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[ CAS No. 1073-62-7 ] {[proInfo.proName]}

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Chemical Structure| 1073-62-7
Chemical Structure| 1073-62-7
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Product Citations

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Wenzhan Xu ; Bo Chen ; Zhao Zhang , et al. DOI:

Abstract: Flexible perovskite solar cells have attracted substantial attention owing to their promises for soft and high power–weight compatibility. However, the inferior quality of the buried perovskite–substrate interface due to low interfacial adhesion and large deformation of flexible substrates have greatly limited the performance of flexible perovskite solar cells. Here we add the organic molecule into the hole extraction material poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) to enhance adhesion at the perovskite–substrate interface using the interaction of with perovskites, poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) and indium tin oxide through its multiple functional groups. In addition, reduces the density of voids at the bottom of the perovskite film owing to its capability to tune the crystallization of perovskites. We demonstrate inverted small-area flexible perovskite solar cells with a power conversion efficiency of 23.4%. Flexible perovskite minimodules with an area of 9 cm2 achieve a certified aperture efficiency of ~19.0%. The optimized unencapsulated flexible minimodule retains 84% of its initial efficiency after 5,000 bending cycles and 90% of the initial power conversion efficiency after light soaking for >750 h.

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Md Aslam Uddin ; Prem Jyoti Singh Rana ; Zhenyi Ni , et al. DOI: PubMed ID:

Abstract: Interstitial are the most critical type of defects in perovskite solar cells that limits efficiency and stability. They can be generated during solution, film, and device processing, further accelerating degradation. Herein, we find that introducing a small amount of a salt- trifluoromethane sulfonate (Zn(OOSCF3)2) in the perovskite solution can control the iodide defects in resultant perovskites ink and films. CF3SOO? vigorously suppresses molecular iodine formation in the perovskites by reducing it to iodide. At the time, cations can precipitate excess iodide by forming a Zn-Amine complex so that the iodide interstitials in the resultant perovskite films can be suppressed. The perovskite films using these additives show improved photoluminescence quantum efficiency and reduce deep trap density, despite cations reducing the perovskite grain size and iodide interstitials. The additives facilitate the formation of more uniform perovskite films on large-area substrates (78-108 cm2) in the blade-coating process. Fabricated minimodules show power conversion efficiencies of 19.60% and 19.21% with aperture areas of 84 and 108 cm2, respectively, as certified by National Renewable Energy Laboratory (NREL), the highest efficiency certified for minimodules of these sizes.

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Wang, Jiantao ; Uddin, Aslam Md ; Chen, Bo , et al. DOI:

Abstract: High-performance tin-lead perovskite solar cells (PSCs) are needed for all-perovskite-tandem solar cells. However, iodide related fast photodegradation severely limits the operational stability of Sn-Pb perovskites despite the demonstrated high efficiency and thermal stability. Herein, this work employs an alkylammonium pseudo-halogen additive to enhance the power conversion efficiency (PCE) and photostability of methylammonium (MA)-free, Sn-Pb PSCs. D. functional theory (DFT) calculations reveal that the pseudo-halogen tetrafluoroborate (BF4-) has strong binding capacity with metal ions (Sn2+/Pb2+) in the Sn-Pb perovskite lattice, which lowers iodine vacancy formation. Upon combining BF4- with an octylammonium (OA+) cation, the PCE of the device with a built-in light-scattering layer is boosted to 23.7%, which represents a new record for Sn-Pb PSCs. The improved efficiency benefits from the suppressed defect d. Under continuous 1 sun illumination, the OABF4 embodied PSCs show slower generation of interstitial iodides and iodine, which greatly improves the device photostability under open-circuit condition. Moreover, the device based on OABF4 retains 88% of the initial PCE for 1000 h under the maximum-power-point tracking (MPPT) without cooling.

