A gold nanodot array imprinting process based on solid-state dewetting for efficient oxide-free photovoltaic devices

2020 ◽  
Vol 117 (17) ◽  
pp. 171601
Author(s):  
Jae Sang Cho ◽  
Woongsik Jang ◽  
Keum Hwan Park ◽  
Dong Hwan Wang
2006 ◽  
Vol 6 (5) ◽  
pp. 969-973 ◽  
Author(s):  
Jung Yong Kim ◽  
In Jae Chung ◽  
Jai Kyeong Kim ◽  
Jae-Woong Yu

2014 ◽  
Vol 70 (a1) ◽  
pp. C508-C508
Author(s):  
Ishverbhai Patel ◽  
Sneha Solanki

Bismuth sulfide preparation and its x-ray diffraction studies are reported in this paper. The author have synthesized Bi2Sx (x = 3.15, 3.45) compound material with different sulfur content by conventional high temperature solid state solvothermal reaction of bismuth and sulfur which conforms that the (121) preferred orientation with crystallite size ~30 nm and splitting of peaks due to orthorhombic structure matches well with the standard data and demonstrate good crystalline quality and structural homogeneity of synthesized powder.This paper also describes the synthesis and x-ray diffraction studies of bismuth sulfide powder via versatile precipitation technique . Bismuth sulfide powder was synthesized using thiourea and sodium dodecyl sulfate or in absence of any surfactant maintained at 800C for 12 h keeping pH of solution constant at 1.4. Synthesized powder was characterized by x-ray diffraction technique which indicates that surfactants play major role in synthesis of bismuth sulfide that conforms the crystallite size ~35 nm. The employed solid state solvothermal technique played an important role to progress the homogeneous reaction and preparation of pure and fine bismuth sulfide powder. The possible application of this material in photovoltaic devices is suggested.


Author(s):  
Keval K. Sonigara ◽  
Jayraj V. Vaghasiya ◽  
Jyoti Prasad ◽  
Hiren K. Machhi ◽  
Mohammad Shaad Ansari ◽  
...  

Photoresponsive organic ionic plastic crystals redox mediators, namely OIPC-I/OIPC-Br contributing photocurrent from the phenoxazine moiety to augment the efficiency of SK4 sensitizer by ∼40% compared to conventional electrolyte.


2008 ◽  
Vol 92 (7) ◽  
pp. 772-784 ◽  
Author(s):  
Morten Bjerring ◽  
Julie S. Nielsen ◽  
Ana Siu ◽  
Niels Chr. Nielsen ◽  
Frederik C. Krebs

2021 ◽  
Author(s):  
Riley Hooper ◽  
Chuyi Ni ◽  
Dylan Tkachuk ◽  
Yingjie He ◽  
Victor Terskikh ◽  
...  

Metal-halide perovskites remain top candidates for better-performing photovoltaic devices but concerns with leading lead-based materials continue. Ge perovskites remain understudied for use in solar cells compared to their Sn-based counterparts. In this work, we undertake a combined 133Cs and 73Ge solid-state NMR and DFT study of the bulk CsGeX3 (X = Cl, Br, I) series. We show how seemingly small structural variations within germanium halide perovskites have major consequences on their 73Ge and 133Cs NMR signatures and reveal a near cubic-like phase at room temperature for CsGeCl3 with severe local Ge polyhedral distortion. Quantum chemical computations are effective at predicting the structural impact on NMR parameters for 73Ge and 133Cs. This study demonstrates the value of a combined experimental and theoretical approach for investigating attractive materials for energy applications – providing information that is out of reach with conventional characterization methods – and adds the challenging 73Ge nucleus to the toolkit.


2020 ◽  
Vol 12 (20) ◽  
pp. 22939-22947 ◽  
Author(s):  
Jyoti Prasad ◽  
Hiren K. Machhi ◽  
Keval K. Sonigara ◽  
Vaibhav K. Patel ◽  
Saurabh S. Soni

2016 ◽  
Vol 4 (18) ◽  
pp. 6809-6814 ◽  
Author(s):  
Mutalifu Abulikemu ◽  
Silvano Del Gobbo ◽  
Dalaver H. Anjum ◽  
Mohammad Azad Malik ◽  
Osman M. Bakr

Antimony sulfide nanocrystals of various shapes and different phases are synthesized using a colloidal hot-injection method, and the as-prepared nanocrystals are used as a light harvesting material in photovoltaic devices.


At this point in our discussion we turn from solid state devices to biological systems and although this may seem to be a somewhat discontinuous transition there is in fact an almost complete line of connection between the two. This has already been indicated by Dr Nozik, whose photoelectrochemical cells resemble photovoltaic devices when used for the generation of electricity and also bear some similarity to the natural photosynthetic process when used for the photoelectrolysis of water. If electrodes are dispensed with and replaced by a donor or acceptor molecule, we enter the realm of ordinary photochemistry in homogeneous solution. Although homogeneous photochemical methods for the dissociation of water into hydrogen and oxygen have not yet been fully developed, this is at present a very active area of research where progress is rapid and promising. If it can be perfected it has many advantages over photoelectrochemical methods, not the least of which are economic ones


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