Final Report: Thin Silicon Solar Cells - A Path to 35% Shockley-Queisser Limits
- Arizona State Univ., Tempe, AZ (United States)
- California Inst. of Technology (CalTech), Pasadena, CA (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Ecole Polytechnique Federale Lausanne (Switzlerland)
Carrier selective contacts have revolutionized efficiencies of silicon solar cell, with the most recent efficiencies showing 26.3% efficiency. The project has substantially advanced the understanding and state of the art in carrier selective contacts, providing experimental and conceptual advances. Additionally, over the course of the project, there has been increasing interest on the development of silicon based tandems, and the project provided several critical advances that support the development of silicon-based tandems. Key outcomes of the project include: Highest voltage from a carrier selective contact solar cell Demonstration of GaP as a selective carrier contact, using intrinsic a-Si as a membrane layer Demonstration of highest efficiency solar cell using MoOx as a carrier selective contact Fundamental processes in the carrier selective contacts, including advances in understanding transport in carrier selective contact Identification of processes and approaches to circumvent minority carrier lifetime degradation of silicon during growth of III-V’s on silicon Demonstration of approaches to improve absorption in solar cells using improved rear reflectors Improved understanding of processes that control the FF of a solar cell First demonstration of a GaP/Si heterostructure solar cell using GaP as a hetero-emitter
- Research Organization:
- Arizona State Univ., Tempe, AZ (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- EE0006335
- OSTI ID:
- 1460576
- Report Number(s):
- DOE-ASU-6335-044
- Country of Publication:
- United States
- Language:
- English
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