PowerFilm, Inc  

Ames,  IA 
United States
  • Booth: 942

PowerFilm offers custom solar solutions for IoT power needs.

Want to extend battery life and reduce battery replacement costs? PowerFilm Solar designs, manufactures, and assembles custom power solutions ranging from a few microwatts up to several kilowatts. We specialize in IoT solutions using amorphous silicon material that can be optimized for use in outdoor or indoor environments. 

Want to extend battery life and reduce battery replacement costs? 

PowerFilm Solar designs, manufactures, and assembles custom power solutions ranging from a few microwatts up to several kilowatts. 

We specialize in IoT solutions using amorphous silicon material that can be optimized for use in outdoor or indoor environments. 

We’ve been providing customer-driven solar solutions for over 30 years including custom panels, encapsulation and substrates, and complete solution designs.

Brands: PowerFilm Soltronix

 Press Releases

  • Post #113 New Energy Harvesting Tools & PV Cells for IoT Devices Blog Post Title Graphic

    Our new line of PV cells and reference designs make implementing energy harvesting into your products easier.

    New cells offer smaller form factors, ideal for the compact electronics used in most IoT applications. Exposed contacts and integrated FPC connector tabs make connecting or mounting to a PCB simple.

    Reference designs provide examples of ultra-low-power BLE solutions, energy harvesting PMICs, and how PV cells can be mounted to a PCB via conductive epoxy or FPC connectors.

    With these new products, PowerFilm has the tools and support you need at all stages of the development process, from prototype to product launch.

    Read the rest of this blog post

  • Characterizing Your Indoor PV Energy Harvesting Environment: 5 Keys Factors Blog Post Title Graphic

    Harvesting indoor light energy is a viable power solution for many wireless sensors, trackers, and low-power devices used in a growing number of Internet of Things (IoT) applications. 

    Indoor photovoltaic (PV) modules provide a perpetual energy source that extends battery life, allows increased device functionality, and reduces battery bulk. 

    When considering a PV energy harvesting solution, the first step is evaluating your application environment. 

    Characterizing the following factors is essential to make sure your device remains charged. 

    1. Intensity

    2. Daily Light Exposure

    3. Shading

    4. Mobility

    5. Spectrum

    Read the rest of this blog post

  • What Features Are Most Important For Energy Harvesting PMICs Blog Post Title Graphic

    Energy Harvesting Power Management ICs (EH PMIC) are critical components of energy-autonomous electronics. They connect PV, energy storage, and the load ensuring power flows efficiently between all components. 

    Not all PMICs are the same. Many come with a range of features that make them suitable for different applications or environments, so it can be challenging to pick out what's most important. 

    Below is a list of the most critical PMIC features you need for solar and light energy harvesting applications.

    Read the rest of this blog post

  • Our Custom Solar Design Process Blog Post Title Graphic

    Inspiration can strike at a moment’s notice. 

    One minute you're at a cafe sipping coffee and reading a magazine when all of a sudden, the lightbulb turns on, and your next great product idea is born. 

    While creativity is crucial to a successful product, equally important is a process that leads to efficient development, shipping on time, and delighting customers.

    PowerFilm’s solar technology and capabilities are versatile, allowing us to provide custom solutions across multiple industries and markets, including military, transportation, IoT, and many others.

    Solar design can be a bit overwhelming, but over the past 32 years, we have designed a process that makes developing your next product collaborative and cost-effective.

    Read the rest of this blog post


  • AEM-PF-EVK Solar Development Kit with e-peas PMIC
    The AEM-PF-EVK Solar Development Kit with e-peas PMIC (DEV-EPEAS) makes integrating solar into electronics simple. It includes an e-peas high-performance energy harvesting PMIC with integrated power management optimized for PowerFilm solar panels....

  • Buy This Development Kit

    The AEM-PF-EVK Solar Development Kit with e-peas PMIC (DEV-EPEAS) makes integrating solar into electronics simple. It includes an e-peas high-performance energy harvesting PMIC with integrated power management designed and optimized for PowerFilm’s thin-film indoor and outdoor solar panels. Use Indoor Light series panels for indoor applications and use Classic Application panels for outdoor environments.

    The AEM-PF-EVK efficiently extracts energy from the solar modules, which can be stored in a rechargeable element while also providing two independent regulated voltages to power IoT devices. The integrated power management supports multiple storage element charge configurations, including, Li-Po, Li-ion, LiFePO4, Solid State, and Single/Double cell supercapacitors. Configurations are easily selected by moving pin jumpers to desired positions.

