Importance of Compact Blocking Layers to the Performance of Dye-Sensitized Solar Cells under Ambient Light Conditions

2018 ◽  
Vol 10 (45) ◽  
pp. 38900-38905 ◽  
Author(s):  
I-Ping Liu ◽  
Wei-Hsun Lin ◽  
Chih-Mei Tseng-Shan ◽  
Yuh-Lang Lee
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Ambient Light ◽  
Light Conditions ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Quasi-Solid-State Dye-Sensitized Solar Cells for Efficient and Stable Power Generation under Room Light Conditions

2019 ◽  
Vol 7 (7) ◽  
pp. 7403-7411 ◽  
Author(s):  
Shanmuganathan Venkatesan ◽  
I-Ping Liu ◽  
Chiao-Wei Li ◽  
Chih-Mei Tseng-Shan ◽  
Yuh-Lang Lee
Keyword(s):  
Power Generation ◽  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Light Conditions ◽  
Dye Sensitized ◽  
Room Light ◽  
Sensitized Solar Cells

High-Efficiency Bifacial Dye-Sensitized Solar Cells for Application under Indoor Light Conditions

2019 ◽  
Vol 11 (45) ◽  
pp. 42780-42789 ◽  
Author(s):  
Shanmuganathan Venkatesan ◽  
Wei-Hsun Lin ◽  
Hsisheng Teng ◽  
Yuh-Lang Lee
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Light Conditions ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Bifacial Dye-Sensitized Solar Cells with Enhanced Light Scattering and Improved Power Conversion Efficiency under Full Sun and Indoor Light Conditions

2020 ◽  
Vol 3 (12) ◽  
pp. 12584-12595
Author(s):  
Swetha Sasidharan ◽  
Sourava Chandra Pradhan ◽  
Anooja Jagadeesh ◽  
Balagopal N. Nair ◽  
Abdul Azeez Peer Mohamed ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Scattering ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Light Conditions ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Effect of Caffeine Copigmentation of Anthocyanin Dyes on DSSC Efficiency

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2692 ◽  
Author(s):  
Junger ◽  
Udomrungkhajornchai ◽  
Grimmelsmann ◽  
Blachowicz ◽  
Ehrmann
Keyword(s):  
Solar Cells ◽  
Ph Value ◽  
Ph Dependence ◽  
Dye Sensitized Solar Cells ◽  
Natural Dyes ◽  
Ambient Light ◽  
Absorbance Spectrum ◽  
Solar Simulator ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Caffeine is known to influence the absorbance spectrum of anthocyanin dyes. Such dyes are often used as sensitizers in dye-sensitized solar cells (DSSCs). Natural dyes, like anthocyanins, yield only small DSSC efficiencies, but are of high interest since they are usually non-toxic and inexpensive. Here we report on the influence of copigmentation of anthocyanins, taken from commercially available tea, with caffeine. In this way, the efficiencies were increased for measurements with a solar simulator as well as with ambient light. In addition, the well-known pH dependence of the efficiency of DSSCs dyed with anthocyanins was shifted—while a pH value of 1–2 was ideal for pure anthocyanins used as dyes, a higher pH value of 2–3 was sufficient to reach the maximum efficiencies for caffeine-copigmented dyes. This means that instead of reducing the pH value by adding an acid, adding caffeine can also be used to increase the efficiency of DSSCs prepared with anthocyanins. Finally, a comparison of several literature sources dealing with anthocyanin-based DSSCs allows for evaluation of our results with respect to the work of other groups.

scholarly journals A molecular photosensitizer achieves a Voc of 1.24 V enabling highly efficient and stable dye-sensitized solar cells with copper(II/I)-based electrolyte

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dan Zhang ◽  
Marko Stojanovic ◽  
Yameng Ren ◽  
Yiming Cao ◽  
Felix T. Eickemeyer ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Spectral Response ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Ambient Light ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Sensitized Solar Cells ◽  
Open Circuit Photovoltage

AbstractTo develop photosensitizers with high open-circuit photovoltage (Voc) is a crucial strategy to enhance the power conversion efficiency (PCE) of co-sensitized solar cells. Here, we show a judiciously tailored organic photosensitizer, coded MS5, featuring the bulky donor N-(2’,4’-bis(dodecyloxy)-[1,1’-biphenyl]-4-yl)-2’,4’-bis(dodecyloxy)-N-phenyl-[1,1’-biphenyl]-4-amine and the electron acceptor 4-(benzo[c][1,2,5]thiadiazol-4-yl)benzoic acid. Employing MS5 with a copper (II/I) electrolyte enables a dye-sensitized solar cell (DSC) to achieve a strikingly high Voc of 1.24 V, with the Voc deficit as low as 130 mV and an ideality factor of merely 1.08. The co-sensitization of MS5 with the wider spectral-response dye XY1b produces a highly efficient and stable DSC with the PCE of 13.5% under standard AM1.5 G, 100 mW cm−2 solar radiation. Remarkably, the co-sensitized solar cell (active area of 2.8 cm2) presents a record PCE of 34.5% under ambient light, rendering it very attractive as an ambient light harvesting energy source for low power electronics.

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