Optoelectronic Devices Notes PDF in Hindi | LED, Photodiode and Solar Cell | Engineering Physics (BT-202) | RGPV BTech First Year

Optoelectronic Devices Notes PDF in Hindi | LED, Photodiode and Solar Cell | Engineering Physics (BT-202) | RGPV BTech First Year


Optoelectronic Devices

Optoelectronic Devices рдРрд╕реЗ Semiconductor Devices рд╣реЛрддреЗ рд╣реИрдВ рдЬреЛ Light Energy рддрдерд╛ Electrical Energy рдХреЗ рдмреАрдЪ Conversion рдХрд╛ рдХрд╛рд░реНрдп рдХрд░рддреЗ рд╣реИрдВред Optoelectronics рдЖрдзреБрдирд┐рдХ Electronics, Communication Systems, Fiber Optic Networks, Medical Equipment, Automation Systems рддрдерд╛ Renewable Energy Technologies рдХрд╛ рдорд╣рддреНрд╡рдкреВрд░реНрдг рднрд╛рдЧ рд╣реИред

LED, Photodiode рддрдерд╛ Solar Cell Optoelectronic Devices рдХреЗ рдкреНрд░рдореБрдЦ рдЙрджрд╛рд╣рд░рдг рд╣реИрдВред рдпреЗ Devices рдкреНрд░рдХрд╛рд╢ рдХрд╛ рдЙрддреНрдкрд╛рджрди, рдкреНрд░рдХрд╛рд╢ рдХрд╛ рдкрддрд╛ рд▓рдЧрд╛рдиреЗ рддрдерд╛ рдкреНрд░рдХрд╛рд╢ рд╕реЗ рд╡рд┐рджреНрдпреБрдд рдКрд░реНрдЬрд╛ рдЙрддреНрдкрдиреНрди рдХрд░рдиреЗ рдЬреИрд╕реЗ рдХрд╛рд░реНрдп рдХрд░рддреЗ рд╣реИрдВред


Introduction

Optoelectronics Electronics рддрдерд╛ Optics рдХрд╛ рд╕рдВрдпреБрдХреНрдд рдХреНрд╖реЗрддреНрд░ рд╣реИред рдЗрд╕рдореЗрдВ рдРрд╕реЗ Devices рдХрд╛ рдЕрдзреНрдпрдпрди рдХрд┐рдпрд╛ рдЬрд╛рддрд╛ рд╣реИ рдЬреЛ Light рдФрд░ Electrical Signals рдХреЗ рдмреАрдЪ Interaction рдХрд░рддреЗ рд╣реИрдВред

рдЖрдЬ Fiber Optic Communication, Smart Sensors, Display Technology рддрдерд╛ Solar Energy Systems рдХреЗ рд╡рд┐рдХрд╛рд╕ рдореЗрдВ Optoelectronic Devices рдХреА рдорд╣рддреНрд╡рдкреВрд░реНрдг рднреВрдорд┐рдХрд╛ рд╣реИред


Definition

Optoelectronic Devices are semiconductor devices that either convert electrical energy into light energy or convert light energy into electrical energy.

рд╡реЗ Semiconductor Devices рдЬреЛ Electrical Energy рдФрд░ Light Energy рдХреЗ рдмреАрдЪ Conversion рдХрд░рддреЗ рд╣реИрдВ, Optoelectronic Devices рдХрд╣рд▓рд╛рддреЗ рд╣реИрдВред


Classification of Optoelectronic Devices

  1. Light Emitting Devices
  2. Light Detecting Devices
  3. Light Energy Conversion Devices

1. Light Emitting Devices

рдпреЗ Devices Electrical Energy рдХреЛ Light Energy рдореЗрдВ рдкрд░рд┐рд╡рд░реНрддрд┐рдд рдХрд░рддреЗ рд╣реИрдВред

Main Example

  • LED (Light Emitting Diode)
  • Laser Diode

LED (Light Emitting Diode)

