The University of North Carolina at Chapel Hill

Nutech Ventures

Wuqiang Wu

Jinsong Huang

Guang Yang

A method of forming a photoactive device includes steps of: forming a photoactive layer, the photoactive layer comprising a perovskite material and a dopant; wherein the photoactive device comprises a positive electrode and a negative electrode; wherein said photoactive layer is directly or indirectly in electronic communication with the positive electrode and directly or indirectly in electronic communication with the negative electrode; and wherein the photoactive device is free of a hole transport layer between the photoactive layer and the positive electrode.

Molecular doping enabled scalable blading of efficient hole transport layer-free perovskite solar cells

Described herein is an ink solution, comprising: i. a composition having the formula ABX; ii. a compound having the formula NH—R—NH; and iii. a solvent. Methods for producing polycrystalline perovskite films using the ink solutions described herein in a fast blading process and the use of the films in photoactive and photovoltaic applications are additionally described.

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Chapel Hill, NC, United States of America

Wuqiang Wu