TY - JOUR
T1 - Solution-processable electron transport layer for efficient hybrid perovskite solar cells beyond fullerenes
AU - Karuppuswamy, Priyadharsini
AU - hanmandlu, Chintam
AU - Moorthy Boopathi, Karunakara
AU - Perumal, Packiyaraj
AU - Liu, Chi ching
AU - Chen, Yang Fang
AU - Chang, Yun Chorng
AU - Wang, Pen Cheng
AU - Lai, Chao Sung
AU - Chu, Chih Wei
N1 - Publisher Copyright:
© 2017
PY - 2017/9/1
Y1 - 2017/9/1
N2 - A solution-processable planar perylene diimide, N,N´-dipentyl-3,4,9,10-perylenedicarboximide (PDI), has been demonstrated as a suitable acceptor material to replace the conventional fullerene derivatives (e.g., PCBM) found in inverted perovskite solar cells (PSCs). The energy offset between the perovskite and PDI layers was optimized by varying the ratio of halides (iodide to bromide) to improve the exciton dissociation and carrier transport. The PDI acceptor material had higher electron mobility and smoother morphology on perovskite relative to those of PCBM, leading to enhancements in the short circuit current density, fill factor, and power conversion efficiency. The incorporation of PDI in the perovskite devices decreased recombination losses and improved the device stability. The performance of the best PSC containing PDI as the electron transport layer (11%) was higher than that of the best device featuring PCBM (10%).
AB - A solution-processable planar perylene diimide, N,N´-dipentyl-3,4,9,10-perylenedicarboximide (PDI), has been demonstrated as a suitable acceptor material to replace the conventional fullerene derivatives (e.g., PCBM) found in inverted perovskite solar cells (PSCs). The energy offset between the perovskite and PDI layers was optimized by varying the ratio of halides (iodide to bromide) to improve the exciton dissociation and carrier transport. The PDI acceptor material had higher electron mobility and smoother morphology on perovskite relative to those of PCBM, leading to enhancements in the short circuit current density, fill factor, and power conversion efficiency. The incorporation of PDI in the perovskite devices decreased recombination losses and improved the device stability. The performance of the best PSC containing PDI as the electron transport layer (11%) was higher than that of the best device featuring PCBM (10%).
KW - Carrier recombination
KW - Electron transport layer
KW - Hybrid perovskite solar cells
KW - Perylene diimide
KW - Space charge limited current
UR - http://www.scopus.com/inward/record.url?scp=85019167986&partnerID=8YFLogxK
U2 - 10.1016/j.solmat.2017.04.043
DO - 10.1016/j.solmat.2017.04.043
M3 - 文章
AN - SCOPUS:85019167986
SN - 0927-0248
VL - 169
SP - 78
EP - 85
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
ER -
