TY - JOUR
T1 - Enhancing Charge Generation in Nonfullerene Interdigitated Heterojunction Organic Solar Cells
AU - Salamatbakhsh, Roya
AU - Raeyani, Davoud
AU - Asgari, Asghar
PY - 2024/9
Y1 - 2024/9
N2 - Interdigitated heterojunction (IHJ) structures have recently been investigated as an alternatives to bulk heterojunction (BHJ) structures due to their better film morphology stability, reproducibility, and contact selectivity. Herein, the electrical and optical properties of a nonfullerene IHJ structure are investigated using drift diffusion and Maxwell equations and compared with other conventional structures. Based on simulation results, the IHJ structure demonstrates electrical advantages such as enhanced charge transport pathways and reduced nonradiative recombination and exhibits superior optical absorption profiles compared to the BHJ structure, owing to its photonic crystal-like structure. A method is also proposed to further enhance the optical absorption of this structure by introducing a third organic material with absorption capabilities in the near-infrared range, increasing the solar cell power conversion efficiency from 18.42% to over 19.5%.
AB - Interdigitated heterojunction (IHJ) structures have recently been investigated as an alternatives to bulk heterojunction (BHJ) structures due to their better film morphology stability, reproducibility, and contact selectivity. Herein, the electrical and optical properties of a nonfullerene IHJ structure are investigated using drift diffusion and Maxwell equations and compared with other conventional structures. Based on simulation results, the IHJ structure demonstrates electrical advantages such as enhanced charge transport pathways and reduced nonradiative recombination and exhibits superior optical absorption profiles compared to the BHJ structure, owing to its photonic crystal-like structure. A method is also proposed to further enhance the optical absorption of this structure by introducing a third organic material with absorption capabilities in the near-infrared range, increasing the solar cell power conversion efficiency from 18.42% to over 19.5%.
KW - bulk heterojunctions
KW - Interdigitated nonfullerenes
KW - Near-IR Absorptions
KW - ternary
UR - http://www.scopus.com/inward/record.url?scp=85198512450&partnerID=8YFLogxK
U2 - 10.1002/pssa.202400364
DO - 10.1002/pssa.202400364
M3 - Article
AN - SCOPUS:85198512450
SN - 1862-6300
VL - 221
JO - Physica Status Solidi (A) Applications and Materials Science
JF - Physica Status Solidi (A) Applications and Materials Science
IS - 18
M1 - 2400364
ER -