| 1. |
- Gabrielsson, Erik, et al.
(författare)
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Dipicolinic acid : a strong anchoring group with tunable redox and spectral behavior for stable dye-sensitized solar cells
- 2015
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 51:18, s. 3858-3861
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Tidskriftsartikel (refereegranskat)abstract
- Dipicolinic acidwas investigated as a new anchoring group for DSSCs. A pilot dye (PD2) bearing this new anchoring group was found to adsorb significantly stronger to TiO2 than its cyanoacrylic acid analogue. The electrolyte composition was found to have a strong effect on the photoelectrochemical properties of the adsorbed dye in the device, allowing the dye LUMO energy to be tuned by 0.5 eV. Using a pyridine-free electrolyte, panchromatic absorption of the dye on TiO2 extending to 900 nm has been achieved. Solar cells using PD2 and a Co(bpy)(3) based electrolyte showed unique stability under simulated sunlight and elevated temperatures.
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| 2. |
- Gao, Jiajia, et al.
(författare)
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Long-term stability for cobalt-based dye-sensitized solar cells obtained by electrolyte optimization
- 2014
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 50:47, s. 6249-6251
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Tidskriftsartikel (refereegranskat)abstract
- A significant improvement in the long-term stability for cobalt-based dye-sensitized solar cells (DSCs) under light-soaking conditions has been achieved by optimization of the composition of tris(2,2'-bipyridine) Co(II)/Co(III) electrolytes. The effects of component exchanges and changes were also studied during the optimization process.
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| 3. |
- Kloo, Lars
(författare)
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On the early development of organic dyes for dye-sensitized solar cells
- 2013
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 49:59, s. 6580-6583
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Tidskriftsartikel (refereegranskat)abstract
- This viewpoint describes the background of the development of organic dyes for dye-sensitized solar cells, the impact of the 2006 ChemComm paper by Sun, Hagfeldt and co-workers regarding the D5 D-pi-A-family of dyes, some recent developments and possible future challenges to meet.
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| 4. |
- Liu, Peng, et al.
(författare)
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Solution processable, cross-linked sulfur polymers as solid electrolytes in dye-sensitized solar cells
- 2015
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 51:78, s. 14660-14662
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Tidskriftsartikel (refereegranskat)abstract
- Inverse-vulcanized polymeric sulfur has been prepared and utilized for solid-state dye sensitized solar cells. A power conversion efficiency of 1.5% was recorded with a short-circuit current of 4.1 mA cm-2 and an open-circuit voltage of 0.75 V under standard AM 1.5G illumination (1000 W m-2). The results in the present study qualify the new polymeric sulfur material as a future candidate as low-cost, hole-transport material for solid-state dye-sensitized solar cells.
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| 5. |
- Stokes, Francesca A., et al.
(författare)
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The redox effect of the [1,2-(NH)(2)C6H4](2-) ligand in the formation of transition metal compounds
- 2012
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 48:92, s. 11298-11300
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Tidskriftsartikel (refereegranskat)abstract
- Reactions of the [1,2-(NH)(2)C6H4](2-) dianion (LH22-) with Cp2MII (M = V, Mn) lead to complete or partial oxidation of the metals (M), giving the V-III compound [(eta(5)-Cp)(LH2)(2)-VV( LH2)](-)[Li(THF)(4)](+) (1) and (Mn4Mn2III)-Mn-II oxo cage [Mn-6(LH2)(6)(mu(6)-O)(THF)(4)] (2).
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| 6. |
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| 7. |
- Tian, Lei, et al.
(författare)
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Solid state p-type dye sensitized NiO-dye-TiO2 core-shell solar cells
- 2018
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 54:30, s. 3739-3742
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Tidskriftsartikel (refereegranskat)abstract
- Solid state p-type dye sensitized NiO-dye-TiO2 core-shell solar cells with an organic dye PB6 were successfully fabricated for the first time. With Al2O3 as an inner barrier layer, the recombination process between injected holes in NiO and injected electrons in TiO2 was significantly suppressed and the charge transport time was also improved.
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| 8. |
- Tot, Aleksandar, et al.
(författare)
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Water-in-salt electrolytes - molecular insights to the high solubility of lithium-ion salts
- 2022
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 58:68, s. 9528-9531
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Tidskriftsartikel (refereegranskat)abstract
- The recently established water-in-salt electrolyte (WISE) concept indicates the possible application of aqueous electrolytes in lithium-ion batteries (LiBs). The application of this type of highly concentrated electrolyte relies on a proper understanding of their thermodynamically stable solutions. Therefore, fundamental insights regarding the Li[TFSI] solubility in water are important for the rational design of reproducible and stable WISE.
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| 9. |
- Wang, Linqin, et al.
(författare)
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Design and synthesis of dopant-free organic hole-transport materials for perovskite solar cells
- 2018
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Ingår i: Chemical Communications. - : ROYAL SOC CHEMISTRY. - 1359-7345 .- 1364-548X. ; 54:69, s. 9571-9574
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Tidskriftsartikel (refereegranskat)abstract
- Two novel dopant-free hole-transport materials (HTMs) with spiro[dibenzo[c,h]xanthene-7,9-fluorene] (SDBXF) skeletons were prepared via facile synthesis routes. A power conversion efficiency of 15.9% in perovskite solar cells is attained by using one HTM without dopants, which is much higher than undoped Spiro-OMeTAD-based devices (10.8%). The crystal structures of both new HTMs were systematically investigated to reveal the reasons behind such differences in performance and to indicate the design principles of more advanced HTMs.
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| 10. |
- Zhang, Wei, 1989-, et al.
(författare)
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Single crystal structure and opto-electronic properties of oxidized Spiro-OMeTAD
- 2020
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Ingår i: Chemical Communications. - : Royal Society of Chemistry. - 1359-7345 .- 1364-548X. ; 56:10, s. 1589-1592
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Tidskriftsartikel (refereegranskat)abstract
- Single crystals of Spiro(TFSI)2 were grown, the optical and electronic properties were characterized and compared with neutral Spiro-OMeTAD. Density-functional theory was used to get insights into binding and band structure properties. The flat valence bands indicate a rather limited orbital overlap in Spiro(TFSI)2.
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