The feasibility of a high speed InP based OEIC (optoelectronic integrated circuit) will be investigated.The combination of high speed InP based HBT will be integrated with a P-i-n photodetector. The integration of these two deviceswill simplify the material structure, the processing, and the… More

This Small Business Technology Transfer Research (STTR) Phase I Project will further develop a nanostructure technology for use as the active material of a fiber optic laser. Prior research has demonstrated that self-organized III-V semiconductor nanostructures grown on GaAs (gallium arsenide)… More

This Small Business Technology Transfer (STTR) Phase II project will develop a vertical cavity surface emitting laser (VCSEL) that operates at 1.3 micron wavelength based on incorporating a quantum dot active region of GaAs-based InAs and GaAsSb. It is based on recent research developments within… More

High-speed devices using InP play a critical role in the realization of power amplifiers for wireless and optical communication systems. Current gain cut-off frequencies in excess of 200 GHz have been demonstrated for InP HBTs, indicating the potential of these devices for use in high bandwidth… More

A fully monolithically-integrated X-band T/R module using InGaP/GaAs-based HBTs (heterojunction bipolar transistors) for both the transmit and receive functions is proposed. A single device structure designed for both the transmit and receive function is proposed to simplify the design and to lower… More

The significance of the innovation in this Phase I SBIR is the development of a low cost compound semiconductor material for high efficiency and high specific power solar array technology. This will be accomplished by the development of a production worthy Multiple-layer Epitaxial Lift Off (MELO)… More

The significance of the innovation in this Phase I SBIR is the development of a technology which will enable the manufacture of a light weight, low cost cost , multi-band gap compound semiconductor material containing high efficiency compound semiconductor multijunction solar cells suitable for… More

A fully monolithically integrated L-band T/R module using InGaP/GaAs-based HBTs (heterojunction bipolar transistors) for both the transmit and receive functions is proposed. We plan to improve the efficiency by implementing a DHBT (double heterojunction bipolar transistor) InGaP HBT which is… More

This SBIR Phase I research project will develop a lower cost high quality compound semiconductor thin film for advanced renewable energy technology. This program will investigate Multiple-layer Epitaxial Lift Off (MELO) technique as it applies to a group of Photovoltaic (PV) epitaxial structures… More

The innovation in this Phase I SBIR is the development of a technology, which will enable the manufacture of a lightweight and low cost, InP wafer based high efficiency multijunction solar cells suitable for deployment in space applications. InP based based materials are best suited for space… More

The significance of the innovation in this Phase II SBIR is the development of a low cost lightweight multi-bandgap GaAs semiconductor material for high efficiency multijunction solar cells for space applications. This effort will advance space solar cell development by improvements in the… More

The innovation in this Phase I SBIR is the development of a technology which will enable the manufacture of a lightweight, low cost, InP based compound semiconductor material containing high efficiency multijunction solar cells suitable for deployment in very high altitude, very long endurance solar… More

The goal of this Phase II project is to deliver an integrated L-band transmit/receive (T/R) module which will be fabricated from a GaAs-based combined HBT/PHEMT epistructure. The T/R module will consist of a power amplifier, a low noise amplifier, and two switches. The performance goal for the low… More

The innovation in the proposed program is the development of a unique process technology that will enable the realization of a high current InP based photodetector with improved current response and reliability performance. The process technology is an epitaxial lift-off (ELO) process where the… More

This Small Business Innovation Research Phase I research project addresses the need to collect information on the location and condition of high-value inventory items while in transit. The project objective is to develop an advanced, low-cost, battery-operated RFID tag (the Hypertag). Custom and… More

This proposal addresses the need for the development of higher efficiency power amplifiers at L-band using GaAs HBT (heterojunction bipolar transistors) for pulsed mode radar applications. In this proposal we offer a novel approach for signifcantly improving the thermal characteristics of high… More

The innovation in this Phase II SBIR is the development of a technology which will enable the manufacture of a lightweight, low cost, high radiation resistance InP based solar cells with high efficiency suitable for space power systems. The key technological step is the application of a… More

MicroLink Devices, in collaboration with UCLA, proposes to develop a photovoltaic sheet with a >20% conversion efficiency and a 30% elastic response to biaxial strains. The photovoltaic sheet will consist of an array of inelastic solar cells connected in series by stretchable conductive… More

