical and technical production aspects for organic photovoltaics are discussed and the key property which makes organic PV so attractive is the potential of reel to reel processing on low cost substrates with standard coating and printing processes.
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Small Molecule Solution-Processed Bulk Heterojunction Solar Cells†
TL;DR: The major classes of molecular donors have been reported in the literature in the past several years and highlights some of key considerations in molecular heterojunction design compared to polymer-based bulk heterojunctions as mentioned in this paper.