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  ____       ___       _____     ___     ______   
 |  _ \\    / _ \\    / ___//   / _ \\  |      \\ 
 | |_| ||  / //\ \\   \___ \\  / //\ \\ |  --  // 
 | .  //  |  ___  ||  /    // |  ___  |||  --  \\ 
 |_|\_\\  |_||  |_|| /____//  |_||  |_|||______// 
 `-` --`  `-`   `-` `-----`   `-`   `-` `------`

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Text this: On the origin of the electron blocking effect by an n-type AlGaN electron blocking layer