TY - JOUR
T1 - Solar photons beyond the band gap wavelengths
T2 - their effect on solution-processed solar cells
AU - Perrakis, George
AU - Panagiotopoulos, Apostolos
AU - Maksudov, Temur
AU - Aivalioti, Chrysa
AU - Alharbi, Essa A.
AU - Fatayer, Shadi
AU - Heeney, Martin
AU - Tasolamprou, Anna C.
AU - Kenanakis, George
AU - Petridis, Konstantinos
AU - Anthopoulos, Thomas D.
AU - Silva, S. Ravi P.
AU - Graetzel, Michael
AU - Kafesaki, Maria
AU - Kakavelakis, George
N1 - Publisher Copyright:
© 2025 The Royal Society of Chemistry.
PY - 2025/3/26
Y1 - 2025/3/26
N2 - A deep understanding of how solution-processed solar cells (SSCs) perform under varying temperatures and irradiance is crucial for their optimal design, synthesis, and use. However, current partial spectral characterization, primarily below the band gap wavelengths (λ < λg), limits insights into their full operation. In this work, we expand the current knowledge by providing comprehensive full-spectrum experimental optical characterizations (∼300-2500 nm) and theoretical optical-thermal-electrical analysis for the most common high-efficiency single-junction and tandem organic SSCs (OSCs) and perovskite SSCs (PSCs), including p-i-n OSC, n-i-p OSC, p-i-n PSC, n-i-p mesoscopic PSC, OSC/PSC, and PSC/PSC. By incorporating solar photons above λg in our investigation, we uncover the effects of parasitic absorption (∼300-2500 nm) and conversion losses (λ < λg) on operating temperature and power conversion efficiency (PCE) losses, highlighting the conditions, materials, and optimal architectures for reducing device temperature. These improvements could reduce PCE losses by up to ∼7 times compared to conventional silicon wafer-based solar cells in real-world conditions.
AB - A deep understanding of how solution-processed solar cells (SSCs) perform under varying temperatures and irradiance is crucial for their optimal design, synthesis, and use. However, current partial spectral characterization, primarily below the band gap wavelengths (λ < λg), limits insights into their full operation. In this work, we expand the current knowledge by providing comprehensive full-spectrum experimental optical characterizations (∼300-2500 nm) and theoretical optical-thermal-electrical analysis for the most common high-efficiency single-junction and tandem organic SSCs (OSCs) and perovskite SSCs (PSCs), including p-i-n OSC, n-i-p OSC, p-i-n PSC, n-i-p mesoscopic PSC, OSC/PSC, and PSC/PSC. By incorporating solar photons above λg in our investigation, we uncover the effects of parasitic absorption (∼300-2500 nm) and conversion losses (λ < λg) on operating temperature and power conversion efficiency (PCE) losses, highlighting the conditions, materials, and optimal architectures for reducing device temperature. These improvements could reduce PCE losses by up to ∼7 times compared to conventional silicon wafer-based solar cells in real-world conditions.
UR - http://www.scopus.com/inward/record.url?scp=105001724463&partnerID=8YFLogxK
U2 - 10.1039/d5mh00186b
DO - 10.1039/d5mh00186b
M3 - Article
C2 - 40167992
AN - SCOPUS:105001724463
SN - 2051-6347
VL - 12
SP - 2922
EP - 2934
JO - Materials Horizons
JF - Materials Horizons
IS - 9
ER -