TY - JOUR
T1 - Ultraviolet-Durable Flexible Nonfullerene Organic Solar Cells Realized by a Hybrid Nanostructured Transparent Electrode
AU - Xu, Tao
AU - Gong, Chunliu
AU - Wang, Shuanglong
AU - Lian, Hong
AU - Lan, Weixia
AU - Lévêque, Gaëtan
AU - Grandidier, Bruno
AU - Plain, Jerôme
AU - Bachelot, Renaud
AU - Wei, Bin
AU - Zhu, Fu Rong
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (61775130, 11974236), Natural Science Foundation of Shanghai (19ZR1419500), Research Grants Council, University Grants Committee of Hong Kong Special Administrative Region, China, General Research Fund (GRF/12302419), Collaborative Research Fund (C5037-18GF), NSFC/RGC Joint Research Scheme (N_HKBU201/19), and Hong Kong Baptist University Inter-institutional Collaborative Research Scheme (RC-ICRS/15-16/04).
PY - 2020/5/1
Y1 - 2020/5/1
N2 - A significant enhancement in ultraviolet (UV)-durable indium tin oxide (ITO)-free flexible nonfullerene organic solar cells (OSCs) is demonstrated using a hybrid nanostructured flexible transparent electrode (FTE), comprising a mixture of 0D silver nanoparticles, 1D Ag nanowires, and 2D exfoliated graphene sheets. The FTE exhibits high optical transparency and electric conductivity, good air stability, and full solution fabrication capability at a low processing temperature. An average power convention efficiency of 8.15% is obtained for the flexible nonfullerene OSCs, based on the blend of poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-b′]dithiophene))-alt-(5,5-(1′,3′-di-2-thienyl-5′,7′-bis(2-ethylhexyl)benzo[1′,2′-c:4′,5′-c′]dithiophene-4,8-dione)] (PBDB-T): 3,9- bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′] dithiophene (ITIC). The flexible PBDB-T:ITIC OSCs exhibit an excellent UV durability compared with the ITO-based control cell, realized by incorporating an FTE with a tailored absorption at wavelengths <380 nm. The novel FTE developed in this work provides a promising alternative to ITO for use in UV-durable flexible OSCs, serving as a built-in UV filter to impede an inevitable UV-induced degradation in ITO-based OSCs.
AB - A significant enhancement in ultraviolet (UV)-durable indium tin oxide (ITO)-free flexible nonfullerene organic solar cells (OSCs) is demonstrated using a hybrid nanostructured flexible transparent electrode (FTE), comprising a mixture of 0D silver nanoparticles, 1D Ag nanowires, and 2D exfoliated graphene sheets. The FTE exhibits high optical transparency and electric conductivity, good air stability, and full solution fabrication capability at a low processing temperature. An average power convention efficiency of 8.15% is obtained for the flexible nonfullerene OSCs, based on the blend of poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-b′]dithiophene))-alt-(5,5-(1′,3′-di-2-thienyl-5′,7′-bis(2-ethylhexyl)benzo[1′,2′-c:4′,5′-c′]dithiophene-4,8-dione)] (PBDB-T): 3,9- bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′] dithiophene (ITIC). The flexible PBDB-T:ITIC OSCs exhibit an excellent UV durability compared with the ITO-based control cell, realized by incorporating an FTE with a tailored absorption at wavelengths <380 nm. The novel FTE developed in this work provides a promising alternative to ITO for use in UV-durable flexible OSCs, serving as a built-in UV filter to impede an inevitable UV-induced degradation in ITO-based OSCs.
KW - flexible organic solar cells
KW - flexible transparent electrodes
KW - hybrid nanostructures
KW - silver nanowires
KW - ultraviolet durability
UR - http://www.scopus.com/inward/record.url?scp=85084916498&partnerID=8YFLogxK
U2 - 10.1002/solr.201900522
DO - 10.1002/solr.201900522
M3 - Journal article
AN - SCOPUS:85084916498
SN - 2367-198X
VL - 4
JO - Solar RRL
JF - Solar RRL
IS - 5
M1 - 1900522
ER -
