Cost-Effective Anthryl Dyes for Dye-Sensitized Cells under One Sun and Dim Light

Wang, Chin‐Li; Lin, Pao-Tsen; Wang, Yifen; Chang, Chiung-Wen; Lin, Bo-Zhi; Kuo, Hshin-Hui; Hsu, Cheng-Wei; Tu, Shih-Hung; Lin, Che

doi:10.1021/acs.jpcc.5b08101

Cited by 57 publications

(51 citation statements)

References 43 publications

(68 reference statements)

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“…1200 lux incident light were reported. 61 The device exhibits a smooth J SC increment of ca. 0.12 µA cm -2 lux -1 with V OC of 0.47 ~ 0.57 V toward growing light intensity ( Fig.…”

Section: Photovoltaic Performancesmentioning

confidence: 99%

A feasible scalable porphyrin dye for dye-sensitized solar cells under one sun and dim light environments

Liu

Chou

et al. 2016

J. Mater. Chem. A

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We have devised new porphyrin dye Y1A1 for photovoltaic application under both light sources of AM1.5G standard condition and low light intensity at 300 ~ 2400 lux. The dye Y1A1 tailored with two 3,5-di-tert-butyl-4-methoxyphenyl groups at meso-10,20-positions which helps the solubility of the molecule in solvents and avoids involvement of the hazardous chemical n-butyllithium during the synthesis of some typical high efficiency porphyrins such as YD2-o-C8 and LD-series dyes. The dye is also structurally simple so that large-scale synthesis for future industrial application becomes feasible. The Y1A1-based cells were found to exhibit higher performance using I -/I 3 rather than Co 2+/3+ electrolyte in the presence of CDCA co-adsorbent. Addition of Li + together with removal of GuSCN as electrolyte additives benefit the performance in terms of higher capacitance at compensate of surface charge recombination and electron lifetime. The optimized cells based on Y1A1 showed a power conversion efficiency of 9.22% at AM1.5G condition and as high as 19.5%illuminated under 350 lux of LED light. IntroductionSolar cells are well-known technologies in terms of converting energy from sun to a flow of electrons. To provide a controllable and comparable testing condition for solar cells, standard 1 Sun condition (100 mW cm -2 ) is generally equipped in the laboratory for mimicking the outdoor environments which typically shed lights with intensity of >100,000 lux. In contrast, indoor lights surrounding the living places of the community can be considered as low light or dim light due to relatively lower photon flux. These places including homes, schools, offices, factories, hospitals and stores require brightness of light sources typically ranging between 300~500 lux. Higher light level demand for specific area such as laboratories, reading rooms, production halls, first aids and show rooms require the illuminated light of 500~1500 lux. With the thriving concept of indoor energy-harvesting aiming at these reachable light sources, dye-sensitized solar cells (DSCs) are certainly one of the most promising light-to-electricity conversion technologies. 1 DSCs have drawn growing attention since the pioneer work initiated by Grätzel's groups. 2 In the past two decades, molecular engineering of dyes yields several kinds of molecular architectures for efficient solar-to-electricity conversion. 3, 4 These high performance dyes includes the ruthenium polypyridyl complexes, 5, 6 the arylamine-based organic dyes 7-12 and the porphyrin-based dyes. 13-15 Graphical AbstractA new porphyrin dye Y1A1 has been devised for high performance dye-sensitized solar cells under the irradiance of either AM1.5G simulated sunlight or fluorescent/LED based dim light.

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“…1200 lux incident light were reported. 61 The device exhibits a smooth J SC increment of ca. 0.12 µA cm -2 lux -1 with V OC of 0.47 ~ 0.57 V toward growing light intensity ( Fig.…”

Section: Photovoltaic Performancesmentioning

confidence: 99%

A feasible scalable porphyrin dye for dye-sensitized solar cells under one sun and dim light environments

