Release tapes kind of ordinary tapes (sellotapes) which lose the adhesivity after exposed to enough heat or UV light irradiation. In the below image the heat release tape (hereafter called TRT) can be observed on the right and the UV release tape (UVRT) on the left. Single layer graphene mono layer deposited on the copper […]
Multi-walled Carbon Nano Tubes Dispersion in Liquids by Sonication
Dispersion of nano tubes of carbon in liquid (CNT) whether organic or aqueous is the key to coatings by EPD method or spin coating. The multiwall CNT (MWCNT) was bought from US research Nanomaterials Inc. The specification of this product follows. More info can be found on www.us-nano.com. Purity: > 95 wt% […]
Graphene Oxide Thick Film Reduction by Carbon Dioxide Laser Irradiation on N-type Silicon Wafer
A 50 milliliter colloidal solution of mono layer GO was readily bought from a local market. The concentration of GO was about 5 grams per liter. Following figure demonstrates the FESEM of the colloidal GO solution, TEM image and XRD curve. FESEM Image proves the sheet like structure of GO oxide and single peak on […]
Old Voltmeter Restoration (Part 2)
Now it is time to repair the aluminum panel. First step is cleaning the panel with a fine sandpaper. All color coating needs to be removed. After, the mask needs to be ready by adobe illustrator design suit or other relevant software. Below is the designed masks for lithography. The old panels were scanned by […]
Old Voltmeter Restoration (Part 1)
We debt our measurements to meter! Today I am gonna restore an old AC voltmeter which was thrown away. Spending some time and money on it leads a dead meter to a restored and stylish meter. First of all it is needed to reconstruct the chipped corners by using epoxy resin. Before casting the resin, […]
ITO Polymer Sheets Etching Experience
Indium tin oxide (ITO) coated on glass substrate or translucent polymer like PET has been in market for years. Thin layer of ITO is both transparent and electrical conductive, so it has found its way to optics and electronics. As an example the anti-frost, airplane windshields glasses are deposited with a very thin layer of […]
Conductive Paste, The First Experience
Objective: Evaluating conductive characteristics of graphite powder to make conductive ink or paste Nowadays using conductive inks and pastes consumption has risen to a great extent. Wearables generally need conductive paths on flexible polymers can be likened to copper on fiber glass sheets (FR4) to build up an electrical circuit. Use of fine grain or […]