Novel organic dyes based on thioindigo for dye-sensitized solar cells

Hosseinnezhad, Mozhgan; Moradian, Siamak; Gharanjig, Kamaladin

doi:10.1016/j.dyepig.2015.07.016

Cited by 38 publications

(21 citation statements)

References 25 publications

(33 reference statements)

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“…1 mmol dm −3 ) was prepared. The electrochemical measurements were performed at a scan rate of 100 mV s −1 (Lu et al , 2017; Hosseinnezhad et al , 2015).…”

Section: Methodsmentioning

confidence: 99%

Investigation of photovoltaic properties of dye-sensitized solar cells based on azo dyes contain various anchoring groups

Hosseinnezhad

Shaki

2019

PRT

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Purpose The purpose of this paper is to study the substituent effect in dye-sensitized solar cells’ (DSSCs) performance. For this end, three new metal organic dyes with DPA structure were synthesized. For investigation of the substituent effect, two different anchoring groups, namely, 1,3-dioxo-1Hbenz[de]isoquinolin-2(3H)-yl)benzenesulfonamides and 1,8-naphthalimide, were used. Design/methodology/approach Three organic dyes based on azo were selected, which contain various electron donor groups. Absorption properties of purified dyes were studied in solution and on photoelectrode (TiO2 and ZnO) substrate. DSSCs were prepared to determine the photovoltaic performance of each photosensitizer. Findings The results showed that all organic dyes form J-aggregation on the photoanode substrate. Cyclic voltammetry results for all organic dyes ensured an energetically permissible and thermodynamically favorable charge transfer throughout the continuous cycle of photo-electric conversion. The results illustrate conversion efficiencies of cells based on solution Dyes 1, 2 and 3 and TiO2 as 3.44, 4.71 and 4.82 per cent, respectively. The conversion efficiencies of cells based on solution Dye 1, 2 and 3 and ZnO are 3.21, 4.09 and 4.14 per cent, respectively. Practical implications In this study, the development of effect of assembling materials, offering improved photovoltaic properties. Social implications Organic dye attracts more and more attention because of its low-cost, facile route synthesis and less-hazardous properties. Originality/value To the best of the authors’ knowledge, the effect of anchoring agent and nanostructure on DSSCs performance was investigated for the first time.

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“…1 mmol dm −3 ) was prepared. The electrochemical measurements were performed at a scan rate of 100 mV s −1 (Lu et al , 2017; Hosseinnezhad et al , 2015).…”

Section: Methodsmentioning

confidence: 99%

Investigation of photovoltaic properties of dye-sensitized solar cells based on azo dyes contain various anchoring groups

Hosseinnezhad

Shaki

2019

PRT

Self Cite

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“…Other molecules based on the same motif showed promising activity against different tumour strains under in vitro conditions [3,5]. Indigo-and thioindigo-compounds [6] are widely employed as dyes in the textile industry [7] and as photosensitisers [8,9] and are studied regarding their photophysical and photochromic properties [10][11][12][13][14]. In contrast, the optical properties of iso-I were the subject of a more recent research effort [15][16][17][18][19] as it was realised that iso-I is highly suitable for organic photovoltaics (OPVs) [17] and optoelectronics [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Predicting the substituent effects in the optical and electrochemical properties of N,N′-substituted isoindigos

Kiss

Corbet

Simeth

et al. 2021

Photochem Photobiol Sci

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Isoindigo, the structural isomer of the well-known dye indigo, has seen a major revival recently because of the increasing interest of its use as a potential drug core structure and for the development of organic photovoltaic materials. Highly beneficial for diverse applications are its facile synthesis, straightforward functionalisation and the broad absorption band in the visible range. Moreover, its intrinsic electron deficiency renders isoindigo a promising acceptor structure in bulk heterojunction architectures. Here we present new insights into the substituent effects of N-functionalised isoindigos, developing a reliable and fast in silico screening approach of a library of compounds. Using experimental UV–Vis and electrochemical data increased the accuracy of the TD-DFT method employed. This procedure allowed us to accurately predict the optical and electrochemical properties of N-functionalised isoindigos and the elucidation of the relationship between substituent effects and electronic properties. Graphic abstract

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“…Indigo, isoindigo and their derivatives have demonstrated a great success as an electron-accepting scaffold in the development of new materials for various organic electronic applications, in particular focusing on organic eld effect transistors (OFETs) and organic photovoltaics (OPVs). [16][17][18][19][20][21][22] Other highlighted indigo derivatives have been widely described in this area, such as thioindigo, 23 (where the two NH groups are substituted by S atoms), or isoindigo 18,24 (linked by methylene bridges at the 3-position), including thienoisoindigo, 25 uorinated isoindigo 26 and diazaisoindigo (with two nitrogen atoms at different positions). [27][28][29][30] In this last derivative, the diazaisoindigo, the replacement of two carbons in the benzene rings by two nitrogen atoms in positions 7 and 7 0 clearly imposes a higher planarity compared to the isoindigo counterpart.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and photophysical studies of an indigo derivative:N-octyl-7,7′-diazaindigo

et al. 2020

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Novel organic dyes based on thioindigo for dye-sensitized solar cells

Cited by 38 publications

References 25 publications

Investigation of photovoltaic properties of dye-sensitized solar cells based on azo dyes contain various anchoring groups

Investigation of photovoltaic properties of dye-sensitized solar cells based on azo dyes contain various anchoring groups

Predicting the substituent effects in the optical and electrochemical properties of N,N′-substituted isoindigos

Synthesis and photophysical studies of an indigo derivative:N-octyl-7,7′-diazaindigo

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