scholarly journals Effect of metal cathode reflectance on the exciton-dissociation efficiency in heterojunction organic solar cells

2009 ◽  
Vol 94 (10) ◽  
pp. 103303 ◽  
Author(s):  
Ajay K. Pandey ◽  
Paul E. Shaw ◽  
Ifor D. W. Samuel ◽  
Jean-Michel Nunzi
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Exciton Dissociation ◽  
Dissociation Efficiency ◽  
Metal Cathode

scholarly journals Diffusion-enhanced exciton dissociation in single-material organic solar cells

2021 ◽  
Vol 23 (37) ◽  
pp. 20848-20853
Author(s):  
Nong V. Hoang ◽  
Vasileios C. Nikolis ◽  
Lukasz Baisinger ◽  
Koen Vandewal ◽  
Maxim S. Pshenichnikov
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Domain Boundary ◽  
Exciton Dissociation ◽  
Dissociation Efficiency ◽  
Single Material

Multiple crossings at the domain boundary with different molecular orientations enhance the exciton dissociation efficiency in single-material organic solar cells.

Unraveling the Temperature Dependence of Exciton Dissociation and Free Charge Generation in Nonfullerene Organic Solar Cells

Solar RRL ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 2000789
Author(s):  
Chao Ma ◽  
Christopher C. S. Chan ◽  
Xinhui Zou ◽  
Han Yu ◽  
Jianquan Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Temperature Dependence ◽  
Organic Solar Cells ◽  
Free Charge ◽  
Exciton Dissociation ◽  
Charge Generation

scholarly journals Understanding of Photophysical Processes in DIO Additive-Treated PTB7:PC71BM Solar Cells

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1139
Author(s):  
Xiaojun Su ◽  
Rong Hu ◽  
Guanzhao Wen ◽  
Xianshao Zou ◽  
Mengyao Qing ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electric Field ◽  
Time Scale ◽  
Polymer Solar Cells ◽  
Acid Methyl Ester ◽  
Device Performance ◽  
Operating Voltage ◽  
Exciton Dissociation ◽  
Carrier Recombination ◽  
Dissociation Efficiency

1,8-diiodooctane (DIO) additive is an important method for optimizing the morphology and device performance of polythieno[3,4-b]-thiophene-co-benzodithiophene (PTB7)-based polymer solar cells. However, the effect of DIO additive on charge photogeneration dynamics of PTB7-based polymer solar cells is still poorly understood. In this work, the effect of DIO additive on the carrier photogeneration dynamics, as well as device performance of PTB7: [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) solar cells was studied. Bias-dependent photoluminescence (PL) experiments of a neat PTB7 device show that the exciton cannot be dissociated by the electric field in the device within the operating voltage range, but it can be effectively dissociated by the high electric field. PL and time-resolved PL studies show that DIO additive reduces the phase size of PTB7 in the blend film, resulting in an increased exciton dissociation efficiency. The carrier recombination processes were studied by transient absorption, which shows geminate carrier recombination was suppressed in the DIO-treated PTB7:PC71BM device in ultrafast time scale. The increased exciton dissociation efficiency and suppressed carrier recombination in ultrafast time scale play an important role for DIO-treated PTB7:PC71BM solar cells to attain a higher power conversion efficiency.

scholarly journals Effective Exciton Dissociation and Reduced Charge Recombination in Thick‐Film Organic Solar Cells via Incorporation of Insulating Polypropylene

Solar RRL ◽  
2019 ◽  
Vol 3 (8) ◽  
pp. 1970081 ◽  
Author(s):  
Tong Wang ◽  
Xiao-Yu Yang ◽  
Peng-Qing Bi ◽  
Meng-Si Niu ◽  
Lin Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thick Film ◽  
Organic Solar Cells ◽  
Charge Recombination ◽  
Exciton Dissociation

Effects of CH3NH3PbI(3-x)Clx Perovskite Layer on the Performance of Inverted Type Hybrid Organic Solar Cells Based on ZnO/P3HT

2016 ◽  
Vol 846 ◽  
pp. 292-297
Author(s):  
Nasehah Syamin Sabri ◽  
Chi Chin Yap ◽  
Muhammad Yahaya ◽  
Muhamad Mat Salleh ◽  
Mohammad Hafizuddin Haji Jumali
Keyword(s):  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
Nanorod Arrays ◽  
Exciton Dissociation ◽  
P3ht Film ◽  
Perovskite Layer ◽  
Solar Cell Performance ◽  
Dissociation Efficiency ◽  
Ag Deposition

This paper reports the effect of perovskite layer on enhancing the inverted type hybrid organic solar cell performance. The mixtures of methylammonium iodide (CH3NH3I) and lead (II) chloride (PbCl2) were dissolved in N,N-Dimethylformamide (DMF) solvent and was spin-coated onto fluorine-doped tin oxide (FTO) glass substrate coated with zinc oxide nanorod arrays (ZnONRAs). The poly (3-hexylthiophene-2,5-diyl) (P3HT) film was then spin-coated onto CH3NH3I(3-x)PbClx perovskite layer, followed by silver (Ag) deposition using magnetron sputtering technique. The FTO/ZnO seed/ZnONRAs/CH3NH3PbI(3-x)Clx /P3HT/Ag device was fabricated. A device without perovskite layer was also fabricated for comparison. A power conversion efficiency (PCE) of 0.56% was achieved with the introduction of perovskite layer. The PCE was approximately six times greater than the device without perovskite layer, as a result of wider light absorption range and higher exciton dissociation efficiency.

Sign in / Sign up

Export Citation Format

Share Document