Manipulating interfaces in a hybrid solar cell by in situ photosensitizer polymerization and sequential hydrophilicity/hydrophobicity control for enhanced conversion efficiency

2008 ◽  
Vol 92 (19) ◽  
pp. 193307 ◽  
Author(s):  
Wonjoo Lee ◽  
Seunghoon Shin ◽  
Sung-Hwan Han ◽  
Byung Won Cho
2015 ◽  
Vol 70 ◽  
pp. 579-583 ◽  
Author(s):  
Yange Zhang ◽  
Pinjiang Li ◽  
Xiaoyun Xu ◽  
Min Wang ◽  
Jinfeng Shen ◽  
...  

2014 ◽  
Vol 03 (03) ◽  
pp. 106-113 ◽  
Author(s):  
Ramil K. Bhardwaj ◽  
Vishal Bharti ◽  
Abhishek Sharma ◽  
Dibyajyoti Mohanty ◽  
Vikash Agrawal ◽  
...  

2016 ◽  
Vol 846 ◽  
pp. 256-263
Author(s):  
Hasiah Salleh ◽  
Nik Aziz Nik Ali ◽  
Azhar Mohd Sinin ◽  
Engku Abdul Ghapur Engku Ali ◽  
Muhammad Afiq Firdaus

A single hybrid solar cell (SHSC) which consist of zinc oxide (ZnO) micro-rod and Poly (3-dodecylthiophene)(P3DDT) materials with nature dye from Melastomamalabathricum fruit (Mm) were fabricated to determine it electrical properties and power conversion efficiency (PCE). The ZnO microrod was growth by thermal method. P3DT was synthesis by oxidation polymerization method. Nature dye was extracted from Mm fruit in purplecolor.The fabrication of a SHSC started with growth ZnO microrodon the Indium Tin Oxide (ITO) in thin filmform, followed with P3DT layers and finally layered with Mm in 5 layers and 10 layers respectively.The SHSC wascharacterized the electrical conductivity and PCE also compared under dark condition and various light intensity. The conductivity of the samples is increase within the increment of light intensity and the efficiency of SHSC increase within the increment of layer of Mm. The highest electrical conductivity was for 10 layers of dye which is 2.678 + 0.002 Scm-1. The power conversion efficiency (PCE) of the ITO/ZnO/P3DDT/10 layers dye achieved was the highest which is 0.0011% under radiation of 200 Wm-2 intensity of light. As a conclusion, it can say that the amount of Mm can affect the performance of hybrid solar cell, where the dye is increased, the electrical conductivity and the PCE also increase. Thus, the Mm is a good dye and can be potential to apply in the solar cell.


2019 ◽  
Vol 8 (4) ◽  
pp. 10142-10147

Solar energy is one in all few sources to renewable power and it is considerably critical in our each day lifestyles usage thus resulted to ensure the practicality and usefulness of the devices which regularly used to capture and manipulate solar energy. In this work, studies the effect of conjugated chlorophyll (iCHLO) on power conversion efficiency with relation of iCHLO where optical and electrical properties were investigated. These hybrid solar cells consist of combination of organic (Poly (3, 4-ethylenedioxythiophene): poly (styrenesulfonate) and iCHLO) and inorganic (Titanium Dioxide, TiO2) materials. These hybrid solar cells were fabricated bilayer of ITO/TiO2/PEDOT: PSS/iCHLO/Al. Chlorophyll compound (CHLO) was extracted from the Pandanus amaryllifolius leaves. CHLO undergoes conjugate process by oxidation polymerization using Ferric Chloride (FeCl3) as catalyst. Different percentage of FeCl3 was varied by 5%, 10% and 15% of CHLO molecular weight. Result shows that UV-Vis absorption spectra of CHLO was absorbed in the range of 400 nm – 600 nm (CHLO-PA) and 240 nm - 360 nm (iCHLO-PA). The highest power conversion efficiency (PCE) was obtained at 1.33% and electrical conductivity is 0.135 Scm1 for ITO/TiO2/PEDOT: PSS/iCHLO-PA 10% hybrid solar cell.


