TY - JOUR
T1 - Back-contact perovskite solar cell fabrication via microsphere lithography
AU - Deng, Siqi
AU - Tan, Boer
AU - Chesman, Anthony S.R.
AU - Lu, Jianfeng
AU - McMeekin, David P.
AU - Ou, Qingdong
AU - Scully, Andrew D.
AU - Raga, Sonia R.
AU - Rietwyk, Kevin J.
AU - Weissbach, Anton
AU - Zhao, Boya
AU - Voelcker, Nicolas H.
AU - Cheng, Yi Bing
AU - Lin, Xiongfeng
AU - Bach, Udo
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/11
Y1 - 2022/11
N2 - Back-contact electrodes for hybrid organic-inorganic perovskite solar cells (PSCs) eliminate the parasitic absorption losses caused by the transparent conductive electrodes that are inherent to conventional sandwich-architecture devices. However, the fabrication methods for these unconventional architectures rely heavily on expensive photolithography, which limits scalability. Herein, we present an alternative cost-effective microfabrication technique in which the conventional photolithography process is replaced by microsphere lithography in which a close-packed polystyrene microsphere monolayer acts as the patterning mask for the honeycomb-shaped electrodes. A comprehensive comparison between photolithography and microsphere lithography fabrication techniques was conducted. Using microsphere lithography, we achieve highly efficient devices having a stabilized power conversion efficiency (PCE) of 8.6%, twice the reported value using photolithography. Microsphere lithography also enabled the fabrication of the largest back-contact PSC to date, having an active area of 0.75 cm2 and a stabilized PCE of 2.44%.
AB - Back-contact electrodes for hybrid organic-inorganic perovskite solar cells (PSCs) eliminate the parasitic absorption losses caused by the transparent conductive electrodes that are inherent to conventional sandwich-architecture devices. However, the fabrication methods for these unconventional architectures rely heavily on expensive photolithography, which limits scalability. Herein, we present an alternative cost-effective microfabrication technique in which the conventional photolithography process is replaced by microsphere lithography in which a close-packed polystyrene microsphere monolayer acts as the patterning mask for the honeycomb-shaped electrodes. A comprehensive comparison between photolithography and microsphere lithography fabrication techniques was conducted. Using microsphere lithography, we achieve highly efficient devices having a stabilized power conversion efficiency (PCE) of 8.6%, twice the reported value using photolithography. Microsphere lithography also enabled the fabrication of the largest back-contact PSC to date, having an active area of 0.75 cm2 and a stabilized PCE of 2.44%.
KW - Back-contact electrodes
KW - Charge transport distance
KW - Honeycomb-shaped
KW - Microsphere lithography
KW - Perovskite solar cells
KW - Scalability
UR - http://www.scopus.com/inward/record.url?scp=85136708908&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2022.107695
DO - 10.1016/j.nanoen.2022.107695
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:85136708908
SN - 2211-2855
VL - 102
JO - Nano Energy
JF - Nano Energy
M1 - 107695
ER -
