Double‐Layer electron transporting layer for efficient lead sulfide quantum dots solar cells

Abstract

Herein, for the first time, the role of double-layer electron transporting layer (ETL), i.e. ZnO/SnO 2 on the efficiency of lead sulfide quantum dots solar cells is demonstrated. Using this approach, a device with power conversion efficiency of 10.6% is achieved mainly due to the enhancement of open circuit voltage (V OC). The authors reduce the loss-in-potential by 80 mV using ZnO/SnO 2 double-layer ETL. Electronics (RLE) at Massachusetts Institute of Technology. H.T.D. acknowledges postdoctoral fellowship support from the Natural Sciences and Engineering Research Council (NSERC) of Canada.