Amorphized Silicon Nanomembranes for Giant Photoconversion
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Solution Overview
Problem
Conventional silicon light-to-electricity converters have low efficiency due to inappropriate methods and instruments, leading to partial conversion of solar light energy into electricity, limited by single-step absorption-generation processes and spectral distribution issues.
Innovation Solution
The introduction of a specific architecture featuring amorphized grains wrapped by a seg-matter nanolayer within a crystalline silicon host, utilizing nanomembranes for unidirectional charge flow and separation from recombination centers, enabling multistage photoconversion through segton and seg-matter interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional single-step absorption-generation processes are used in silicon converters, then the device structure remains simple, but the light-to-electricity conversion efficiency is low due to partial conversion of solar light energy
Solution Approach 1:
The invention segments the light-to-electricity conversion process into multiple stages by introducing nanoscale substructures (amorphized grains wrapped by seg-matter nanolayers) within the crystalline silicon host. These segmented substructures enable multistage photoconversion with secondary electron generation, transforming the single-step conventional process into a multi-step efficient conversion system that addresses the efficiency limitation while maintaining manageable structural complexity through modular nanoscale design
Solution Approach 2:
The invention implements nesting by placing amorphized grains containing segtons inside the crystalline silicon matrix, with each grain further wrapped by a seg-matter nanolayer. This nested architecture (crystalline host → amorphized grain → seg-matter nanolayer → segtons) enables multiple conversion stages within a hierarchical structure, allowing efficient multistage photoconversion without proportionally increasing overall device complexity
2Productivity
If nanomembranes and seg-matter nanolayers are introduced for multistage photoconversion, then secondary electron generation and collection efficiency improve, but the manufacturing process complexity increases
Solution Approach 1:
The invention applies preliminary action by pre-forming amorphized grains with embedded segtons through ion implantation and thermal treatment before final device assembly. The seg-matter nanolayer is deposited onto these pre-prepared grains, creating ready-to-function multistage conversion units that can be integrated into the crystalline silicon matrix. This sequential preparation approach enables complex nanoscale structures to be manufactured using established semiconductor processing techniques
Solution Approach 2:
The invention utilizes parameter changes by controlling the physical and chemical properties of silicon during processing - transforming crystalline silicon into amorphized phases through ion implantation energy and dose parameters, then converting to segton-containing structures through controlled thermal annealing. The seg-matter nanolayer deposition parameters (thickness, composition, crystallinity) are optimized to enable efficient electron generation and transport. These parameter controls allow precise tuning of conversion efficiency while managing manufacturing complexity
3Productivity
If amorphized grains wrapped by seg-matter nanolayer are embedded in crystalline silicon, then carrier transport and energy interaction with solar spectrum are optimized, but the structural complexity and manufacturing precision requirements increase
Solution Approach 1:
The invention applies local quality by creating nanoscale regions with distinct properties - amorphized grains with segtons for light absorption and secondary electron generation, wrapped by seg-matter nanolayers for electron transport, all embedded in the crystalline silicon matrix for structural support and hole collection. Each local region is optimized for its specific function, enabling efficient carrier transport and solar spectrum interaction while confining structural complexity to nanoscale volumes that can be manufactured with controlled precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances light-to-electricity conversion efficiency by allowing secondary electron generation and collection, optimizing energy interaction with the solar spectrum, and improving carrier transport, resulting in a significant increase in conversion efficiency beyond conventional limits.
Implementation Method 1
light-to-electricity converter which exploits the giant photoconversion with an arrangement of buried efficient subregions
Implementation Method 2
allowing secondary electron generation and collection, optimizing energy interaction with the solar spectrum
Implementation Method 3
utilizing nanomembranes for unidirectional charge flow and separation from recombination centers
Implementation Method 4
enabling multistage photoconversion through segton and seg-matter interactions
Data Source
Figure 1~2f
Figure 3a~4
Figure 5~6
AI summary
Architecture of the light-to-electricity converter characterized in that the system of amorphized nanograms, preferentially nanograms of amorphized silicon, of any shape are optimally spread within the crystalline host material, preferentially crystalline silicon that are wrapped around with a metamaterial seg-matter nanolayer, characterized by secondary generation centers, called segtons, that are conditioned around divacancies and disposed entirely or only partly within the volume of the emitter, this volume being limited at each end by a nanomembrane assuming the appropriate exploitation of the low-energy secondary generation through the giant photoconversion involving hot electrons, segtons and seg-matter.