The Renaissance of Iron Pyrite Photovoltaics: Progress, Challenges, and Perspectives - Low-cost Nanomaterials: Toward Greener and More Efficient Energy Applications - page 159

Fig. 20 On/Off cycle response in (top) normal AM 1.5 light and (bottom) IR source for both QD
and cube utilizing systems. Reprinted with permissions from [ 63 ]
• Better understanding of actual effects of sulfur deficiencies and how to elim-
inate them.
• New synthetic techniques that allow for quicker reaction times and scalability.
• Why pyrite has such a high absorption coefficient even with an indirect band
gap.
• What are the effects of doping and how will it allow tune-ablitiy of pyrite's
band gap
• The cause for low open circuit voltage and how to eliminate this problem.
With the solving of these problems, pyrite may become a golden material that
will benefit all.