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  _  __     ___      ____     _    _      _____  
 | |/ //   / _ \\   |  _ \\  | || | ||   / ___// 
 | ' //   / //\ \\  | |_| || | || | ||   \___ \\ 
 | . \\  |  ___  || | .  //  | \\_/ ||   /    // 
 |_|\_\\ |_||  |_|| |_|\_\\   \____//   /____//  
 `-` --` `-`   `-`  `-` --`    `---`   `-----`

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Text this: A2Bn-1PbnI3n+1 (A = BA, PEA; B = MA; n = 1, 2): engineering quantum-well crystals for high mass density and fast scintillators