Direct correlation between work function of indium-tin-oxide electrodes and solar cell performance influenced by ultraviolet irradiation and air exposure

2012 ◽  
Vol 14 (34) ◽  
pp. 12014 ◽  
Author(s):  
Yinhua Zhou ◽  
Jae Won Shim ◽  
Canek Fuentes-Hernandez ◽  
Asha Sharma ◽  
Keith A. Knauer ◽  
...  
2017 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Rita Prasetyowati

 Abstrak                 Penelitian ini bertujuan untuk mengetahui pengaruh penyisipan logam tembaga (Cu) dengan berbagai variasi massa terhadap struktur morfologi dan komposisi bahan pada permukaan lapisan titania, absorbansi lapisan titania, resistansi lapisan titania, dan performansi sel surya berbasis titania. Konduktivitas yang dimaksud adalah pengukuran resistansi lapisan. Sedangkan performansi sel surya yang dimaksud adalah tegangan sel surya.                Preparasi lapisan titania-tembaga (TiO2-Cu) menjadi bentuk pasta dilakukan dengan menggunakan metode sol-gel. Pasta titania-tembaga dideposisikan pada elektroda transparan (Indium Tin Oxide) dengan metode doctor blade. Dilakukan lima variasi massa Cu yang disisipkan pada lapisan titania, yaitu 0,050 gram (Sampel 1); 0,075 gram (sampel 2);  0,100 gram (sampel 3); 0,0125 (sampel 4) dan 0,0150 (sampel 5). Masing-masing variasi massa Cu tersebut disisipkan pada 1 gram TiO2. Karakterisasi SEM dan EDS dilakukan pada lapisan titania-tembaga untuk mengetahui struktur morfologi dan komposisi bahan lapisan. Absorbansi lapisan dikarakterisasi dengan menggunakan UV-Visible spektrometer. Pengukuran resistansi lapisan dilakukan dengan menggunakan Jembatan Wheatstone. Sedangkan performansi sel surya dilakukan dengan mengukur tegangan sel surya.Kata kunci : titania, tembaga, morfologi permukaan, absorbansi, resistansi, sel surya Effect of Cu Insertion With Variation Of Mass on Titania Active Layer To Morphological Structure, Resistance, And Solar Cells Performance                                             Abstract            This study aims to determine the effect of insertion of copper (Cu) with a variety of mass to structure morphology and composition of surface layer of titania, absorbance of titania, resistance of titania and solar cell performance based on titania.. Solar cell performance is characterized from voltage of solar cell.                Preparation of titania-copper layer (TiO2-Cu) to form a paste was made using a sol-gel method. Pasta titania-copper deposited on a transparent electrode (Indium Tin Oxide) with a doctor blade method. There were five variations of Cu mass pasted on layers of titania, namely 0,050 grams (Sample 1); 0,075 grams (sample 2); 0,100 grams (3 samples); 0.0125 (sample 4) and 0.0150 (sample 5). Each variation of the mass of Cu is inserted in one gram of TiO2. SEM and EDS characterization performed on layers of titania-copper to know the structure morphology and composition of the titania-copper. Layer absorbance was characterized using UV-Visible spectrometer. Resistance of titania was measured using a Wheatstone bridge. The performance of solar cells measured by measuring the voltage of the solar cell.                Keywords: titania, copper, surface morphology, absorbance, resistance, solar cells


Science ◽  
2011 ◽  
Vol 332 (6032) ◽  
pp. 944-947 ◽  
Author(s):  
M. G. Helander ◽  
Z. B. Wang ◽  
J. Qiu ◽  
M. T. Greiner ◽  
D. P. Puzzo ◽  
...  

2013 ◽  
Vol 13 (5) ◽  
pp. 836-840 ◽  
Author(s):  
Seunghun Lee ◽  
Sung Ju Tark ◽  
Chan Seok Kim ◽  
Dae Young Jeong ◽  
Jeong Chul Lee ◽  
...  

2001 ◽  
Vol 708 ◽  
Author(s):  
Chimed Ganzorig ◽  
Masamichi Fujihira

ABSTRACTIndium-tin-oxide (ITO) is the most widely used material as a transparent electrode due to its excellent transparency and high conductivity. The devices based on bare ITO, however, exhibited inefficient hole injection due to insufficient high work function and required high drive voltages. Thus, various surface treatments of ITO have been attempted to change the work function of ITO in order to reduce the hole injection barrier height. Electroluminescent (EL) characteristics of devices were improved dramatically using ITO chemically modified with H-, Cl-, and CF3-terminated benzoyl chlorides. By the use of reactive -COCl groups, ITO surfaces were modified quickly and the work function of the modified ITO was changed widely depending upon the permanent dipole moments introduced in p-position of benzoyl chloride. We also compared the performance of the EL devices with ITO modified with different binding groups (-SO2Cl, -COCl, and -PO2Cl2) of p-chlorobenzene derivatives. Finally, we examined the correlation between the change in the work function and the performance of the EL devices by the chemical modification and found that the enormous increase in ITO work function up to 0.9 eV is possible using phenylphosphoryl dichloride with a CF3-terminal group in p-position.


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