2014 ◽  
Vol 17 (3) ◽  
pp. 52-61
Author(s):  
Top Khac Le ◽  
Son Hoang Cao Tran ◽  
Nhan Thuc Chi Ha ◽  
Thang Bach Phan ◽  
Hieu Van Le ◽  
...  

In this study, we investigated the effect of annealing time and morphology of ZnO nanorods on the conversion efficiency of hybrid solar cell. ZnO nanorods were synthesized by two-step electrochemically steady stream method. The result showed the uniform growth of nanorods which have a good orientation in demonstrating the hexagonal structure with an average diameter from 30nm to 50nm and average length from 200nm to 250nm. P3HT : PCBM (1:1) conductive polymer blend was also fabricated by spin coating method at 400 rpm and incubated during 10 minutes, 20 minutes, 30 minutes and 60 minutes in nitrogen environment at 1300C. UV-Vis spectrashowed the high photon absorption in the visible light wavelengths with three characteristic peaks at of 515nm, 555nm and 610 nm. With the annealing time of 30 minutes, the highest absorption was reached with the increasing crystallization ofP3HT: PCBM film and thereby the conversion efficiency of the cell was enhanced. Especially, the presence of ZnO nanorods in the system using and without using PEDOT: PSS has showed significantly the enhancement of conversion efficiency of solar cells as compared to the system cell using ZnO film. And conversion efficiency of our device has increased from 0.92 % to 1.23 % (for system without PEDOT: PSS) and from 1.38 % to 1.43 % (for system with PEDOT : PSS layer).


2016 ◽  
Vol 27 (18) ◽  
pp. 185401 ◽  
Author(s):  
Adinath M Funde ◽  
Albert G Nasibulin ◽  
Hashmi Gufran Syed ◽  
Anton S Anisimov ◽  
Alexey Tsapenko ◽  
...  

2013 ◽  
Vol 34 (3) ◽  
pp. 345-347 ◽  
Author(s):  
Dong Liu ◽  
Yunfang Zhang ◽  
Xiao Fang ◽  
Fute Zhang ◽  
Tao Song ◽  
...  

Author(s):  
C. Y. Lam ◽  
S. Q. Shi ◽  
J. Lu ◽  
P. K. L. Chan

The degradation of silicon nanostructure / poly(3,4-ethylenedioxylthiophene : poly(styrenesulphonic acid) (SiNS/PEDOT:PSS) hybrid solar cell due to the moisture is investigated with an environmental chamber. The unencapsulated devices were tested under different relative humidity (RH) varied from (15% to 100%). Under different RH, the devices show various degradation trends. After 3hrs of storage under 100% RH, the average device power conversion efficiency (PCE) drops from 6.52% to 1.27%. While the device is stored under 15% RH, the averaged PCE just drop from 6.40% to 5.49% and the device at 60% RH degrades from 5.97% to 3.12%. To understand the cause of the device degradation, we compare the ITO conductivity and apply tunneling electron microscopy (TEM) to study the growth of the silicon dioxide layer on the silicon nanostructures. We confirmed that the major cause of the PCE drop in the current devices are due to the decrease of the PEDOT:PSS conductivity and the increase of the interface resistances. By re-depositing the PEDOT:PSS layer onto the degraded device and recycling the Si (and fresh ITO), we demonstrated that the efficiency of the device can be partially recovered (to fully recovered). The current work not only highlighted the importance of the humidity control in these SiNS/PEDOT:PSS hybrid solar cells, but also identified the major causes of the device degradation. The observation has been re-confirmed by recovering the PCE of the degraded device with a fresh PEDOT:PSS layer and a fresh ITO.


2020 ◽  
pp. 114-119

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.


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