Home
Resources
Publications
Initial Light Soaking Treatment Enables Hole Transport Material to Outperform spiro-OMeTAD in Solid-State Dye-Sensitized Solar Cells

Initial Light Soaking Treatment Enables Hole Transport Material to Outperform spiro-OMeTAD in Solid-State Dye-Sensitized Solar Cells

Lei Yang, Bo Xu, Dongqin Bi, Haining Tian, Gerrit Boschloo, Licheng Sun, Anders Hagfeldt, Erik M J Johansson

J Am Chem Soc. 2013 May 15;135(19):7378-85.

PMID: 23611020

Abstract:

Efficient solid state dye-sensitized solar cells (sDSCs) were obtained using a small hole transport material, MeO-TPD (N,N,N',N'-tetrakis(4-methoxyphenyl)benzidine), after an initial light soaking treatment. It was discovered that the light soaking treatment for the MeO-TPD based solar cells is essential in order to achieve the high efficiency (4.9%), which outperforms spiro-OMeTAD based sDSCs using the same dye and device preparation parameters. A mechanism based on Li(+) ion migration is suggested to explain the light soaking effect. It was observed that the electron lifetime for the MeO-TPD based sDSC strongly increases after the light soaking treatment, which explains the higher efficiency. After the initial light soaking treatment the device efficiency remains considerably stable with only 0.2% decrease after around 1 month (unsealed cells stored in dark).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP122738210	N,N,N′,N′-Tetrakis(4-methoxyphenyl)benzidine		122738-21-0	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: