In recent years the performances of bulk heterojunction organic solar cells (BHOSCs) have improve... more In recent years the performances of bulk heterojunction organic solar cells (BHOSCs) have improved considerably, reaching power conversion efficiencies higher than 10%. However, long-term stability of these devices is still to be achieved. Amongst the phenomena responsible for BHOSCs degradation, great importance is attributed to light exposure which is the cause of several degradation mechanisms. UV light was shown to be responsible for the activation of inverted solar cells, however its role in the degradation of the devices is not fully understood yet. In this communication, we present the results we obtained through ageing tests under continuous illumination, performed on inverted P3HT:PC61BM BHOSCs where different metal oxides and polymers were used as Electron Transport Layers (ETLs). To understand the role of UV light in devices’ degradation, a subset of the tested samples were exposed to light under a UV filter. The results we obtained show that UV light deteriorates devices...
In recent years the performances of bulk heterojunction organic solar cells (BHOSCs) have improve... more In recent years the performances of bulk heterojunction organic solar cells (BHOSCs) have improved considerably, reaching power conversion efficiencies higher than 10%. However, long-term stability of these devices is still to be achieved. Amongst the phenomena responsible for BHOSCs degradation, great importance is attributed to light exposure which is the cause of several degradation mechanisms. UV light was shown to be responsible for the activation of inverted solar cells, however its role in the degradation of the devices is not fully understood yet. In this communication, we present the results we obtained through ageing tests under continuous illumination, performed on inverted P3HT:PC61BM BHOSCs where different metal oxides and polymers were used as Electron Transport Layers (ETLs). To understand the role of UV light in devices’ degradation, a subset of the tested samples were exposed to light under a UV filter. The results we obtained show that UV light deteriorates devices...
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Papers by William Greenbank