Journal Article organic electronics organic solar cells Organic Chemicals Polymers Research Support, Non-U.S. Gov't Review burn‐in loss charge transfer dimer acceptor electron mobility electronic processes flexible electronics fullerenes intrinsic mobility in donors low driving force organic photovoltaics photodetectors photovoltaic devices photovoltaics small-molecular acceptors solar cells supramolecular stabilizer thermal transition topology trap state voltage loss wearable electronics