A Solid-State Hybrid Solar Cell Made of nc-TiO2, CdS Quantum Dots, and P3HT with 2-Amino-1-methylbenzimidazole as an interface Modifier

作者：Balis Nikolaos; Dracopoulos Vassilios; Stathatos Elias; Boukos Nikolaos; Lianos Panagiotis^*

来源：Journal of Physical Chemistry C, 2011, 115(21): 10911-10916.

DOI：10.1021/jp2022264

Solid-state hybrid solar cells have been constructed using nanocrystalline titania as an electron acceptor and transporter, CdS quantum dots as a sensitizer, and poly(3-hexylthiophene) as a hole transporter. Nanocrystalline titania consisted of a bottom compact layer about 340 nm thick and a top layer about 3.4 mu m thick that formed an open structure. CdS quantum dots were deposited by successive ionic layer adsorption and reaction. Poly(3-hexylthiophene) was deposited on the top by spin-coating using a solution that also contained 2-amino-1-methylbenzimidazole. The latter greatly affected cell performance that reached an efficiency of 0.87%, which is among the highest values recorded with cells of the present combination. The above cells were very easy to assemble. All layers were applied at ambient conditions, including the top silver electrodes. Cells demonstrated a remarkable stability, even though they were neither sealed nor encapsulated.

• 出版日期2011-6-2