deletions | additions       diff --git a/The_SQ_limit_is_a__.md b/The_SQ_limit_is_a__.md  index 2071fd4..3cf81c4 100644  --- a/The_SQ_limit_is_a__.md  +++ b/The_SQ_limit_is_a__.md 
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A closer look at the present state of-the-art  performance levels puts the three solar cell efficiency parameters, short-circuit current  ( \(J_{SC} \( J_{SC}  \) ), ,  open-circuit voltage ( \(V_{OC} \( V_{OC}  \) ), ,  and fill factor(  \(FF\))  in the 24-26 mA/cm², mA/cm^2,  840-850 mV, and 74-76% ranges respectively. Defects such as grain boundaries can alter these device parameter\cite{Yan_2011} in a uncontrolled fashion. Pushing cell conversion efficiencies beyond 20% will require primarly increasing \( V_{OC} \) beyond 1V. The current ( \(V_{OC} \) ) is well bellow the expected 1.2 V with respect to the absorber layer band gap. However the present pathway of processing optimization will likely yield \( V_{OC} \) and efficiency converging on 0.9 V and <20%, respectively \cite{McCandless_2013}.