Ordered Organic–Inorganic Bulk Heterojunction Photovoltaic Cells

MRS Bulletin ◽  
2005 ◽  
Vol 30 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Kevin M. Coakley ◽  
Yuxiang Liu ◽  
Chiatzun Goh ◽  
Michael D. McGehee
Keyword(s):  
Carrier Mobility ◽  
Bulk Heterojunction ◽  
Photovoltaic Cells ◽  
Charge Carrier Mobility ◽  
Polymer Chains ◽  
Bulk Heterojunctions ◽  
Ordered Structures ◽  
Inorganic Semiconductors ◽  
Model Studies ◽  
Almost All

AbstractFabrication of bulk heterojunctions with well-ordered arrays of organic and inorganic semiconductors is a promising route to increasing the efficiency of polymer photovoltaic cells. In such structures, almost all excitons formed are close enough to the organic–inorganic interface to be dissociated by electron transfer, all charge carriers have an uninterrupted pathway to the electrodes, and polymer chains are aligned to increase their charge carrier mobility. Furthermore, ordered structures are interesting because they are relatively easy to model. Studies of ordered cells are likely to lead to better design rules for making efficient photovoltaic cells.

Design Rules to Maximize Charge-Carrier Mobility along Conjugated Polymer Chains

2020 ◽  
Vol 11 (16) ◽  
pp. 6519-6525
Author(s):  
Suryoday Prodhan ◽  
Jing Qiu ◽  
Matteo Ricci ◽  
Otello M. Roscioni ◽  
Linjun Wang ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Conjugated Polymer ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Polymer Chains ◽  
Design Rules ◽  
Conjugated Polymer Chains

Correlating domain purity with charge carrier mobility in bulk heterojunction polymer solar cells

2014 ◽  
Author(s):  
Christian Kästner ◽  
Xuechen Jiao ◽  
Daniel A. M. Egbe ◽  
Harald Ade ◽  
Harald Hoppe
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Charge Carrier Mobility

Effects of conformational symmetry in conjugated side chains on intermolecular packing of conjugated polymers and photovoltaic properties

RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 106044-106052 ◽  
Author(s):  
Jisoo Shin ◽  
Min Kim ◽  
Jaewon Lee ◽  
Donghun Sin ◽  
Heung Gyu Kim ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Conjugated Polymers ◽  
Carrier Mobility ◽  
Light Harvesting ◽  
Charge Carrier Mobility ◽  
Polymer Chains ◽  
Side Chain ◽  
Side Chains ◽  
Photovoltaic Properties

Introduction of the symmetric conjugated side chain to the conjugated backbone of the polymer was found to improve both the light-harvesting ability of the polymer and its charge carrier mobility, apparently by increasing the packing between the polymer chains.

scholarly journals Charge carrier transport and recombination in disordered materials

2016 ◽  
Vol 56 (3) ◽  
pp. 182-189 ◽  
Author(s):  
Gytis Juška ◽  
Kęstutis Arlauskas ◽  
Kristijonas Genevičius
Keyword(s):  
Charge Carrier ◽  
Carrier Transport ◽  
Bulk Heterojunction ◽  
Charge Carrier Mobility ◽  
Thin Layers ◽  
Charge Carriers ◽  
Disordered Materials ◽  
Charge Carrier Transport ◽  
Bulk Heterojunctions ◽  
The Impact

In this brief review the methods for investigation of charge carrier transport and recombination in thin layers of disordered materials and the obtained results are discussed. The method of charge carrier extraction by linearly increasing voltage (CELIV) is useful for the determination of mobility, bulk conductivity and density of equilibrium charge carriers. The extraction of photogenerated charge carriers (photo-CELIV) allows one to independently investigate relaxation of both the mobility and density of photogenerated charge carriers. The extraction of injected charge carriers (i-CELIV) is effective for the independent investigation of transport peculiarities of both injected holes and electrons in bulk heterojunctions. For the investigation of charge carrier recombination we proposed integral time-of-flight (TOF) and double-injection (DI) current transient methods. The methods allowed us to obtain the following significant results: to determine the reason of the conductivity dependence on electric field strength and temperature in the amorphous and microcrystalline hydrogenated silicon and π-conjugated polymers, the time dependent Langevin recombination, the impact of morphology on charge carrier mobility, the reason of reduced Langevin recombination in RR-PHT (regioregular poly(3-hexylthiophene))/PCBM (1-(3-methoxycarbonyl)propyl-1phenyl-[6,6]-methanofullerene) bulk heterojunction structures – 2D Langevin recombination; and to evaluate that the mobility of holes is predetermined by off-diagonal dispersion in poly-PbO.

scholarly journals Measurement of the Charge Carrier Mobility Distribution in Bulk Heterojunction Solar Cells

2015 ◽  
Vol 27 (34) ◽  
pp. 4989-4996 ◽  
Author(s):  
Jason Seifter ◽  
Yanming Sun ◽  
Hyosung Choi ◽  
Byoung Hoon Lee ◽  
Thanh Luan Nguyen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Bulk Heterojunction ◽  
Charge Carrier Mobility ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

Effect of processing additive on morphology and charge extraction in bulk-heterojunction solar cells

2014 ◽  
Vol 2 (36) ◽  
pp. 15052-15057 ◽  
Author(s):  
Dong Hwan Wang ◽  
Pierre-Olivier Morin ◽  
Chang-Lyoul Lee ◽  
Aung Ko Ko Kyaw ◽  
Mario Leclerc ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Charge Transport ◽  
Carrier Mobility ◽  
Series Resistance ◽  
Bulk Heterojunction ◽  
Charge Carrier Mobility ◽  
Electron Charge ◽  
Charge Generation ◽  
Heterojunction Solar Cells ◽  
Efficient Charge

The BHJ film fabricated with processing additive (DIO) exhibits improved phase-separated morphology and efficient charge generation as evidenced by decreased PL and the associated lifetime. The additive also leads to increased charge transport and decreased series resistance by means of the balanced hole and electron charge carrier mobility.

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