scholarly journals Influence of Phase Segregation on Recombination Dynamics in Organic Bulk-Heterojunction Solar Cells

2011 ◽  
Vol 21 (9) ◽  
pp. 1687-1692 ◽  
Author(s):  
Andreas Baumann ◽  
Tom J. Savenije ◽  
Dharmapura Hanumantharaya K. Murthy ◽  
Martin Heeney ◽  
Vladimir Dyakonov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Phase Segregation ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Recombination Dynamics

Revealing the recombination dynamics in squaraine-based bulk heterojunction solar cells

2017 ◽  
Vol 111 (18) ◽  
pp. 183502 ◽  
Author(s):  
Dorothea Scheunemann ◽  
Oliver Kolloge ◽  
Sebastian Wilken ◽  
Majvor Mack ◽  
Jürgen Parisi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Recombination Dynamics

All-polymer bulk heterojunction solar cells with high fill factors based on blends of poly-3-hexylthiophene: poly(perylene diimide-alt-terthiophene)

2012 ◽  
Vol 1390 ◽  
Author(s):  
Dariusz Kotowski ◽  
Erika Kozma ◽  
Marinella Catellani ◽  
Silvia Luzzati
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Phase Segregation ◽  
Perylene Diimide ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Single Carrier ◽  
Polymer Bulk ◽  
Photovoltaic Characteristics ◽  
Absorption And Emission Spectroscopy

ABSTRACTThe photovoltaic characteristics of all polymer bulk heterojunction solar cells made of P3HT and a perylene diimide-based copolymer (PEK3) have been studied. Thermal annealing is needed to improve the performances. Annealing optimization induces an enhancement of the power conversion efficiency from 0.06 to 1%, Jsc from 0.24 to 2.9 mA/cm2 and FF from 0.32 to 0.59. The origin of such improvements has been investigated by studying the P3HT:PEK3 blend morphology, by means of absorption and emission spectroscopy and charge transport, from single carrier measurements on P3HT:PEK3 diodes. Upon annealing we have observed an increase in phase segregation and a 100-fold enhancement of the hole and electron mobilities, that favor the dissociation of bound electron-hole pairs and their transport to the electrodes. This explains the high FF of the annealed P3HT:PEK3 solar cell.

Non-geminate Recombination Limits Fill Factor in Polymer:ITIC Bulk Heterojunction Solar Cells

2019 ◽  
Author(s):  
Jafar Khan ◽  
Yuliar Firdaus ◽  
Federico Cruciani ◽  
Shengjian Liu ◽  
Denis Andrienko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Bulk Heterojunction ◽  
Geminate Recombination ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

Soluble porphyrin donors for small molecule bulk heterojunction solar cells

2012 ◽  
Vol 22 (36) ◽  
pp. 19258 ◽  
Author(s):  
Junichi Hatano ◽  
Naoki Obata ◽  
Shigeru Yamaguchi ◽  
Takeshi Yasuda ◽  
Yutaka Matsuo
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells
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