Synthesis of tetracyanoethylene‐substituted ferrocene and its device properties

Abstract

Small organic molecules are promising candidates for cheaper, flexible and good‐performance sources for organic solar cells (OSCs) due to their easy fabrication, low cost and slightly cheaper processing. However, the lower power conversion efficiency of OSCs is the main problem for their applications. Ferrocene structures could be the best candidates for the active layers of OSCs due to their unique properties such as thermal and chemical stability. The electrochemical, electro‐optical and solar cell performances of 2,5‐dicyano‐3‐ferrocenyl‐4‐ferrocenylethynylhexa‐2,4‐dienedinitrile (DiCN‐Fc) structures were investigated. First, the electrochemical and electro‐optical properties were examined for finding the highest occupied and lowest unoccupied molecular orbital values and bandgap of DiCN‐Fc. The best photovoltaic performance was obtained with 7 wt% of DiCN‐Fc loading, with a power conversion efficiency of about 4.27%. In the light of our investigations, ferrocenyl‐substituted small organic molecules could contribute to the development of organic photovoltaic devices.

Synthesis of Ferrocene Based Naphthoquinones and its Application as Novel Non‐enzymatic Hydrogen Peroxide

“…Ferrocene, a double‐cone sandwich structure, has been used for the synthesis of new organic and inorganic compounds since 1951 . Due to the fact that ferrocene is neutral, highly stable and non‐toxic compound, the researchers have tried to investigate novel ferrocenyl substituted molecules for biological and material applications . Remarkably, ferrocene unit increases biological activities than the current activities of parent compounds .…”

Calamitic-Type Dipolar and Quadrupolar Chromophores with a Twisted Peripheral Handle: Structure–Property Outlook as Nonfullerene Acceptors for Binary Solar Cells

“…In particular, our emphasis was to incorporate tetracyanobutadiene (TCBD) as a peripheral group to diminish the π-orbital energy in order to fulfill the acceptor criteria. Regardless of the orthogonal geometry between the two C­(CN) 2 moieties in TCBD, − which could impede effective π-delocalization, recent years have witnessed constant attempts to use TCBD-based π-semiconductors in organic solar cells. − Their potential as active layer materials has been demonstrated in OPVs as small molecular donors, ,,− acceptors, − and dopants . The continuous attempts to use these molecular entities in OPVs probably stems from their simple synthesis, well-understood redox chemistry, electron-accepting tendency, optical transition, and charge transfer (CT) characteristics. − The twisted conformation of TCBD also diminishes intermolecular interactions, thereby facilitating the formation of homogeneous films of high optical quality appropriate for molecular device applications .…”

“…20−33 Their potential as active layer materials has been demonstrated in OPVs as small molecular donors, 11,12,20−26 acceptors, 27−31 and dopants. 32 The continuous attempts to use these molecular entities in OPVs probably stems from their simple synthesis, well-understood redox chemistry, electron-accepting tendency, optical transition, and charge transfer (CT) characteristics. 34−38 The twisted conformation of TCBD also diminishes intermolecular interactions, thereby facilitating the formation of homogeneous films of high optical quality appropriate for molecular device applications.…”

Synthesis of Novel Artemisinin Derivatives and Their Electrochemical Properties

“…[3] New technologies are eco-friendly, needing renewable energy sources like sun, wind, water etc., and slightly cheaper than fossil sources. [4] Recently, a variety of batteries, [5] organic solar cells, [6] and fuel cells [7][8][9] have been investigated. Fuel cells may be the best way to formation of electrical energy by using chemical energy in cells.…”