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Product Code M2237A1
Price $275.00 ex. VAT

NDI-N, high quality n‐type semiconductor material

Used to make large-area devices with high efficiencies

NDI-N, 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.

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

Full name (N,N-dimethylamino)propyl naphthalene diimide
Purity 98% (1H NMR)
Synonyms NDIN, 2,7-Bis(3-(dimethylamino)propyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone
Chemical formula C24H28N4O4
Molecular weight 436.5 g/mol
CAS number 3436-54-2
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)
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

MSDS Documentation



Batch Quantity Price
M2237A1 1 g £250
M2237A1 5 g £1000
M2237A1 10 g £1800

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.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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