Reducing Exciton Binding Energy by Increasing Thin Film Permittivity: An Effective Approach To Enhance Exciton Separation Efficiency in Organic Solar Cells

2013 ◽  
Vol 5 (20) ◽  
pp. 10105-10110 ◽  
Author(s):  
Sibel Y. Leblebici ◽  
Teresa L. Chen ◽  
Paul Olalde-Velasco ◽  
Wanli Yang ◽  
Biwu Ma
2019 ◽  
pp. 1900598 ◽  
Author(s):  
Iftikhar Ahmed Channa ◽  
Andreas Distler ◽  
Michael Zaiser ◽  
Christoph J. Brabec ◽  
Hans‐Joachim Egelhaaf

2010 ◽  
Vol 94 (12) ◽  
pp. 2332-2336 ◽  
Author(s):  
Sun-Young Park ◽  
Hye-Ri Kim ◽  
Yong-Jin Kang ◽  
Dong-Ho Kim ◽  
Jae-Wook Kang

Author(s):  
L. Benatto ◽  
C. A. M. Moraes ◽  
G. Candiotto ◽  
K. R. A. Sousa ◽  
J. P. A. Souza ◽  
...  

Our results provide a simple relationship involving the driving force and binding energy of CT state to maximize charge generation in non-fullerene organic solar cells.


2021 ◽  
Vol 95 (3) ◽  
pp. 30201
Author(s):  
Xi Guan ◽  
Yufei Wang ◽  
Shang Feng ◽  
Jidong Zhang ◽  
Qingqing Yang ◽  
...  

Organic solar cells (OSCs) have been fabricated using cathode buffer layers based on bathocuproine (BCP) and 4,4'-N,N'-dicarbazole-biphenyl (CBP). It is found that despite nearly same power conversion efficiencies, the bilayer of BCP/CBP shows increased thermal stability of device than the monolayer of BCP, mostly because upper CBP thin film stabilizes under BCP thin film. The mixed layer of BCP:CBP gives slightly decreased efficiency than BCP and BCP/CBP, mostly because the electron mobility of the OSC using BCP:CBP is decreased than those using BCP and BCP/CBP. However, the BCP:CBP increases thermal stability of device than BCP and BCP/CBP, ascribed to that the BCP and CBP effectively inhibit reciprocal tendencies of crystallizations in the mixed layer. Moreover, the BCP:CBP improves the light stability of device than the BCP and BCP/CBP, because the energy transfer from BCP to CBP in in the mixed layer effectively decelerates the photodegradation of BCP. We provide a facial method to improve the stabilities of cathode buffer layers against heat and light, beneficial to the commercial development of OSCs.


2017 ◽  
Vol 9 ◽  
pp. 64-69 ◽  
Author(s):  
Osman Örnek ◽  
Zühal Alpaslan Kösemen ◽  
Sadullah Öztürk ◽  
Betül Canımkurbey ◽  
Şaban Fındık ◽  
...  

2017 ◽  
Vol 5 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Haruto Maruhashi ◽  
Takeo Oku ◽  
Atsushi Suzuki ◽  
Tsuyoshi Akiyama ◽  
Yasuhiro Yamasaki

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