Keywords: efficiency ; photostability ; pseudo-halogens ; Sn-Pb perovskites ; solar cells

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Dai, Xuezeng ; Chen, Shangshang ; Jiao, Haoyang , et al. DOI:

Abstract: All-perovskite tandem solar modules are promising to reduce the cost of photovoltaic systems with their high efficiency and solution fabrication, but their sensitivity to air still imposes a great challenge. Here a hot gas-assisted blading method is developed to accelerate the perovskite solidification, forming compact and thick narrow bandgap (NBG) perovskite films. Adding a reduction agent into NBG films followed by a short period of air exposure and a post-fabrication storage surprisingly increases carrier recombination lifetime and enables laser scribing in ambient conditions without obvious loss of device performance. This combination suppresses tin and iodide oxidation and forms a thin SnO2 layer on the NBG film surface. Monolithic all-perovskite tandem solar modules showed a champion efficiency of 21.6% with a 14.3?cm2 aperture area, corresponding to an active area efficiency of 23.0%. The very small cell-to-module derate of 6.5% demonstrates the advantage of a tandem monolithic structure for solar modules.

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Product Details of [ 1073-62-7 ]

CAS No. :1073-62-7 MDL No. :MFCD01722685
Formula : C7H11ClN2 Boiling Point : -
Linear Structure Formula :NH2NHCH2C6H5·HCl InChI Key :PRBLRLQZOKOQCQ-UHFFFAOYSA-N
M.W : 158.63 Pubchem ID :14084
Synonyms :

Calculated chemistry of [ 1073-62-7 ]      Expand+

Physicochemical Properties

Num. heavy atoms : 10
Num. arom. heavy atoms : 6
Fraction Csp3 : 0.14
Num. rotatable bonds : 2
Num. H-bond acceptors : 2.0
Num. H-bond donors : 2.0
Molar Refractivity : 43.88
TPSA : 38.05 ?2

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : No
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -6.15 cm/s

Lipophilicity

Log Po/w (iLOGP) : 0.0
Log Po/w (XLOGP3) : 1.57
Log Po/w (WLOGP) : 1.3
Log Po/w (MLOGP) : 1.76
Log Po/w (SILICOS-IT) : 0.67
Consensus Log Po/w : 1.06

Druglikeness

Lipinski : 0.0
Ghose : None
Veber : 0.0
Egan : 0.0
Muegge : 1.0
Bioavailability Score : 0.55

Water Solubility

Log S (ESOL) : -2.12
Solubility : 1.19 mg/ml ; 0.00751 mol/l
Class : Soluble
Log S (Ali) : -1.98
Solubility : 1.66 mg/ml ; 0.0105 mol/l
Class : Very soluble
Log S (SILICOS-IT) : -2.45
Solubility : 0.565 mg/ml ; 0.00356 mol/l
Class : Soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 1.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 1.0

Safety of [ 1073-62-7 ]

Signal Word:Danger Class:6.1
Precautionary Statements:P501-P270-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P310+P330-P405 UN#:2811
Hazard Statements:H301-H315-H319 Packing Group:Ⅲ
GHS Pictogram:

Application In Synthesis of [ 1073-62-7 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1073-62-7 ]

[ 1073-62-7 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 1073-62-7 ]
  • [ 17823-69-7 ]
  • 5-amino-1-benzyl-4-carboxamido-3-(methylthio)pyrazole [ No CAS ]
  • 2
  • [ 5926-51-2 ]
  • [ 1073-62-7 ]
  • [ 957133-21-0 ]
  • [ 957133-23-2 ]
  • 3
  • [ 1073-62-7 ]
  • [ 1218-69-5 ]
  • [ 201530-47-4 ]
YieldReaction ConditionsOperation in experiment
With triethylamine; In ethanol; EXAMPLE 10 3,5-Bis(2-hydroxyphenyl)-1-benzyl-1H-[1,2,4]triazole 5.0 g of <strong>[1218-69-5]2-(2-hydroxyphenyl)benz[e][1,3]oxazin-4-one</strong> are boiled under reflux for 4 h with 3.4 g of benzylhydrazine hydrochloride and 5.9 ml of triethylamine in 50 ml of ethanol. The mixture is cooled, poured onto water and extracted with ethyl acetate. The combined organic phases are dried over sodium sulfate and concentrated on a rotary evaporator. The residue is crystallized from isopropanol. After drying, 3,5-bis(2-hydroxyphenyl)-1-benzyl-1H-[1,2,4]triazole remains as colorless crystals of m.p. 166-168 C.
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