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Molecular Monolayers for Electrical Passivation and Functionalization of Silicon-Based Solar Energy Devices.

ACS applied materials & interfaces (2016-12-10)
Janneke Veerbeek, Nienke J Firet, Wouter Vijselaar, Rick Elbersen, Han Gardeniers, Jurriaan Huskens
ABSTRACT

Silicon-based solar fuel devices require passivation for optimal performance yet at the same time need functionalization with (photo)catalysts for efficient solar fuel production. Here, we use molecular monolayers to enable electrical passivation and simultaneous functionalization of silicon-based solar cells. Organic monolayers were coupled to silicon surfaces by hydrosilylation in order to avoid an insulating silicon oxide layer at the surface. Monolayers of 1-tetradecyne were shown to passivate silicon micropillar-based solar cells with radial junctions, by which the efficiency increased from 8.7% to 9.9% for n

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
1-Tetradecyne, ≥97.0%
Sigma-Aldrich
1,8-Nonadiyne, 98%