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Product Code M2237A1-1g
Price £280 ex. VAT

NDI-N, high quality n‐type semiconductor material

Used to make large-area devices with high efficiencies

NDI-N (CAS number 3436-54-2), namely (N,N-dimethylamino)propyl naphthalene diimide is a cathode interlayer material with a naphthalene diimide (NDI) and two dimethylpropylamine side chains.

Naphthalene diimides, a class of excellent n‐type semiconductor materials with high electron affinities owing to their self‐organization manifested by the π–π stacking, are widely used as building blocks for n-type semiconducting polymers, i.e. PNDI(2OD)2T, (also known as N2200). NDI-based polymers exhibited an excellent thickness in sensitivity in organic solar cell devices (OSCs), and NDI-N was first of its kind developed for printable CIL for OSCs [2]. NDI-N can passivate defects or pinholes in the active layer, making large-area device with high efficiency possible.

Compared with perylene diimides (PDIs), NDI-based materials give higher optical transparency, making them ideal candidates in serving as charge-transport layer in organic solar cells.

NDI derivatives also show strong absorption in the UV region and a good UV resistance. For this reason, NDI-based cathode interlayer materials can effectively reduce the damage to the active layer materials caused by the UV irradiation while for the most of the time the solar panels works under direct sunlight.

Cathod interlayer molecule

Cathode interlayer molecule

For high efficient OPV applications



N‐type semiconductor with high electron affinities

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Worldwide shipping

Quick and reliable shipping

High 3436-54-2 purity

High purity

>98% pure

Device structure: ITO/PEDOT:PSS/PBDB-T-2F (PM6):IT-4F/NDI-N (10 nm)/Al [2]

Thickness (nm) VOC (V) JSC (mA cm-2) FF (%) PCE max (%)
110 ± 20 nm 0.86 21.3 76 13.9

General Information

CAS Number 3436-54-2
Chemical Formula C24H28N4O4
Full Name (N,N-dimethylamino)propyl naphthalene diimide
Purity 98% (1H NMR)
Molecular Weight 436.5 g/mol
HOMO / LUMO HOMO = 6.93 eV, LUMO = -3.98 eV [1]
Melting Point (DSC) N/A
Form Bright yellow powder/crystals
Absorption λmax 368 nm (film)
Synonyms NDIN, 2,7-Bis(3-(dimethylamino)propyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone
Solubility/Processing Solvents Methanol, ethanol, trifluoroethanol
Classification / Family Naphthalene diimide (NDI), Cathode interlay materials (CILs), Organic semiconducting materials, Organic Photovoltaics, OLED

Chemical Structure

Chemical structure of NDI-N, CAS 3436-54-2
Chemical structure of NDI-N, CAS 3436-54-2

MSDS Documentation



Batch Quantity Price
M2237A1 1 g £280
M2237A1 5 g £1100
M2237A1 10 g £2000

Literature and Reviews

  1. Highly Stable Organic Solar Cells Based on an Ultraviolet-Resistant Cathode Interfacial Layer, Q. Liao et al., CCS Chem., 3, 1059–1069 (2021); DOI: 10.31635/ccschem.021.202100852.
  2. A Printable Organic Cathode Interlayer Enables over 13% Efficiency for 1-cm2 Organic Solar Cells, Q. Kang et al., Joule 3, 227–239 (2019); doi: 10.1016/j.joule.2018.10.024.
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