Equivalent Circuit Modification for Organic Solar Cells

Hossain, Nazmul; Das, Sayantan; Alford, Terry

doi:10.4236/cs.2015.66016

Cited by 6 publications

(4 citation statements)

References 34 publications

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“…Such “near‐triangular” area under the curve in the fourth quadrant have also been observed by Li et al and Avellanda et al in CdS/p‐SnS solar cells. This shape is explained due to the lowering in value of the shunt resistance ( R sh ) or in other words increased leakage current through the solar cells junction …”

Section: Resultssupporting

confidence: 85%

Mitigating Reasons for the Poor Performance of n‐CdS/p‐SnS Solar Cells

Gupta

Kant²,

Palakkandy

2018

Global Challenges

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In the present work, indium tin oxide (ITO)/n‐CdS/p‐SnS/Au structured solar cells are fabricated with best conversion efficiency of 0.005%. A detailed investigation is made into the cause of the poor conversion efficiency and the cause is narrowed down to defects in p‐SnS which effect the junction and the neutral region of the cell. The junctions performance is quantified using the ideality factor which is found to be related to the band misalignment. The paper also investigates into literature and discusses efforts made to overcome the problems with this structure.

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Section: Resultssupporting

confidence: 85%

Mitigating Reasons for the Poor Performance of n‐CdS/p‐SnS Solar Cells

Gupta

Kant²,

Palakkandy

2018

Global Challenges

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“…Incorporation of the AgOx interfacial layer shows an increase in fill factor (by 33%) and power conversion efficiency (by 28%). The interfacial modification also results in improved shunt resistances suggesting lesser charge recombination due to cascading hole transport process [23].…”

Section: Introductionmentioning

confidence: 99%

“…In a previous study, we proposed a two diode model with an extra resistance connected in series with the diode based on the device behavior with the change of series and shunt resistance [23]. We used the model to describe the electrical characteristics of PCBM and P3HT based organic solar cell with an added interfacial layer of AgOx in between PEDOT:PSS and ITO.…”

Section: Equivalent Circuit Diagrammentioning

confidence: 99%

An Approach to Equivalent Circuit Modelling of Inverted Organic Solar Cells

Hossain¹,

Das²,

Alford³

2016

Self Cite

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A low temperature sol-gel process was used to fabricate zinc-oxide and yttrium-doped zinc oxide layers. These zinc-oxide and yttrium-doped ZnO films were used as electron transport layers in conjunction with P3HT and PC16BM type solar cells. It was demonstrated that annealing and doping of electron transport layer influenced the overall organic solar cells performance. Anneals of ~ 150˚C provided the highest device performance. Compared to the undoped zinc oxide, the device with yttrium doped zinc oxide layers showed improved efficiency by about 30%. Furthermore an equivalent circuit was proposed to understand the connection between the electrical and optical characteristics of the device. Comparisons between the simulated and experimental current-voltage (I-V) curves displayed only a 1.2% variation between the curves. Clearly, our experimental and simulated studies provide new insight on the equivalent circuit models for inverted organic solar cells and further improvement on photovoltaic efficiency.

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“…Standard solar PV Modules have open circuit voltage in the range of 18 to 21.6 Volts, [5] which is much higher than the safe charging voltage of 14.2 volts as recommended by the battery manufacturers [2]. A charge controller is often used to limit the charging voltage to 14.2 V and thus protects the battery from any damage.…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies on Standard and Modified Pv Module

Bhore¹,

Thombre²,

Walke³

2017

IJAEFEA

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A standard Solar PV Module has open circuit voltage V oc of around 21.6 Volts and V max around 17.3 Volts which is much higher than the required charging level of around 14.2 Volts for a 12 Volts battery. Often a charge controller is used for charging a battery using Solar PV Modules. The charge controller protects the battery from all possible damages. In the present work, Solar PV Module is modified and manufactured for V oc of 17.3 Volts and V max 14.3 Volts, thereby eliminating the need of a charge controller. The panel operating voltage does not cross the upper limit of 14.3 Volts and thus does not damage the battery. Also the power gained from the modified PV module is higher than the standard PV module of the same power rating. This paper describes the results of the experimentation carried out to study and compare the performance characteristics of standard and modified Solar PV Modules in terms of I-V and P-V characteristics. A new term "module utilization factor"-defined as the ratio "useful power to the total power" produced by the panel, is suggested. It is a measure of effective power rating of the solar PV module when used in a 12 V battery system with charge controller.

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Equivalent Circuit Modification for Organic Solar Cells

Cited by 6 publications

References 34 publications

Mitigating Reasons for the Poor Performance of n‐CdS/p‐SnS Solar Cells

Mitigating Reasons for the Poor Performance of n‐CdS/p‐SnS Solar Cells

An Approach to Equivalent Circuit Modelling of Inverted Organic Solar Cells

Experimental Studies on Standard and Modified Pv Module

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