scholarly journals Influence of doped charge transport layers on efficient perovskite solar cells

2018 ◽  
Vol 2 (11) ◽  
pp. 2429-2434 ◽  
Author(s):  
Jorge Avila ◽  
Lidon Gil-Escrig ◽  
Pablo P. Boix ◽  
Michele Sessolo ◽  
Steve Albrecht ◽  
...  

A generic solar cell structure using undoped charge extraction layer is presented, that lead to efficient and rather stable solar cells.

2017 ◽  
Vol 8 (6) ◽  
pp. 549-522
Author(s):  
Vytautas Makarskas ◽  
Mindaugas Jurevičius ◽  
Artūras Kilikevičius

Solar cells are one of the most popular renewable energy generation technologies, because they are reliable, low operating and maintenance costs, to conclude without any moving parts and is a boundless source of energy. In any solar cell can avoid mechanical vibrations, which may produce the solar cell glass, damage to the inner structure. In order to determine the influence of mechanical vibrations of the solar cell structure was carried out theoretical and experimental modal analysis. The study found dangerous solar cell frequencies and their deformation and optimize the method of attachment which provides a better solar cell stability. Saulės elementai – vieni populiariausių atsinaujinančių energijos gavybos technologijų, nes jie patikimi, jų mažos eksploatavimo ir priežiūros išlaidos, šie elementai sudaryti be jokių judančių dalių ir yra beribis energijos šaltinis. Bet saulės elementas neišvengia mechaninių virpesių, kurie gali įskelti saulės elemento stiklą, pažeisti vidinę konstrukciją. Siekiant nustatyti mechaninių virpesių įtaką saulės elemento konstrukcijai, buvo atliktos teorinės ir eksperimentinės modalinės analizės. Tyrime buvo rasti pavojingi saulės elemento dažniai ir jų deformacijos, rastas optimalus tvirtinimo būdas, kuris suteikia geresnį saulės elemento stabilumą.


Utilization of Tin Halide as an absorber in Perovskite solar cells is immensely recognized as a substitute of lead halide absorber because of lead material’s toxicity. Also, Tin halide based Perovskites possess a potential for higher quantum efficiency because of their enhanced light absorption capability due to the wide-ranging absorption spectrum in the visible region with a comparatively lower bandgap of 1.3 eV than lead-based Perovskites. In the present work, glass/ transparent conductive oxide (TCO)/ titanium dioxide (buffer)/ tin halide Perovskite (Absorber)/ cuprous thiocyanate (HTM)/ Metal back solar cell structure has been designed and simulated by SCAPS software which yields Power Conversion Efficiency (PCE) of 28.32% and Fill Factor (FF) of 85.17%. The effect of total defect density, thickness, Valance Band Effective Density of States (VBEDS) and Conduction Band Effective Density of States (CBEDS) for an absorber layer has been analyzed. It has been observed that VBEDS variation has achieved PCE and FF to a significant extent i.e. up to 32.47% PCE and 85.86% FF


RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12289-12296 ◽  
Author(s):  
Zezhu Jin ◽  
Yanru Guo ◽  
Shuai Yuan ◽  
Jia-Shang Zhao ◽  
Xiao-Min Liang ◽  
...  

The NiOx layer modified with NiOx nanoparticles obtains surface property optimization and energy level modulation, thus improving charge transport and device performance.


Nanomaterials ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 121 ◽  
Author(s):  
Lung-Chien Chen ◽  
Ching-Ho Tien ◽  
Zong-Liang Tseng ◽  
Jun-Hao Ruan

We describe a method to enhance power conversion efficiency (PCE) of MAPbI3 perovskite solar cell by inserting a FAPbX3 perovskite quantum dots (QD-FAPbX3) layer. The MAPbI3 and QD-FAPbX3 layers were prepared using a simple, rapid spin-coating method in a nitrogen-filled glove box. The solar cell structure consists of ITO/PEDOT:PSS/MAPbI3/QD-FAPbX3/C60/Ag, where PEDOT:PSS, MAPbI3, QD-FAPbX3, and C60 were used as the hole transport layer, light-absorbing layer, absorption enhance layer, and electron transport layer, respectively. The MAPbI3/QD-FAPbX3 solar cells exhibit a PCE of 7.59%, an open circuit voltage (Voc) of 0.9 V, a short-circuit current density (Jsc) of 17.4 mA/cm2, and a fill factor (FF) of 48.6%, respectively.


2020 ◽  
Vol 20 (6) ◽  
pp. 3939-3942
Author(s):  
Nikhil Deep Gupta

The paper discusses and compares the Lambertian limits for light trapping (LT) in GaAs active layer based thin film solar cells as described by different mathematical theories and expressions. The Lambertian limits for thin film GaAs solar cell provide the maximum efficiency that can be achieved through LT structures and also indicate the advantage that these structure can provide for the design of GaAs thin film solar cell structure. The purpose to discuss difference Lambertian limit expressions is to understand and predict, which limiting benchmark value is more suited for nano LT structures based GaAs active material solar cells, considering GaAs material properties. The paper also compares these calculated limiting values with different nano LT structures including photonic crystal structures based designs proposed by the author. The aim is to check how much close a particular proposed structure is to the Lambertian values, so that we can predict that which is more suitable design to get best efficiency out of the single junction GaAs material based structure. The paper discussed the three Lambertian theories including that of Yablonovitch, Green and Schuster.


Nanoscale ◽  
2018 ◽  
Vol 10 (13) ◽  
pp. 6155-6158 ◽  
Author(s):  
Núria F. Montcada ◽  
Maria Méndez ◽  
Kyung Taek Cho ◽  
Mohammad Khaja Nazeeruddin ◽  
Emilio Palomares

We describe how the use of photo-induced charge extraction technique can be useful to study and understand the relationship between perovskite composition, ion reorganization process and solar cell efficiency.


2019 ◽  
Vol 33 (24) ◽  
pp. 1950289 ◽  
Author(s):  
Khoulud Kh. AbuShaar ◽  
Mohammed M. Shabat ◽  
Dena M. El-Amassi ◽  
Daniel M. Schaadt

In this paper, photovoltaics (PV)- or solar cells based on two types of nanoparticles have been investigated. The suggested four-layer solar cell model consists of metallic nanoparticle (Ag–Au) layers that are Si-based and covered by SiN. The transmission and reflection of the incident light on the structure model have been computed for different physical parameters of the structure. Higher transmission and lower reflections have been obtained leading to higher efficiency of the solar cells. The matrix model is used, and the numerical results obtained by MAPLE Software Program. The obtained results confirm that the nanoparticle solar cell structure can effectively enhance the efficiency of such structure model.


1996 ◽  
Vol 426 ◽  
Author(s):  
Martin A. Green ◽  
Alistair B. Sproul ◽  
Tom Puzzer ◽  
Guang Fu Zheng ◽  
Paul Basore ◽  
...  

AbstractA new silicon parallel multilayer solar cell structure has recently been reported which can give high solar cell energy conversion efficiency from low quality silicon material. Advantages of this structure are described as is recent characterization work which compares the properties of grain boundaries in experimental devices to those predicted by earlier calculations.


2017 ◽  
Vol 5 (19) ◽  
pp. 9182-9189 ◽  
Author(s):  
Gerard Masmitjà ◽  
Luís G. Gerling ◽  
Pablo Ortega ◽  
Joaquim Puigdollers ◽  
Isidro Martín ◽  
...  

Ni/V2Ox stacks applied to an interdigitated back-contacted n-type c-Si solar cell structure are explored, reaching cell efficiencies up to 19.7%.


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