    Kit Contents

    • AEM-PF-EVK Dev Kit PCBA

    • (2) MPT2.4-21 Solar Panel with leads

    • (2) LL200-2.4-37 Indoor Solar Panel with leads

    • 60mAh rechargeable Li-Polymer battery

    • Instructions and product documentation

    Panel Specifications

    Indoor Series          


    1000 lux:

    • 0.462mW

    • 0.220mA

    • 2.1V

    200 lux:

    • 0.07W

    • 0.044mA

    • 1.6V

    Classic Application


    100% Sun

    • 32mW

    • 14.2mA

    • 2.4V

    25% Sun

    • 7.7mW

    • 3.2mA

    • 2.4V

    System Diagram

    Board Layout

    aem-pf-evk solar development kit with e-peas PMIC board layout

    Use Cases - Power Sources For

    • BLE Beacons and Tags

    • E-Paper Displays

    • Telematics

    • Smart Locks

    • Thermostats

    • Smart Windows and Shades

    • Wireless Sensors

    • Wearables

    • Field and Herd Monitoring

    • Other Low Power Electronics


    Energy Harvester and Power Management

    • Cold start at 3μW 380mV

    • Global quiescent current of 400nA

    • MPPT ratio configured to 70%

    • Storage element voltage protection

    • Primary battery with minimum voltage protection

    • Two LDO power output rails with enable pins

    • Dual cell supercapacitor balancing circuit

    • Internal boost converter (up to 95%): 50mV to 5V


    • Screw connector for PowerFilm PV cell

    • Screw connector for storage element

    • Multiple PCB footprints for supercapacitors

    • Screw connector for primary battery

    • Screw connector for HVOUT LDO output (80mA)


    • CFG selection jumpers for storage element type

    • Resistors footprints for custom mode

    • Jumpers for output enable/disable

    • Jumpers for primary battery option

    • Jumper for supercapacitor cell balancing circuit enable


    • 58 mm x 49 mm

    • 4 x M 2 5 Mounting holes

    IV Curves

    Indoor Series

    Classic Application

    MPT2.4-21 25% &100% Sun Electronic Component Solar Panel IV Curve


    Harvesting indoor light with the paired LL200-2.4-37 panel provides approximately 80μW in a low light luminosity (200 lux). After eight hours of exposure, the AEM10941 harvester will collect about 1.8 J of energy.

    Harvesting outdoor light with the paired MPT2.4-21 panel provides approximately 6.8mW under indirect or ambient sunlight (25% of direct sunlight). After eight hours of exposure, the AEM10941 harvester will collect 

    about 156 J of energy.

    AEM10941 Efficiency

    e-peas AEM1094 1mA efficiency curvee-peas AEM1094 10mA efficiency curve

    e-peas AEM1094 100mA efficiency curvee-peas AEM1094 100µA efficiency curve

  • INQ3.6-24x44T (Indoor Light Series)
    The INQ3.6-24x44T opens new opportunities for developing remote power solutions in low light and indoor applications. It provides energy collection at light levels down to 200 lux and below, making it useful for almost any indoor environment....

  • Technical Drawing

    Electrical Specifications:

    Max Voc all light levels = 5.5V

    200 Lux

    • Power: 0.031mW

    • Operating Voltage: 2.4V

    • Current: 0.013mA

    • Average Voc: 3.6V

    • Isc: 0.02mA

    1000 Lux

    • Power: 0.204mW

    • Operating Voltage: 3.2V

    • Current: 0.063mA

    • Average Voc: 4.0V

    • Isc: 0.08mA

    Physical Specifications:

    • Dimensions: 44.0 x 24.0 (mm) / 1.732 x 0.944 (in) 

    • Weight: 0.010oz / 0.270g

    • Thickness: 0.22mm

    IV Curve

    INP3.6-24x44T IV Curve

  • ONP2.4-15x94 (Classic Application Series)
    The ONP2.4-15x94 offers a new opportunity to solve the old problem of limited power for wireless electronics designed for portable and remote applications. ONP2.4-15x94 is lightweight, paper-thin, and durable....

  • Technical Drawing

    Electrical Specifications:

    Full Sun

    • Power: 45mW

    • Operating Voltage: 2.4V

    • Current: 18.6mA

    1/4 Sun

    • Power: 10.1mW

    • Operating Voltage: 2.4V

    • Current: 4.2mA

    All Light Levels

    • Average Voc: 3.2V

    • Maximum Voc: 3.7V

    • Isc: 24.2mA

    Physical Specifications:

    • Dimensions: 94.0 x 14.6 (mm) / 3.70 x 0.57 (in)

    • Weight: 0.01oz / 0.40g

    • Thickness: 0.22mm

    IV Curve

    ONP2.4-15x94 IV Curve

  • BLE Reference Designs
    PowerFilm’s BLE Reference Designs provide examples of ultra-low-power BLE solutions, energy harvesting PMICs, and how PV cells can be mounted to a PCB via conductive epoxy or FPC connectors....

