Nanotextured Surface Dramatically Improve Solar Cell Efficiency. The Engineer posted on January 22, 2015 | | 4074 views. Reducing the amount of sunlight that bounces off the surface of solar cells helps maximize the conversion of the sun's rays to electricity, so manufacturers use coatings to cut down on reflections.
The main entry door must conform to IRC specifications. Exterior doors often are the most visible parts of a house and like interior doors, are available in standard sizes. They range in width from 2 feet to more than 3 feet, and in height from 6 feet, 8 inches to more than 8 feet. Standard thickness is 1 3/4 inches.
In your case, I feel you can use a standard exterior door with no issues whatsoever. Most exterior doors are 36 inches in width. By the time you add in the spacing between the door and the jamb and the thickness of the jamb, you have a unit dimension of 38 inches or so. Add 4 more inches for the standard brick molding and you'll be pretty close to 42 or 43 inches in total width.