Current Advancements in Material Research and Techniques Focusing on Lead-free Perovskite Solar Cells

Abstract

Dr. Liguo Gao graduated from Jilin University. Now he is working at Dalian University of Technology. His interests include researching on integrating silicon solar cell with perovskite solar cell, developing novel architecture for perovskite solar cells, and photoelectrochemical systems such as fabricating photoanodes by nanoepitaxy TiO 2 on Si substrate for solar water splitting.Chu Zhang is a Ph.D. candidate of Tingli Ma's Lab, Kyushu Institute of Technology. He received bachelor's degree from Sun Yat-Sen University in 2010, and master's degree from Oregon State University in 2014. His current research field is focused on Pb-free perovskite material and the perovskite solar cell devices. AbstractOrganicinorganic lead halide perovskite solar cells (PSCs) recently achieved a photo-to-electricity conversion efficiency (PCE) of 22.1%. They drew much attention as promising photovoltaic devices. However, the Pb-based PSCs face great challenges for commercial and industrial applications due to the instability and the toxicity of perovskite materials. Herein, we summarize the current development of various types of Pb-free perovskites, such as the Sn-, Bi-, Ge-, Sr-, and Cu-based perovskites and their devices. In addition, we will address some remaining issues and prospects of the Pb-free PSCs.

High‐Quality Cs2AgBiBr6 Double Perovskite Film for Lead‐Free Inverted Planar Heterojunction Solar Cells with 2.2 % Efficiency

“…[4][5][6][7] To promote the large-scale commercialization of this promising optoelectronic photovoltaic device, the long-term stability and toxicity of the Pb-based perovskite material remain the biggest challenges. [11][12][13][14][15] Tin (Sn), an element possessing similar property with Pb (locates in the same main group and shows similar outer electronic configuration), has been found to exhibit great potential in solar cell application. [11][12][13][14][15] Tin (Sn), an element possessing similar property with Pb (locates in the same main group and shows similar outer electronic configuration), has been found to exhibit great potential in solar cell application.…”

Bismuth doped lead-free two-dimensional tin based halide perovskite single crystals

“…In addition, despite the superior properties of lead halide perovskites, the toxicity of Pb hinders their commercial potential. Thus, increasing attention has been focused on environmentally-friendly lead-free alternatives, in particular for Sn which comes from the same Group of periodic table with Pb [9,[19][20][21][22][23][24][25][26][27] .…”

Lead‐Free Halide Perovskite Nanocrystals: Crystal Structures, Synthesis, Stabilities, and Optical Properties

“…To this end, Sn II , Sn IV , Sb III , Bi III , Pd IV , Cu II , In III , and Ag I have been employed to replace Pb and yield LFHP NCs. There have been several Reviews and perspectives focusing on LFHP thin films in literature . It is notable that only three Reviews have been published pertaining to LFHP NCs.…”