Journal ArticleDOI
Perylene imides for organic photovoltaics: yesterday, today, and tomorrow.
Chen Li,Henrike Wonneberger +1 more
TLDR
The relationship between the photovoltaic performance and the structure of perylene imides is discussed and perylene imides-based copolymers or oligomers play an important role in single junction devices.Abstract:
Perylene imides have been an object of research for 100 years and their derivatives are key n-type semiconductors in the field of organic electronics. While perylene diimides have been applied in many electronic and photonic devices, their use can be traced back to the first efficient organic solar cell. By functionalizing different positions of the in total 12 positions (four peri, four bay, and four ortho-positions) on the perylene core, perylene imides with significantly different optical, electronic and morphological properties may be prepared. Perylene imides and their derivatives have been used in several types of organic photovoltaics, including flat-, and bulk-heterojunction devices as well as dye-sensitized solar cells. Additionally perylene imides-based copolymers or oligomers play an important role in single junction devices. In this review, the relationship between the photovoltaic performance and the structure of perylene imides is discussed.read more
Citations
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Journal ArticleDOI
Non-fullerene acceptors for organic solar cells
TL;DR: Non-fullerene acceptors (NFAs) are currently a major focus of research in the development of bulk-heterojunction organic solar cells (OSCs) as mentioned in this paper.
Journal ArticleDOI
Non-Fullerene Electron Acceptors for Use in Organic Solar Cells
Christian B. Nielsen,Sarah Holliday,Hung-Yang Chen,Samuel J. Cryer,Iain McCulloch,Iain McCulloch +5 more
TL;DR: The motivation to replace fullerene acceptors stems from their synthetic inflexibility, leading to constraints in manipulating frontier energy levels, as well as poor absorption in the solar spectrum range, and an inherent tendency to undergo postfabrication crystallization, resulting in device instability.
Journal ArticleDOI
Organic sensitizers from D-π-A to D-A-π-A: effect of the internal electron-withdrawing units on molecular absorption, energy levels and photovoltaic performances.
Yongzhen Wu,Weihong Zhu +1 more
TL;DR: This review is projected to summarize the category of pure organic sensitizers containing additional electron-withdrawing units between electron donors and acceptors on the basis of the D-A-π-A feature by comparing the structure-property relationship of typical photovoltaic dyes.
Journal ArticleDOI
Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds: Synthetic Routes, Properties, and Applications
TL;DR: The historical development and current state of the art in this rapidly expanding field of research is summarized, which has become one of the key exploration areas of modern heterocyclic chemistry.
Journal ArticleDOI
Non-fullerene acceptors for organic photovoltaics: an emerging horizon
Yuze Lin,Xiaowei Zhan +1 more
TL;DR: Non-fullerene acceptors are undergoing rapid development and are emerging as a hot area of focus in the field of organic semiconductors as discussed by the authors, which will not only retain the favorable electron-accepting and transporting properties of fullerenes but also overcome their insufficiencies.
References
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Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
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Polymer photovoltaic cells : enhanced efficiencies via a network of internal donor-acceptor heterojunctions
TL;DR: In this paper, the carrier collection efficiency and energy conversion efficiency of polymer photovoltaic cells were improved by blending of the semiconducting polymer with C60 or its functionalized derivatives.
Journal ArticleDOI
Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) offer the possibilities to design solar cells with a large flexibility in shape, color, and transparency as mentioned in this paper, and many DSC research groups have been established around the world.
Journal ArticleDOI
Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies
Udo Bach,D. Lupo,Pascal Comte,Jacques-E. Moser,F. Weissörtel,Josef Salbeck,H. Spreitzer,Michael Grätzel +7 more
TL;DR: A dye-sensitized heterojunction of TiO2 with the amorphous organic hole-transport material 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9′-spirobifluorene (OMeTAD) was described in this article.
Journal ArticleDOI
Combined Experimental and DFT-TDDFT Computational Study of Photoelectrochemical Cell Ruthenium Sensitizers
Mohammad Khaja Nazeeruddin,Filippo De Angelis,Simona Fantacci,Annabella Selloni,Guido Viscardi,Paul Liska,Seigo Ito,Bessho Takeru,Michael Grätzel +8 more
TL;DR: The computed alignments of the molecular orbitals of the different complexes with the band edges of a model TiO(2) nanoparticle provide additional insights into the electronic factors governing the efficiency of dye-sensitized solar cell devices.