ETA-ZNO – Extremly Thin Absorber Solar Cells based on electrodeposited ZnO nanostructures

• Unité de recherche: OFEN
• Numéro de projet: SI/500426

Description succincte (Allemand)

Extremly Thin Absorber Solar Cells based on electrodeposited ZnO nanostructures

Rapport final (Anglais)

High surface area nanowire based architectures have been identified as important components for future optoelectronic nanodevices, solar cells, wettability coatings, gas sensors, and biofuel cells. Here we report on a novel urchin-inspired nan-owire architecture: its interwoven three-dimensional, high-surface-area nanowire arrangement can be precisely controlled by using a low-cost and scalable synthesis based on a combination of nanosphere lithography, low-temperature atomic layer deposition, and electrodeposition. The performance of single-layer arrays of urchin-inspired ZnO nanowire building blocks competes to that of planar nanowire carpets. We illustrate this capability by fabricating fully-inorganic extremely thin absorber solar cells using CdSe as absorber and CuSCN as hole-collector material. The light diffusion of the urchin-inspired nanowire arrays was varied from 15% to 35%. Homogenous absorption in the wavelength range of 400-800 nm of up to 90% was obtained. Solar conversion efficiencies of ~ 1.33% were achieved.

Auftragnehmer/Contractant/Contraente/Contractor:
EMPA Thun

Autorschaft/Auteurs/Autori/Authors:
Elias,Jamil
Philippe,Laetitia
Michler,Johann

Documents annexés

• ETA SOLAR CELL | Extremely thin absorber solar cell based on electrodeposited ZnO nanostructures - Final report [PDF] 4'998 kB