Knowledge (XXG)

Homojunction

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17: 179: 95:. An n-type to n-type junction, for example, would be considered a homojunction even if the doping levels are different. 73: 130: 65: 57: 29: 69: 61: 52:
interface that occurs between layers of similar semiconductor material; these materials have equal
87:
This is not a necessary condition as the only requirement is that the same semiconductor (same
37: 120: 81: 103: 25: 92: 173: 49: 125: 99: 21: 115: 60:. In most practical cases a homojunction occurs at the interface between an 33: 88: 53: 77: 106:
will be formed at the interface, as shown in the figure to the right.
40:
for conduction band and valence band in n and p regions (red curves).
24:. The band at the interface is continuous. In forward bias mode, the 16: 15: 91:) is found on both sides of the junction, in contrast to a 28:
decreases. Both p and n junctions are doped at a 1e15/cm3
8: 142: 36:of ~0.59 V. Observe the different 98:The different doping level will cause 164:Fundamentals of semiconductor devices 7: 14: 166:. McGraw-Hill. ISBN 0070722366 1: 76:doped) semiconductor such as 56:but typically have different 32:level, leading to built-in 196: 180:Semiconductor structures 162:Yang, Edward S (1978). 131:Doping (semiconductor) 41: 19: 80:, this is called a 149:Yang 1978, p. 141. 42: 38:Quasi Fermi levels 187: 150: 147: 104:depletion region 195: 194: 190: 189: 188: 186: 185: 184: 170: 169: 159: 154: 153: 148: 144: 139: 112: 26:depletion width 20:A homojunction 12: 11: 5: 193: 191: 183: 182: 172: 171: 168: 167: 158: 155: 152: 151: 141: 140: 138: 135: 134: 133: 128: 123: 118: 111: 108: 93:heterojunction 13: 10: 9: 6: 4: 3: 2: 192: 181: 178: 177: 175: 165: 161: 160: 156: 146: 143: 136: 132: 129: 127: 124: 122: 119: 117: 114: 113: 109: 107: 105: 101: 96: 94: 90: 85: 83: 79: 75: 71: 67: 63: 59: 55: 51: 50:semiconductor 47: 39: 35: 31: 27: 23: 18: 163: 145: 126:Band bending 121:p–n junction 100:band bending 97: 86: 82:p–n junction 46:homojunction 45: 43: 68:doped) and 22:PN junction 157:References 116:Transistor 54:band gaps 34:potential 174:Category 110:See also 102:, and a 89:band gap 74:acceptor 78:silicon 70:p-type 62:n-type 58:doping 30:doping 137:Notes 66:donor 48:is a 84:. 176:: 44:A 72:( 64:(

Index


PN junction
depletion width
doping
potential
Quasi Fermi levels
semiconductor
band gaps
doping
n-type
donor
p-type
acceptor
silicon
p–n junction
band gap
heterojunction
band bending
depletion region
Transistor
p–n junction
Band bending
Doping (semiconductor)
Category
Semiconductor structures

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