Carbazole‐Based Molecular Glasses as Hole‐Transporting Materials in Solid State Dye‐Sensitized Solar Cells. Issue 3 (23rd April 2015)

• Record Type: Journal Article
• Authors: Bui, Thanh‐Tuân; Shah, Said Karim; Abbas, Mamatimin; Sallenave, Xavier; Sini, Gjergji; Hirsch, Lionel; Goubard, Fabrice
• Is Part Of: ChemNanoMat. Volume 1:Issue 3(2015)
• Page Start: 203
• Page End: 210
• Publication Date: 2015-04-23
• Subjects: carbazole -- density functional calculations -- dye-sensitized solar cells -- hole transporting material -- molecular glasses; Nanochemistry -- Periodicals; Nanostructured materials -- Periodicals; Nanochemistry; Nanostructured materials; Periodicals; 541.2
• DOI: 10.1002/cnma.201500014
• Languages: English
• ISSNs: 2199-692X

Abstract

Abstract: Three 3, 6‐di(4‐methoxyphenyl)amino N ‐alkylated carbazoles were synthesized, characterized and incorporated in solid state dye‐sensitized solar cells. Devices using these compounds as solid hole conductors showed relative high V oc thanks to good energy level matching between them and D102 dye. However, they yield relatively low J sc and FF compared to spiro‐OMeTAD‐based control devices, which is due to an order of magnitude lower mobility and conductivity with respect to spiro‐OMeTAD. Maximum PCEs for N ‐ethyl and N ‐hexyl 3, 6‐di(4‐methoxyphenyl)amino carbazoles (2 a, 2 b) are 1.6 %, and 1.8 % respectively, whereas spiro‐OMeTAD devices gave 4.4 %. Stability tests in air under continuous illumination have been reported. Abstract : Do you need glasses? Carbazole‐based molecular glasses were synthesized and incorporated as hole conductors in solid state dye‐sensitized solar cells. The maximum power conversion efficiency is 1.8 % for one of these compounds. Stability tests of unencapsulated devices in air under continuous illumination are reported.