The impact of an indeno[1,2-b]thiophene spacer on dye-sensitized solar cell performances of cyclic thiourea functionalized organic sensitizers

Choi, Hyeju; Shin, Minkyung; Song, Kihyung; Kang, Moon‐Sung; Kang, Youngjin; Ko, Jaejung

doi:10.1039/c4ta02473g

Cited by 25 publications

(13 citation statements)

References 41 publications

(15 reference statements)

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“…Importantly, this strategy has shown widespread applicability regardless of the dye π‐bridge structure with thiophene and thiophene derivative‐based dyes ( W10 , JK‐314 , MA45 , LP227 , AH7 , TK6 , XW70 , QX02 , SGT‐103 , AP16 ), quinoxaline‐derived dyes ( YA422 , S3 , DT‐1 , FNE53 ), benzothiadiazole‐based dyes ( RR9 , C275 , C281 , ZL003 ), diketopyrrolopyrrole‐based dyes ( DPP17 ), and porphyrin‐based dyes ( XW51 , SGT‐021 , 2,4‐ZnP‐CN‐COOH ), which are all used to generate relatively low‐recombination‐rate systems (Figure ). The most common approach used is the incorporation of aryl alkyl ether groups where the aryl is benzene (16 examples in Figure ).…”

Section: Next‐generation Low‐recombination Donorsmentioning

confidence: 99%

The Hagfeldt Donor and Use of Next‐Generation Bulky Donor Designs in Dye‐Sensitized Solar Cells

2020

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“The Hagfeldt donor” is a bulky triarylamine building block with four alkyl chains in a 3‐dimensional arrangement that is used with organic dyes in dye‐sensitized solar cells (DSCs) in over 140 publications. Many of the highest performing DSC devices in literature make use of this group due to exceptional TiO2 surface protection properties, which slows recombination of electrons in TiO2 with the electrolyte. Importantly, record‐setting cobalt and copper redox shuttle‐based DSCs require exceptional surface protection to slow a facile recombination of electrons to these positively charged redox shuttles. Several syntheses have emerged for the Hagfeldt donor due to the need for iterative aryl–halide cross‐ coupling reactions complicating a straightforward route. Six synthetic strategies found in literature are described along with the challenges of each route. A recent method that has been put forward in the literature as a scalable, regioisomerically pure route is highlighted.

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Section: Next‐generation Low‐recombination Donorsmentioning

confidence: 99%

The Hagfeldt Donor and Use of Next‐Generation Bulky Donor Designs in Dye‐Sensitized Solar Cells

2020

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“…During the past two decades, PCEs in such cells have been substantially increased, mainly due to improvements of exploring new photosensitizers . Photosensitizers such as ruthenium(II) complexes, , porphyrin-based dyes, and metal-free organic dyes − have been investigated systematically. For a long time, the PCE of DSSCs sensitized with metal-free organic dyes were behind those of ruthenium(II) complexes and porphyrin-based dyes, partly due to the lack of absorption at long wavelength.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Role of Electron Donor in Truxene Dye Sensitized Solar Cells with Cobalt Electrolytes

Dai

Dong

Liang

et al. 2016

ACS Sustainable Chem. Eng.

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To understand the role of electron donor in organic dye sensitized solar cells employing cobalt electrolytes, two new organic dyes (M41 and M42) and a reference dye (M29) have been synthesized. We investigated the effects of the electron-withdrawing/electron-rich group in the electron donor on the photophysical and electrochemical properties of these dyes. In addition, the electron transfer kinetics of devices were compared by using two cobalt electrolytes (Co(II/III)phen and Co(II/III)-Clphen) with different oxidation potentials. Regardless of the electrolyte selection, M42 shows a higher efficiency in comparison with those of M41 and M29. M42 in combination with the Co(II/III)-phen redox couples yielded an efficiency of 9.69% under the standard light illumination (AM 1.5G, 100 mW cm −2 ). We also evaluate the influence of light harvesting capacity, regeneration force of oxidized dyes, and charge recombination on the performance of studied DSSCs. This study suggests that, given the good capacity of retarding charge recombination, light harvesting capacity is the critical factor behind the photocurrent as well as the efficiency for organic dyes, but not the regeneration force of oxidized dyes.

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“…Metal-free organic dyes as sensitizers in DSSCs have drawn widespread academic and commercial attention because of their high molar extinction coefficient and easily adjustable spectral response. Recently, a number of novel metal-free organic sensitizers, such as triphenylamine, 10 indoline, 11 perylene, 12 carbazole, 13 tetrahydroquinoline, 14 phenothiazine 15 and uorene dyes, 16 have been investigated and applied in DSSCs successfully.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, three novel triphenylamine sensitizers TTR1-3 have been designed and synthesized. As donors, triphenylamine and its derivatives 10,[17][18][19][20][21] have shown promise in the development of DSSCs, owing to: (1) three benzene rings of triphenylamine have high activity, so the different functional groups are easy to be introduced. ( 2) Three non-coplanar phenyl having propeller structure which results in large steric hindrance can effectively prevent aggregation between adjacent molecules on TiO 2 surface.…”

Section: Introductionmentioning

confidence: 99%

Improvement of dye-sensitized solar cells performance through introducing different heterocyclic groups to triarylamine dyes

Jia

et al. 2015

RSC Adv.

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The impact of an indeno[1,2-b]thiophene spacer on dye-sensitized solar cell performances of cyclic thiourea functionalized organic sensitizers

Cited by 25 publications

References 41 publications

The Hagfeldt Donor and Use of Next‐Generation Bulky Donor Designs in Dye‐Sensitized Solar Cells

The Hagfeldt Donor and Use of Next‐Generation Bulky Donor Designs in Dye‐Sensitized Solar Cells

Understanding the Role of Electron Donor in Truxene Dye Sensitized Solar Cells with Cobalt Electrolytes

Improvement of dye-sensitized solar cells performance through introducing different heterocyclic groups to triarylamine dyes

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