LED рдПрдХ Forward Biased PN Junction Device рд╣реИ рдЬреЛ Electroluminescence Principle рдкрд░ рдХрд╛рд░реНрдп рдХрд░рддрд╛ рд╣реИред

Features

  • Low Power Consumption
  • High Efficiency
  • Long Life
  • Fast Switching

Applications

  • Displays
  • Indicators
  • Traffic Signals
  • Lighting Systems

2. Light Detecting Devices

рдпреЗ Devices Light Energy рдХреЛ Electrical Signal рдореЗрдВ рдкрд░рд┐рд╡рд░реНрддрд┐рдд рдХрд░рддреЗ рд╣реИрдВред

Main Example

  • Photodiode
  • Phototransistor

Photodiode

Photodiode Reverse Bias рдореЗрдВ рдХрд╛рд░реНрдп рдХрд░рдиреЗ рд╡рд╛рд▓рд╛ Light Sensitive Semiconductor Device рд╣реИред

Working Principle

  • Photoelectric Effect
  • Electron-Hole Pair Generation
  • Photocurrent Production

Applications

  • Optical Communication
  • Light Sensors
  • Smoke Detectors
  • Security Systems

3. Light Energy Conversion Devices

рдпреЗ Devices Light Energy рдХреЛ Electrical Power рдореЗрдВ рдкрд░рд┐рд╡рд░реНрддрд┐рдд рдХрд░рддреЗ рд╣реИрдВред

Main Example

  • Solar Cell

Solar Cell

Solar Cell Photovoltaic Effect рдкрд░ рдХрд╛рд░реНрдп рдХрд░рддрд╛ рд╣реИ рдФрд░ Solar Energy рдХреЛ Electrical Energy рдореЗрдВ рдкрд░рд┐рд╡рд░реНрддрд┐рдд рдХрд░рддрд╛ рд╣реИред

Features

  • Renewable Energy Source
  • Environment Friendly
  • Long Operating Life
  • Low Maintenance

Applications

  • Solar Power Plants
  • Satellites
  • Street Lights
  • Residential Solar Systems

Laser Diode

Laser Diode рдПрдХ Semiconductor Device рд╣реИ рдЬреЛ Coherent Light рдЙрддреНрдкрдиреНрди рдХрд░рддрд╛ рд╣реИред

Characteristics

  • Monochromatic Light
  • High Intensity
  • Directional Beam
  • Coherent Radiation

Applications

  • Fiber Optic Communication
  • Barcode Scanners
  • CD/DVD Drives
  • Medical Equipment

Phototransistor

Phototransistor рдПрдХ Light Sensitive Transistor рд╣реИ рдЬрд┐рд╕рдХреА Current Gain Photodiode рдХреА рддреБрд▓рдирд╛ рдореЗрдВ рдЕрдзрд┐рдХ рд╣реЛрддреА рд╣реИред

Applications

  • Light Detection Systems
  • Automatic Switching
  • Object Detection
  • Industrial Automation

Comparison of Optoelectronic Devices

Device Input Output
LED Electrical Energy Light Energy
Photodiode Light Energy Electrical Signal
Solar Cell Light Energy Electrical Power
Laser Diode Electrical Energy Laser Light

Advantages of Optoelectronic Devices

  • High Speed Operation
  • Low Power Consumption
  • Compact Size
  • High Reliability
  • Long Life
  • Excellent Performance

Applications of Optoelectronics

  • Fiber Optic Communication
  • Medical Electronics
  • Industrial Automation
  • Smart Sensors
  • Display Technology
  • Renewable Energy Systems
  • Defense Electronics
  • Consumer Electronics

Industrial Importance

  • Communication Industry
  • Electronics Industry
  • Medical Equipment Industry
  • Automation Industry
  • Renewable Energy Industry
  • Defense Industry

