ShaneLogic/cds-layer-deposition-optimization
.claude/skills/cds-layer-deposition-optimization/SKILL.md
Optimize CdS window layer deposition and thickness for CdS/CdTe solar cells. Use when designing or fabricating CdS/CdTe cells to balance Voc and jsc trade-offs.
$ install --global
skillsauthnpx skillsauth add ShaneLogic/SolarLab cds-layer-deposition-optimizationInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- cds-layer-deposition-optimization
- description:
- Optimize CdS window layer deposition and thickness for CdS/CdTe solar cells. Use when designing or fabricating CdS/CdTe cells to balance Voc and jsc trade-offs.
CdS Layer Deposition and Thickness Optimization
When to Use
Apply this skill when:
- Depositing CdS window layer for CdS/CdTe solar cells
- Optimizing cell efficiency through layer thickness adjustment
- Selecting deposition method for CdS layer
- Troubleshooting Voc or jsc issues related to window layer
Prerequisites
- Conducting glass substrate prepared
- CdS source material available
- Understanding of junction formation requirements
Deposition Method Selection
Choose from these polycrystalline deposition methods:
- Vacuum deposition
- Vapor transport deposition
- Sputtering
- Close space sublimation
- Spray deposition
- Screen printing
Key Insight: Final cell efficiency is remarkably insensitive to deposition method choice after careful recrystallization.
Thickness Specifications
- Typical range: 30-80nm
- Standard value: ~60nm
- Recrystallization: May be required before CdTe deposition in some cases
Optimization Strategy
Balance two competing factors:
- Open circuit voltage (Voc): INCREASES with CdS thickness due to better junction formation and coverage
- Short circuit current (jsc): DECREASES with CdS thickness due to additional absorption of optically active light
CdS absorbs blue/UV photons that cannot contribute to CdTe photocurrent.
Target: Find minimum thickness that still provides good Voc.
Execution Steps
- Select deposition method based on equipment availability and process requirements
- Deposit initial CdS layer at ~60nm thickness
- Evaluate Voc and jsc performance
- Adjust thickness based on trade-off analysis:
- If Voc is insufficient: Increase thickness
- If jsc is insufficient: Decrease thickness
- Iterate to find optimal balance point
Variables
CdS_thickness: Layer thickness in nm (range: 30-80nm)Voc: Open circuit voltage (increases with CdS thickness)jsc: Short circuit current (decreases with CdS thickness)
Expected Output
Optimized CdS thickness value that balances Voc and jsc requirements for maximum cell efficiency.
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