TY - JOUR
T1 - Grain-boundary grooves in perovskite solar cells
AU - Hao, Mingwei
AU - Zhou, Yuanyuan
N1 - Funding Information:
Y.Z. acknowledge the Excellent Young Scientists Fund (no. 52222318) from the National Natural Science Foundation of China and the Early Career Scheme (no. 22300221), General Research Fund (no. 12302822), and NSFC/RGC Collaborative Research Scheme (CRS_HKUST203/23) from the Hong Kong Research Grant Council (RGC). Y.Z. also acknowledges funding support from the startup grants of the Hong Kong University of Science and Technology. M.H. acknowledges support from the Hong Kong Ph.D. Fellowship.
Publisher Copyright:
© 2024 Published by Elsevier Inc.
PY - 2024/4/17
Y1 - 2024/4/17
N2 - As a general materials phenomenon driven by thermodynamics, grain boundary network, when extending onto the film surface or interface, can create an intriguing grooving geometry. Such formed grain-boundary grooves (GBGs) invariably influence the heterointerface microstructures in perovskite solar cells (PSCs). Herein, we present a unique, focused discussion on this prominent yet rarely studied microstructure type. In this perspective, we first illustrate the fundamental theories that govern the formation of GBGs and their dynamics. Then, we envision the effects of GBGs on carrier transport, chemical stability, and mechanical reliability of perovskite thin films. Finally, we propose possible engineering methods to tailor GBGs for PSCs with enhanced efficiency and durability.
AB - As a general materials phenomenon driven by thermodynamics, grain boundary network, when extending onto the film surface or interface, can create an intriguing grooving geometry. Such formed grain-boundary grooves (GBGs) invariably influence the heterointerface microstructures in perovskite solar cells (PSCs). Herein, we present a unique, focused discussion on this prominent yet rarely studied microstructure type. In this perspective, we first illustrate the fundamental theories that govern the formation of GBGs and their dynamics. Then, we envision the effects of GBGs on carrier transport, chemical stability, and mechanical reliability of perovskite thin films. Finally, we propose possible engineering methods to tailor GBGs for PSCs with enhanced efficiency and durability.
KW - grain boundary groove
KW - perovskite
KW - solar cell
UR - http://www.scopus.com/inward/record.url?scp=85188794424&partnerID=8YFLogxK
U2 - 10.1016/j.joule.2024.03.002
DO - 10.1016/j.joule.2024.03.002
M3 - Journal article
AN - SCOPUS:85188794424
SN - 2542-4351
VL - 8
SP - 913
EP - 921
JO - Joule
JF - Joule
IS - 4
ER -