  • PowerFilm’s BLE Reference Designs provide examples of ultra-low-power BLE solutions, energy harvesting PMICs, and how PV cells can be mounted to a PCB via conductive epoxy or FPC connectors.

    Each of the three designs feature a complete energy harvesting power management solution and Nordic nRF52832 SoC. They are a perfect starting point and guide for developers looking to use PowerFilm’s flexible solar with Nordic BLE or other  IoT products. 

    Visit the PowerFilm BLE Reference Design Github Page for detailed technical information, software, and hardware documentation. 

    Standard BLE Design

    Features a compact PV module SMT mounted to the circuit board via conductive epoxy. This design can run with a battery, supercap, or bank of standard capacitors. The e-peas AEM10941 charges the storage element and manages the power delivered to the Nordic BLE device. A custom direct power output feature maximizes efficiency and storage when using capacitors. 

    Breakout pins provide access to the full feature set of the AEM PMIC which can be re-configured via solder bridge jumpers.  

    At 200 lux, this design supports the Nordic blinky, HRM, beacon, and OTA DFU example applications with power left over to implement additional functions. 

    Flexible BLE Design

    This is a flexible version of the standard BLE design which takes full advantage of the thin/flexible nature of PowerFilm PV modules. 

    Implemented on a two layer flex PCB, there is only limited access to reconfigure the AEM PMIC. 

    Mini BLE Design 

    The mini BLE reference design features a smaller PV cell mounted with FPC connector tabs. The panel tabs insert on the top side, and the panel is folded around and mounted to the backside.

    This design is battery-less and relies on a 500uF capacitor bank for storage. A simple comparator-based circuit charges the capacitors and manages power delivered to the Nordic BLE device.

    At 200 lux, this design supports the Nordic blinky, HRM, and beacon example applications. 


    • Standard, Flex, or Mini circuit board assemblies

    • LL200-3.6-75 or INQ3.6-24x44T Indoor Solar Panels (SMT mounted)

    • Instructions, HW/SW files, and product documentation

    Use Cases - Power Source and Integration Guide for:

    Wireless connectivity is now standard in modern electronics and the growing IoT and sensing industries. Many applications in this area, especially ultra-low power BLE, can run completely off of an indoor solar energy harvesting solution.

    • BLE Beacons and Tags

    • Smart Windows and Shades

    • E-Paper Displays

    • Wireless Sensors

    • Telematics

    • Wearables

    • Smart Locks

    • Field and Herd Monitoring

    • Thermostats

    • Other Low Power Electronics

    nRF52832 Nordic BLE Module

    Fully functional BLE module configured for ultra-low-power operation. Connects to iOS and Android devices through Nordic’s example mobile applications.

    • iOS and Android connectivity

    • IO Break-out connectors for additional sensors or components

    • Segger Embedded Studio project solution files

    • Small footprint with compact meandering antenna design

    • Built-in DC/DC converter to support a wide range of operating voltages (1.7-3.8V)

    e-peas AEM10941 Energy Harvesting and Power Management IC

    The AEM10941 IC uses ultra-low-power boost converter technology to efficiently extract energy from the indoor solar, while the integrated power management is configured to charge a connected storage element which is used to power the rest of the circuitry. Compatible storage elements technologies include Lithium rechargeables, thin-film, solid state, NiMH and (super)capacitors. 

    • MPPT Input with low voltage boost converter with up to 95% 

    • Regulated LDO power output between 1.2 and 3.3V (selectable/adjustable).

    • Control module for powering devices directly from the storage element. 

    • Over/under voltage storage element protection. 

    • High-efficiency cold start functionality. 

    • Adjustable charge/protection voltage setpoints. 

    • Primary battery backup. 

    • Dual cell supercapacitor balancing circuit.

    • Small footprint with few external components required. 

    Panel Specifications 

    Indoor Series


    1000 lux:

    • 0.449mW

    • 0.214mA

    • 2.1V

    200 lux:

    • 0.068mW

    • 0.043mA

    • 1.6V

    Indoor Series


    1000 lux:

    • 1.354mW

    • 0.423mA

    • 3.2V

    200 lux:

    • 0.031mW

    • 0.013mA

    • 2.4V

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