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Documenti fondamentali

923192

Sigma-Aldrich

Spiro-TTB

greener alternative

≥99% (HPLC)

Sinonimo/i:

2,2′,7,7′- Tetrakis(N,N′-di-p-methylphenylamino)-9,9′-spirobifluorene, 2,2′,7,7′-Tetra(N, N-di-tolyl)amino-spiro-bifluorene, 2,2′,7,7′-Tetra(N,N-di-p-tolyl)amino-9,9-spirobifluorene, 2,2′,7,7′-Tetra(N,N-ditolylL)amino-9,9-spiro-bifluorene, 2,2′,7,7′-Tetrakis(di-p-tolylamino)-9,9′-spirobi[fluorene], 2,2′,7,7′-Tetrakis(di-p-tolylamino)spiro-9,9′-bifluorene, N2,N2,N2′,N2′,N7,N7,N7′,N7-Octa-p-tolyl-9,9′-spirobi[fluorene]-2,2′,7,7′-tetraamine

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About This Item

Formula empirica (notazione di Hill):
C81H68N4
Numero CAS:
Peso molecolare:
1097.43
Numero MDL:
NACRES:
NA.23

Descrizione

PL:409 nm (in THF)
TGA:> 360 °C (0.5% weight loss)
Tg: 146 °C

Livello qualitativo

Saggio

≥99% (HPLC)

PM

average mol wt 1097.43 g/mol

Caratteristiche più verdi

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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Perdita

0.5% TGA, >360°C

Temp. transizione

Tg 146 °C

Solubilità

THF: soluble

λmax

385 nm in THF

Energia dell’orbitale

HOMO 5.2 eV 
LUMO 1.9 eV 

Categoria alternativa più verde

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Descrizione generale

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to enabling category of greener alternatives, and has been enhanced for energy efficiency. Click here for more information.

Applicazioni

Spiro-TTB is a high-mobility organic semiconductor with strong donor character given its four substituted arylamine moieties that stabilize positively charged cationic states via mesomeric effects.
It has been successfully applied as transparent hole-transparent layer in solar cells, organic field-effect transistors (OFETs), and organic light emitting devices (OLEDs). In photovoltaics, spiro-TTB was used as organic hole selective layer between perovskite and the silicon cells, contributing to a 25.2% efficency perovskite/ silicon tandem solar cell. When used in OLEDs, spiro-TTB enabled applications in organic photodetectors (OPDs), imaging and lasing applications.
Spiro-TTB is used as a hole transport material in OLED devices, organic photovoltaics (OPVs), organic field-effect transistors (OFETs) and perovskite solar cells. It exhibits excellent hole injection and transport properties, enabling efficient charge transport from the anode to the emitting layers of the OLED structure. This contributes to improved device performance, stability, and overall efficiency.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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Florent Sahli et al.
Nature materials, 17(9), 820-826 (2018-06-13)
Tandem devices combining perovskite and silicon solar cells are promising candidates to achieve power conversion efficiencies above 30% at reasonable costs. State-of-the-art monolithic two-terminal perovskite/silicon tandem devices have so far featured silicon bottom cells that are polished on their front

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