Viva Questions

  1. Optoelectronic Device рдХреНрдпрд╛ рд╣реИ?
  2. LED рдХрд┐рд╕ Principle рдкрд░ рдХрд╛рд░реНрдп рдХрд░рддреА рд╣реИ?
  3. Photodiode рдХрд┐рд╕ Principle рдкрд░ рдХрд╛рд░реНрдп рдХрд░рддрд╛ рд╣реИ?
  4. Solar Cell рдХрд┐рд╕ Principle рдкрд░ рдХрд╛рд░реНрдп рдХрд░рддрд╛ рд╣реИ?
  5. Laser Diode рдХреНрдпрд╛ рд╣реИ?
  6. Phototransistor рдХреНрдпрд╛ рд╣реИ?
  7. Optoelectronics рдХреНрдпрд╛ рд╣реИ?
  8. LED рдФрд░ Photodiode рдореЗрдВ рдЕрдВрддрд░ рдмрддрд╛рдЗрдПред
  9. Solar Cell рдХреЗ рдЕрдиреБрдкреНрд░рдпреЛрдЧ рд▓рд┐рдЦрд┐рдПред
  10. Fiber Optic Communication рдореЗрдВ Optoelectronic Devices рдХрд╛ рдХреНрдпрд╛ рдорд╣рддреНрд╡ рд╣реИ?

Exam Oriented Important Questions

  1. Optoelectronic Devices рдХрд╛ рд╡рд░реНрдЧреАрдХрд░рдг рд╕рдордЭрд╛рдЗрдПред
  2. LED, Photodiode рддрдерд╛ Solar Cell рдХреА рддреБрд▓рдирд╛ рдХреАрдЬрд┐рдПред
  3. Photodiode рдХрд╛ рдХрд╛рд░реНрдп рд╕рд┐рджреНрдзрд╛рдВрдд рд╕рдордЭрд╛рдЗрдПред
  4. Solar Cell рдХрд╛ рдирд┐рд░реНрдорд╛рдг рдПрд╡рдВ рдХрд╛рд░реНрдп рд╕рд┐рджреНрдзрд╛рдВрдд рд╕рдордЭрд╛рдЗрдПред
  5. Laser Diode рдкрд░ рд╕рдВрдХреНрд╖рд┐рдкреНрдд рдЯрд┐рдкреНрдкрдгреА рд▓рд┐рдЦрд┐рдПред
  6. Optoelectronic Devices рдХреЗ рдЕрдиреБрдкреНрд░рдпреЛрдЧ рд▓рд┐рдЦрд┐рдПред
  7. Optoelectronics рдХрд╛ рдФрджреНрдпреЛрдЧрд┐рдХ рдорд╣рддреНрд╡ рд╕реНрдкрд╖реНрдЯ рдХреАрдЬрд┐рдПред
  8. Modern Communication Systems рдореЗрдВ Optoelectronic Devices рдХреА рднреВрдорд┐рдХрд╛ рд╕рдордЭрд╛рдЗрдПред

Conclusion

Optoelectronic Devices рдЖрдзреБрдирд┐рдХ Electronics рдПрд╡рдВ Communication Technology рдХрд╛ рдорд╣рддреНрд╡рдкреВрд░реНрдг рднрд╛рдЧ рд╣реИрдВред LED, Photodiode, Solar Cell рддрдерд╛ Laser Diode рдЬреИрд╕реЗ Devices рдиреЗ Display Systems, Optical Communication рддрдерд╛ Renewable Energy рдХреЗ рдХреНрд╖реЗрддреНрд░ рдореЗрдВ рдХреНрд░рд╛рдВрддрд┐рдХрд╛рд░реА рдкрд░рд┐рд╡рд░реНрддрди рдХрд┐рдП рд╣реИрдВред рднрд╡рд┐рд╖реНрдп рдХреА Smart Technologies рдореЗрдВ рдЗрди Devices рдХреА рднреВрдорд┐рдХрд╛ рдФрд░ рдЕрдзрд┐рдХ рдорд╣рддреНрд╡рдкреВрд░реНрдг рд╣реЛрдЧреАред

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