Liu

Chou

et al. 2016

J. Mater. Chem. A

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“…Solar energy can be harvested and converted into electricity for practical applications using various technologies such as silicon‐based solar cells (SSCs), dye‐sensitized solar cells (DSSCs), organic photovoltaic (OPVs), and perovskite solar cells (PSCs). In the past two decades, DSSCs have received considerable attention due to their ease of fabrication, low weight, cost‐effective device modules, and suitability for indoor applications in comparison to SSCs . Current research even follows a new trend of integration systems that utilize a single device to harvest the energy and to store it simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…In the past two decades, DSSCs have received considerable attention due to their ease of fabrication, low weight, cost-effective device modules, and suitability for indoor applications in comparison to SSCs. [1][2][3][4] Currentr esearch even follows an ew trend of integration systemst hat utilizeasingle devicet oh arvest the energy and to store it simultaneously.T hese integrated solar cells combinet he technologies of new-generation solar cells (SSCs, DSSCs, OPVs,a nd PSCs) and energy-storaged evices [lithiumion batteries (LIBs) and supercapacitors (SCs)]. [5,6] One of the most crucial components in the development of DSSCs is the design of high-performance organic sensitizers.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance Organic Dyes with Electron‐Deficient Quinoxalinoid Heterocycles for Dye‐Sensitized Solar Cells under One Sun and Indoor Light

et al. 2019

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A series of Y‐shaped sensitizers incorporating quinoxaline or quinoxalinoid moieties were prepared and applied in dye‐sensitized solar cells (DSSCs). By the introduction of quinoxalinoid functionalities, the absorption extinction coefficients could be enhanced. The molecular structures were modified by introducing an extra acceptor group (A) between a donor (D) and a π‐bridge (D–A–π–A) and also by incorporating electron‐donating substituents at various positions of the quinoxalinoid moiety. Some of the dyes and mixtures thereof were found to exhibit good light‐harvesting efficiencies under both sunlight and indoor light, with efficiencies up to 7.92 % under one sun (AM 1.5G). When operated under indoor light, the efficiency could be boosted to 27.76, 28.74, and 30.45 % under 600, 1000, 2500 lux illumination, respectively. The best performance could be ascribed partly to an improved dye coverage on the TiO2 surface.

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“…Photovoltaic (PV) application is expected to continue its expansion into urban life [1][2][3] . This trend requires that PVs have a high efficiency under low-intensity lighting conditions 4 , as well as omnidirectional light-trapping ability [5][6][7] , to optimize electricity production from limited or fixed area/direction sources [8][9][10] . In this situation, a conventional flat panel of silicon (Si) crystalline solar cells developed for large-scale applications provides low electricity production, owing to the weak intensity of the indirect light.…”

Section: Introductionmentioning

confidence: 99%

Preparation 8.5%-efficient submodule using 5%-efficient DSSCs via three-dimensional angle array and light-trapping layer

et al. 2020

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Expanding the application area of photovoltaics to urban environments demands high efficiency under lowintensity lighting conditions, as well as omnidirectional light trapping. Dye-sensitized solar cells are of particular interest in this regard, owing to their superior electricity production in dim light; however, an improvement in dyesensitized solar cells efficiency is required for successful implementation. We developed a light-trapping layer within the photoanode of dye-sensitized solar cells and configured these cells into an angled three-dimensional (3D) array creating a submodule to improve efficiency. The light-trapping layer increases the travel distance of the light within the photoanode, thus improving electron generation by the photons of the omnidirectional incident light. The 3D angled array suppresses recombination and internal resistance losses, improving the collection efficiency by increasing the relative cell surface area with respect to the light projection area. Using the proposed configuration, we achieved a dye-sensitized solar cells submodule efficiency of 8.5% using 5%-efficient dyesensitized solar cells with a pot-shaped light-trapping layer and a 60°angled 3D array for the submodule. Considering that there is room for further improvement, our proposed photovoltaics configuration is expected to overcome the current limitations of dye-sensitized solar cells, thus providing promising photovoltaics modules for urban environments.

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Cost-Effective Anthryl Dyes for Dye-Sensitized Cells under One Sun and Dim Light

Cited by 57 publications

References 43 publications

A feasible scalable porphyrin dye for dye-sensitized solar cells under one sun and dim light environments

A feasible scalable porphyrin dye for dye-sensitized solar cells under one sun and dim light environments

High‐Performance Organic Dyes with Electron‐Deficient Quinoxalinoid Heterocycles for Dye‐Sensitized Solar Cells under One Sun and Indoor Light

Preparation 8.5%-efficient submodule using 5%-efficient DSSCs via three-dimensional angle array and light-trapping layer

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