Abstract
We present the use of covalently functionalized carbon nanostructures (CNSs) such as single-wall carbon nanotubes (SWCNTs) and graphene nanoplatelets (GNPs), as conductive nanofillers in a P3HT matrix. We propose a simple approach for the preparation of the active blends used as hole transport layer (HTL) in mesoporous perovskite solar cells (PSCs). We demonstrate that for both SWCNT and GNP nanofillers, power conversion efficiencies (∼10%) and shelf life stabilities (over 3240 hours) are improved with respect to PSCs using bare P3HT as the HTL.
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