Journal Article polymer solar cells Research Support, Non-U.S. Gov't B←N bonds BN bonds Electrolytes PbS quantum dot Polymers Research Support, U.S. Gov't, Non-P.H.S. conjugated polymers detectivity donor terpolymers external quantum efficiency high efficiency hole transport layer interfacial modification inverted devices morphology control multijunction naphtho[1,2-c:5,6-c]bis(2-octyl-[1,2,3]triazole) non-radiative recombination nonfullerene organic solar cells nonhalogenated solvents operational stability organic photodetectors organic solar cells out-of-plane electrostatic dipoles polythiophene derivatives quinoidal molecular semiconductor saddle-shaped molecules