The authors regret that a related article was not cited in the original published article.1 In the first paragraph, the sentence “We introduce a surface treatment with isopropanol to improve wetting without the need to add surfactant into poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) in the charge recombination zone (CRZ).” should include a citation for Yeh et al. (2014).2 

This erratum does not affect any result or conclusion of the original letter.

1.
X.
Huang
,
B.
Sun
,
Y.
Li
,
C.
Jiang
,
D.
Fan
,
J.
Fan
, and
S. R.
Forrest
,
Appl. Phys. Lett.
116
,
153501
(
2020
).
2.
P. N.
Yeh
,
S. H.
Liao
,
Y. L.
Li
,
H. R.
Syue
, and
S. A.
Chen
,
Sol. Energy Mater. Sol. Cells
128
,
240
(
2014
).