The significance of the innovation in this Phase II SBIR is the development of a low cost, lightweight epitaxial liftoff (ELO) process for dual junction InP solar cells, which can provide a pathway towards the utilization of InP solar cells in practical space missions. This effort will advance InP… More

The significance of the innovation in this Phase II SBIR is the development of a low cost, lightweight epitaxial lift-off (ELO) process for large improvements in the power/weight ratio in solar cell devices. This effort will advance solar cell development by decreasing the weight while maintaining… More

The proposed SBIR will focus on the development of wafer bonding of GaAs and InP to produce a two junction tandem solar cell which will be the basis to realize a high efficiency solar cell with high manufacturing yield.The target efficiency of the two-junction solar cell is 40% at under AM0… More

Solar concentrator systems will require solar cells with improved efficiency and reduced cost in order to be competitive. New approaches are needed to build solar cells for optimum performance in high concentration applications. This project will demonstrate multifunction solar cells with backside… More

The innovation in the proposed SBIR Phase I project is the development of a unique triple unction inverted metamorphic technology (IMM), which will enable the manufacture of very lightweight, low-cost InP-based multijunction solar cells. The proposed IMM technology will consist of an all indium and… More

The cost of electricity generated by concentrator photovoltaic systems is strongly dependent on the efficiency of the solar cells in the solar concentrator system. The efficiency of these solar cells is limited by the fact that the electrical contacts used to collect current from the solar cell are… More

This Small Business Innovation Research (SBIR) Phase I project aims to substantially reduce the cost of multijunction solar cells for terrestrial concentrator photovoltaic (CPV) solar power generation. The presently favored type of solar cell for CPV applications is the inverted metamorphic… More

The innovation in this SBIR Phase II project is the development of a unique triple junction inverted metamorphic technology (IMM), which will enable the manufacturing of very lightweight, low-cost, InGaAsP-based multijunction solar cells. The proposed IMM technology is based on ELO (epitaxial… More

The proposed innovation is an InGaAs-based, radiation-tolerant, micron-gap thermophotovoltaic (MTPV) technology. The use of a micron wide gap between the radiation source and the photovoltaic substantially increases the efficiency of the thermophotovoltaic. This work will be accomplished by… More

ABSTRACT: MicroLink proposes a device that combines ultra-thin, high-efficiency, GaAs-based multijunction solar cells, made using our proprietary epitaxial lift-off (ELO) process, with a novel packaging approach that will result in high-efficiency, flexible photovoltaic blankets. MicroLink has… More

MicroLink proposes a novel device structure which combines ultra-thin, high-efficiency, GaAs-based multijunction solar cells with a novel packaging approach that will result in high flexibility, elastic solar sheets. MicroLink has developed a process that produces ultra-thin, flexible solar cells.… More

The innovation in this Phase II SBIR program is the development of a unique process technology that will enable the realization of a high current InP based photodetector capable of operating at increased optical power densities and with improved reliability. The process technology is an epitaxial… More

We propose to develop a high-efficiency, triple-junction, epitaxial lift-off (ELO) solar cell by incorporating quantum dots (QDs) within the current-limiting subcell. We intend to leverage existing QD epitaxy processes developed by the Rochester Institute of Technology and combine this with… More

ABSTRACT: MicroLink will develop a high-efficiency, flexible photovoltaic blanket, which will reduce solider borne weight by reducing battery requirements. The photovoltaic blanket will combine ultra-thin, flexible high-efficiency, GaAs-based multi-junction solar cells, made using MicroLink"s… More

With recent advances in MicroLink's inverted metamorphic (IMM) multijunction epitaxial lift off (ELO) solar cells, new opportunities for solar cell packaging are possible that leverage the inherent physical flexibility of these high efficiency solar cells. Novel photovoltaic (PV) blankets can… More

Very large solar arrays to power future solar electric propulsion systems will require a new generation of solar cells that are not only high efficiency, but also light weight and significantly lower cost than existing multijunction solar cells based on Ge substrates. The large volume of solar cells… More

ABSTRACT: The innovation in this proposed Phase I SBIR program is the development of a new type of top subcell for a novel, all-lattice-matched multijunction solar cell. The proposed structure will achieve a much higher end-of-life power conversion efficiency, in conjunction with a greatly… More