scholarly journals Antisolvent Treatment: Elucidating the Coordination of Diethyl Sulfide Molecules in Copper(I) Thiocyanate (CuSCN) Thin Films and Improving Hole Transport by Antisolvent Treatment (Adv. Funct. Mater. 36/2020)

2020 ◽  
Vol 30 (36) ◽  
pp. 2070240
Author(s):  
Pimpisut Worakajit ◽  
Fumiya Hamada ◽  
Debashis Sahu ◽  
Pinit Kidkhunthod ◽  
Taweesak Sudyoadsuk ◽  
...  
2020 ◽  
Vol 30 (36) ◽  
pp. 2002355
Author(s):  
Pimpisut Worakajit ◽  
Fumiya Hamada ◽  
Debashis Sahu ◽  
Pinit Kidkhunthod ◽  
Taweesak Sudyoadsuk ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (36) ◽  
pp. 22199-22205
Author(s):  
Rachel L. Wilson ◽  
Thomas J. Macdonald ◽  
Chieh-Ting Lin ◽  
Shengda Xu ◽  
Alaric Taylor ◽  
...  

We describe CVD of nickel oxide (NiO) thin films using a new precursor [Ni(dmamp′)2], synthesised using a readily commercially available dialkylaminoalkoxide ligand (dmamp′), which is applied to synthesis of a hole transport-electron blocking layer.


Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 962 ◽  
Author(s):  
Zahoor Ul Islam ◽  
Muhammad Tahir ◽  
Waqar Adil Syed ◽  
Fakhra Aziz ◽  
Fazal Wahab ◽  
...  

Herein, we report thin films’ characterizations and photovoltaic properties of an organic semiconductor zinc phthalocyanine (ZnPc). To study the former, a 100 nm thick film of ZnPc is thermally deposited on quartz glass by using vacuum thermal evaporator at 1.5 × 10−6 mbar. Surface features of the ZnPc film are studied by using scanning electron microscope (SEM) with in situ energy dispersive x-ray spectroscopy (EDS) analysis and atomic force microscope (AFM) which reveal uniform film growth, grain sizes and shapes with slight random distribution of the grains. Ultraviolet-visible (UV-vis) and Fourier Transform Infrared (FTIR) spectroscopies are carried out of the ZnPc thin films to measure its optical bandgap (1.55 eV and 3.08 eV) as well as to study chemical composition and bond-dynamics. To explore photovoltaic properties of ZnPc, an Ag/ZnPc/PEDOT:PSS/ITO cell is fabricated by spin coating a 20 nm thick film of hole transport layer (HTL)—poly-(3,4-ethylenedioxythiophene) poly(styrene sulfonic acid) (PEDOT:PSS)—on indium tin oxide (ITO) substrate followed by thermal evaporation of a 100 nm layer of ZnPc and 50 nm silver (Ag) electrode. Current-voltage (I-V) properties of the fabricated device are measured in dark as well as under illumination at standard testing conditions (STC), i.e., 300 K, 100 mW/cm2 and 1.5 AM global by using solar simulator. The key device parameters such as ideality factor (n), barrier height ( ϕ b ), junction/interfacial resistance (Rs) and forward current rectification of the device are measured in the dark which exhibit the formation of depletion region. The Ag/ZnPc/PEDOT:PSS/ITO device demonstrates good photovoltaic characteristics by offering 0.48 fill factor (FF) and 1.28 ± 0.05% power conversion efficiency (PCE), η.


2015 ◽  
Vol 4 (3) ◽  
pp. Q26-Q30 ◽  
Author(s):  
Min Liao ◽  
Zewen Xiao ◽  
Fan-Yong Ran ◽  
Hideya Kumomi ◽  
Toshio Kamiya ◽  
...  

2007 ◽  
Vol 90 (2) ◽  
pp. 023501 ◽  
Author(s):  
Pankaj Kumar ◽  
Suresh Chand ◽  
S. Dwivedi ◽  
M. N. Kamalasanan

2013 ◽  
Vol 667 ◽  
pp. 317-323 ◽  
Author(s):  
Muhamad Nur Amalina ◽  
Mohamad Rusop

The improvement of solid-state dye sensitized solar cells requires identification and understanding of hole transport material properties at various deposition process that limit the energy conversion efficiency. A well-studied of this hole collectors properties, a high efficiency ss-DSSC is highly achievable. In this research work, the copper (I) iodide (CuI) had been deposited by spin coating and mist-atomization technique. The thin films characteristics of surface morphology and electrical properties and its effect to the photovoltaic performance were investigated. The thin films morphology examined by FESEM shows smaller CuI crystal size deposited by spin coating (S1) of ~30nm. Even though, smaller particle size of hole conductor is desirable in order to achieve high pore penetration, the thin film thickness and the electrical resistivity are also essential. The CuI thin films deposited by mist-atomization (M1) shows a low resistivity of 1.77 x 10-1 Ωcm which will greatly affect the device performance. The photovoltaic performance of ss-DSSC at different method CuI deposition shows the highest efficiency of 1.05% for sample (M1) while the ss-DSSC fabricated with S1 sample shows the lowest conversion efficiency of 0.02%. The appropriate crystals size of CuI, film thickness and the electrical resistivity greatly contributed to the high filling fraction of the porous TiO2 layer and hence the cells performance.


2001 ◽  
Vol 707 ◽  
Author(s):  
H. Okumoto ◽  
T. Yatabe ◽  
A. Richter ◽  
M. Shimomura ◽  
A. Kaito ◽  
...  

ABSTRACTSelf-organized oligosilane thin films possess molecular orientation normal to substrates with multilayered structure. This unique order of σ-conjugated molecules results in good hole transport properties. In the present work, carrier transport properties at low temperature are studied for 1,10-diethyldecamethylsilane polycrystalline films. Even at a temperature as low as 173 K, a time-of-flight transient photocurrent waveform showed a clear plateau and a sharp decay, whose shape is similar to that at room temperature. Their hole mobility followed Arrhe-nius type temperature dependence with a small activation energy of 0.09 eV. The hole mobility of 6.3×10-5cm-2/Vs at 193 K was more than 2 orders of magnitude higher than that of typical polysilanes, which inevitably contain disordered structures hindering smooth carrier transport.


2001 ◽  
Vol 64 (11) ◽  
Author(s):  
Tom J. Savenije ◽  
Albert Goossens
Keyword(s):  

2008 ◽  
Vol 92 (26) ◽  
pp. 263504 ◽  
Author(s):  
Kusum Kumari ◽  
Suresh Chand ◽  
Pankaj Kumar ◽  
Shailesh N. Sharma ◽  
V. D. Vankar ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document