Organic–inorganic hybrid perovskite solar cells (PSCs) have made unprecedented progress
in the past ten years, the power conversion efficiency of which increased from 3.8% in 2009 …

The dawn of a new era in optoelectronic technologies has emerged with the recent
development of the organic–inorganic hybrid halide perovskite. Its exceptional attributes …

This article reviews the various hole transporting materials (HTMs) used in perovskite solar
cells (PSCs) in achieving high photo-conversion efficiency (PCE) and operational stability …

Charge transport materials in heterojunction solar cells (eg perovskite solar cells (PSCs))
play critical roles in determining charge dynamics, photovoltaic performance and device …

While energy shortage is always an issue, the impending exhaustion of fossil fuel sources
makes it an ever increasingly pressing one. Photovoltaic technology brings hope in the …

Recently, organometal halide perovskite solar cells (PSCs) have attracted considerable
attention because of their extremely high power conversion efficiency (PCE). Not only does …

This review summarizes the current designs and development of new types of organic small
molecules as a hole-transporting material (HTM) in a meso-structured perovskite solar cell …

A general do** strategy, using a wide range of acids with different pKa values as additive,
is demonstrated to enhance the conductivity of spiro-OMeTAD, the dominant hole transport …

This work presents a review and analysis of a database containing 1921 solar cell device
performance data points extracted from 800 publications on the (organo)-lead-halide …

Chemical do** of organic semiconductors enables significant progress in improving their
optoelectronic performance. However, the correlation between do** counter ions and …