scholarly journals Inserting various cathodic buffer layers to enhancethe performance of Pentacene/C60based organic solar cells

2011 ◽  
Vol 60 (5) ◽  
pp. 058801
Author(s):  
Liu Rui ◽  
Xu Zheng ◽  
Zhao Su-Ling ◽  
Zhang Fu-Jun ◽  
Cao Xiao-Ning ◽  
...  
2011 ◽  
Vol 21 (39) ◽  
pp. 15587 ◽  
Author(s):  
Somnath Dey ◽  
Paola Vivo ◽  
Alexander Efimov ◽  
Helge Lemmetyinen

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.


2011 ◽  
Vol 95 (2) ◽  
pp. 579-585 ◽  
Author(s):  
Andreas Puetz ◽  
Tobias Stubhan ◽  
Manuel Reinhard ◽  
Oliver Loesch ◽  
Elin Hammarberg ◽  
...  

2015 ◽  
Vol 7 (44) ◽  
pp. 24430-24437 ◽  
Author(s):  
Yingguo Yang ◽  
Shanglei Feng ◽  
Meng Li ◽  
Zhongwei Wu ◽  
Xiao Fang ◽  
...  

2017 ◽  
Vol 69 ◽  
pp. 50-55 ◽  
Author(s):  
Lennart Brütsch ◽  
Jens Czolk ◽  
Radian Popescu ◽  
Dagmar Gerthsen ◽  
Alexander Colsmann ◽  
...  

2016 ◽  
Vol 4 (25) ◽  
pp. 6169-6175 ◽  
Author(s):  
Zhenhua Lin ◽  
Jingjing Chang ◽  
Chunfu Zhang ◽  
Jincheng Zhang ◽  
Jishan Wu ◽  
...  

An enhanced photovoltaic performance is achieved by employing a lithium doped ZnO layer as the electron buffer layer for organic solar cells.


2011 ◽  
Vol 98 (2) ◽  
pp. 023102 ◽  
Author(s):  
Sung-Woo Cho ◽  
Young Tae Kim ◽  
Won Hyun Shim ◽  
Sun-Young Park ◽  
Kwang-Dae Kim ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Pao-Hsun Huang ◽  
Chien-Jung Huang ◽  
Kan-Lin Chen ◽  
Jhong-Ciao Ke ◽  
Yeong-Her Wang ◽  
...  

An optimized hybrid planar heterojunction (PHJ) of small molecule organic solar cells (SM-OSCs) based on copper phthalocyanine (CuPc) as donor and fullerene (C60) as acceptor was fabricated, which obviously enhanced the performance of device by sequentially using both MoO3and pentacene as double anode buffer layers (ABL), also known as hole extraction layer (HEL). A series of the vacuum-deposited ABL, acting as an electron and exciton blocking layer, were examined for their characteristics in SM-OSCs. The performance and reliability were compared between conventional ITO/ABL/CuPc/C60/BCP/Ag cells and the new ITO/double ABL/CuPc/C60/BCP/Ag cells. The effect on the electrical properties of these materials was also investigated to obtain the optimal thickness of ABL. The comparison shows that the modified cell has an enhanced reliability compared to traditional cells. The improvement of lifetime was attributed to the idea of double layers to prevent humidity and oxygen from diffusing into the active layer. We demonstrated that the interfacial extraction layers are necessary to avoid degradation of device. That is to say, in normal temperature and pressure, a new avenue for the device within double buffer layers has exhibited the highest values of open circuit voltage (Voc), fill factor (FF), and lifetime in this work compared to monolayer of ABL.


Sign in / Sign up

Export Citation Format

Share Document