Inverted organic solar cell with ultrasonic spray deposited active layer

To address the problem of operational stability in conventional design of Organic Solar Cells (OSC), inverted solar cell structures are being investigated extensively. Inverted solar cell structures with ZnO nano-rods array (NRA) as interfacial layer is attracting much attention due to beneficial ro...

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Bibliographic Details
Published in:Optik (Stuttgart) 2017-02, Vol.131, p.1079-1084
Main Authors: Almuntaser, Faisal M.A., Majumder, Sutripto, Sali, J.V., Sankapal, B.R.
Format: Article
Language:English
Subjects:
Organic solar cells
P3HT: PCBM
Ultrasonic spray method
ZnO
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Summary:To address the problem of operational stability in conventional design of Organic Solar Cells (OSC), inverted solar cell structures are being investigated extensively. Inverted solar cell structures with ZnO nano-rods array (NRA) as interfacial layer is attracting much attention due to beneficial role played by ZnO NRAs. It not only addresses the limitation on charge extraction due to limited charge mobility but also simultaneously it can provide high-mobility routes to the charge carriers to reach to the cathode electrode also. In this paper we report synthesis of inverted OSC with active layer infiltrated in the ZnO nanorods array using Ultrasonic Spray method and confirmed total infiltration. Performance enhancement has been observed by addition of a thin PCBM layer between the electron transport layer and the active layer. The improvement has been attributed to the improved charge collection efficiency due to presence of PCBM layer.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2016.12.009