The role of fullerenes in the environmental stability of polymer:fullerene solar cells

Harrison Ka Hin Lee; Andrew M. Telford; Jason A. Röhr; Mark F. Wyatt; Beth Rice; Jiaying Wu; Alexandre de Castro Maciel; Sachetan M. Tuladhar; Emily M. Speller; James McGettrick; Justin Searle; Sebastian Pont; Trystan Watson; Thomas Kirchartz; James R. Durrant; Wing Chung Tsoi; Jenny Nelson; Zhe Li

doi:10.1039/c7ee02983g

Key Points

To examine the specific role of fullerenes in mediating the environmental stability and operational lifetime of encapsulation-free polymer solar cells.
Evaluated degradation pathways of polymer:fullerene active layers under atmospheric exposure.
Assessed environmental barriers limiting the commercialization of unencapsulated organic optoelectronic devices.
Fullerene components act as primary drivers of performance loss during ambient environmental exposure.
Commercial viability of unencapsulated organic photovoltaics requires mitigating fullerene-specific degradation mechanisms.

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Implication

Mechanistic investigation reveals fullerene degradation pathways in polymer solar cells, indicating key requirements for encapsulation-free stability.

Abstract

Environmental stability is a common challenge for the commercialisation of low cost, encapsulation-free organic opto-electronic devices.

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Lee et al. (2018) studied this question.

synapsesocial.com/papers/6a909ab4b5af3153048a55e1 https://doi.org/10.1039/c7ee02983g

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The role of fullerenes in the environmental stability of polymer:fullerene solar cells

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The role of fullerenes in the environmental stability of polymer:fullerene solar cells

Key Points

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