scholarly journals Application of A Novel, Non-Doped, Organic Hole-Transport Layer into Single-Walled Carbon Nanotube/Silicon Heterojunction Solar Cells

2019 ◽  
Vol 9 (21) ◽  
pp. 4721 ◽  
Author(s):  
Tom Grace ◽  
Hong Duc Pham ◽  
Christopher T. Gibson ◽  
Joseph G. Shapter ◽  
Prashant Sonar

The search for novel solar cell designs as an alternative to standard silicon solar cells is important for the future of renewable energy production. One such alternative design is the carbon nanotube/silicon (CNT/Si) heterojunction solar device. In order to improve the performance of large area CNT/Si heterojunction solar cells, a novel organic material, 4,10-bis(bis(4-methoxyphenyl)amino)naptho[7,8,1,2,3-nopqr]tetraphene-6,12-dione (DPA-ANT-DPA (shortened to DAD)), was added as an interlayer between the CNT film and the silicon surface. The interlayer was examined with SEM and AFM imaging to determine an optimal thickness for solar cell performance. The DAD was shown to improve the device performance with the efficiency of large area devices improving from 2.89% ± 0.40% to 3.34% ± 0.10%.

2017 ◽  
Vol 131 (3) ◽  
pp. 474-477 ◽  
Author(s):  
F. Çolak ◽  
Z. Dalkılıç ◽  
A. Tabatabaei ◽  
R. Atlıbatur ◽  
Ü. Çolak ◽  
...  

2021 ◽  
Author(s):  
F Ayala-Mato ◽  
O Vigil-Galán ◽  
Maykel Courel ◽  
M. M. Nicolás-Marín

Abstract Antimony Sulfide (Sb2Se3) Solar Cells are considered a promising emerging photovoltaic devices technology. However, the best reported experimental efficiency (9.2%) is well below the theoretical limit of 30%. In this research is demonstrated, by numerical simulation, that using different buffer or electron transport layers (ETL) and device structures (n-p or n-i-p) can significantly increase the solar cell performance. The study is based on two underlying considerations: the use of inorganic materials to facilitate the manufacturing process and the analysis of the simulation parameters that adjust to the experimental conditions in which the cells can be processed. In the n-p structures, the use of single layers and bilayers as ETL was evaluated and the possible mechanism that explain the electrical parameters of the solar cell were discussed. Especial attention was made in the role of interfacial state density and band alignment in the ETL/Sb2Se3 interface. In addition, the n-i-p structure was studied by adding a hole transport layer (HTL). An improvement in open circuit voltage (Voc) is observed compared with n-p structure. Finally, the behavior of Voc and efficiency vs thickness of the ETL and Sb2Se3 layers was analyzed. The results show that using alternative ETLs a significant improve in Voc and efficiency could be achieved for n-p and n-i-p structures. After thickness optimization and taking account a moderate interface defect density, values of Voc and efficiency higher than 600 mV and 15 % were respectively obtained.


2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Jeongmin Lim ◽  
Seong Young Kong ◽  
Yong Ju Yun

Inorganic-organic mesoscopic solar cells become a promising alternative for conventional solar cells. We describe a CH3NH3PbI3 perovskite-sensitized solid-state solar cells with the use of different polymer hole transport materials such as 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene (spiro-OMeTAD), poly(3-hexylthiophene-2,5-diyl) (P3HT), and poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7). The device with a spiro-OMeTAD-based hole transport layer showed the highest efficiency of 6.9%. Interestingly, the PTB7 polymer, which is considered an electron donor material, showed dominant hole transport behaviors in the perovskite solar cell. A 200 nm thin layer of PTB7 showed comparatively good efficiency (5.5%) value to the conventional spiro-OMeTAD-based device.


2018 ◽  
Vol 67 ◽  
pp. 01021 ◽  
Author(s):  
Istighfari Dzikri ◽  
Michael Hariadi ◽  
Retno Wigajatri Purnamaningsih ◽  
Nji Raden Poespawati

Research in solar cells is needed to maximize Indonesia’s vast solar potential that can reach up to 207.898 MW with an average radiation of 4.8 kWh/m2/day. Organometallic perovskite solar cells (PSCs) have gained immense attention due to their rapid increase in efficiency and compatibility with low-cost fabrication methods. Understanding the role of hole transport layer is very important to obtain highly efficient PSCs. In this work, we studied the effect of Hole Transport Layer (HTL) to the performance of perovskite solar cell. The devices with HTL exhibit substantial increase in power conversion efficiency, open circuit voltage and short circuit current compared to the device without HTL. The best performing device is PSC with CuSCN as HTL layer, namely Voc of 0.24, Isc of 1.79 mA, 0.27 FF and efficiency of 0.09%.


2020 ◽  
Author(s):  
Meenakshi Pegu ◽  
Laura Calio ◽  
Mehrad Ahmadpour ◽  
Horst-Günter Rubahn ◽  
Samrana Kazim ◽  
...  

<p>Semi-transparent perovskite solar cells have the competitive edge of being employed for building integrated photovoltaics due to their aesthetic benefits as light harvesting windows / facades. Perovskites have received considerable attention in recent years as a thin film photovoltaic alternative, that can also be tweaked for its transparency, evolving from potentially high bandgaps that are suited for semi-transparent solar cell fabrication. Due to the existing trade of between the efficiency and transparency of a perovskite solar cell, tuning the band gap can address this by making a bridge between the aforementioned parameters. We report our findings on the use of a wide-bandgap perovskite MAPbBr<sub>3</sub>, with a rational energetic level hole transport materials based on polycyclic aromatic hydrocarbon molecules that can be a promising alternative class of p-type material. In the present work, DBP (Dibenzo{[f,f' ]-4,4',7,7'-tetraphenyl}diindeno[1,2,3-cd :1',2',3'-lm]perylene, was evaluated with high band gap as well as with (FAPbI<sub>3</sub>)<sub>0.85</sub>(MAPbBr<sub>3</sub>)<sub>0.15 </sub>perovskites<sub> </sub>for the fabrication of solar cell. DBP based solar cells yielded competitive power conversion efficiencies as compared to classical HTMs.</p>


2019 ◽  
Vol 288 ◽  
pp. 113-118 ◽  
Author(s):  
Hong Lian ◽  
Ning Jun ◽  
Altan Bolag ◽  
Alata Hexig ◽  
Naren Gerile ◽  
...  

We have investigated the effect of diluting treatment of poly (3,4-ethylenedioxythiophen e):poly (styrene sulfonate)(PEDOT:PSS) solution on the PEDOT:PSS films and the organic polymer solar cells based on poly [4,8-bis (5-(2-ethylhexyl) thiophen-2-yl) benzo [1,2-b;4,5-b0] dithiophene-co-3-fluorothieno [3,4-b] thiophene-2-carboxylate](PTB7-Th):[6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) using PEDOT:PSS polymer as the hole transport layer. The diluted PEDOT:PSS solution by water with 1:1.5 volume ratio was used to fabricate the hole transport layer in the organic solar cell, the fill factor and the shunt resistance of the solar cell can be significantly enhanced compared with the control cell, up to 64% and 949.03Ω·cm2, respectively.


2015 ◽  
Vol 3 (45) ◽  
pp. 11886-11892 ◽  
Author(s):  
Neeraj Chaudhary ◽  
Rajiv Chaudhary ◽  
J. P. Kesari ◽  
Asit Patra ◽  
Suresh Chand

Here, we report copper(i)thiocyanate (CuSCN) as an efficient and solution-processable hole transport layer (HTL) in bulk heterojunction solar cells.


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