Ravichandran Shivanna

TL;DR: This approach produces a wider bandgap top layer and a more n-type perovskite film, which mitigates nonradiative recombination, leading to an increase in Voc by up to 100 millivolts, which led to a stabilized power output approaching 21% at the maximum power point.

TL;DR: In this article, the authors demonstrate perovskite-polymer bulk heterostructure light-emitting diodes exhibiting external quantum efficiencies of up to 20.1% (at current densities of 0.1-1.1 µm−2).

TL;DR: This work exemplifies how the functionality of metal halide perovskites is extremely sensitive to the nature of the (nano)crystalline surface and presents a route through which to control the formation and migration of surface defects to achieve bandgap stability for light emission and could also have a broader impact on other optoelectronic applications-such as photovoltaics-for which band gap stability is required.

TL;DR: This work has shown that disrupting the crystallinity without adversely impacting the charge-transfer properties of PDIs is proposed as an important design principle, resulting in one of the highest JSC values for a solution processed device featuring a PDI.

TL;DR: In this article, the origin of high current density in efficient non-fullerene based bulk heterojunction (BHJ) organic solar cells employing a nonplanar perylene dimer (TP) as an electron acceptor and a thiophene based donor polymer PBDTTT-CT was investigated using electrical and optical techniques.