Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Validation Study color rendering index exchange‐spring magnetic structure field‐free switching flexible organic solar cell flexible solar cells flexible transparent electrode high‐boiling‐point nonhalogenated solvent large‐area modules metal oxide neutral color nucleation and growth kinetics organic solar cells semitransparent organic solar cells silver nanowires spin‐orbit torque stability ternary photoactive layers unconventional spin polarization “Welding”