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Can Indoor Solar Cells Harvest Ambient Lighting for IoT Devices?

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Internet of Things (IoT) devices are high green technology tools that make it possible to communicate and interact over the internet. Today, there are millions of types of these devices designed for monitoring, transmitting, and securing our home. Most IoT devices today require electric power in the microwatt range in order to operate indoors. If you live in a large home, regularly replacing batteries for these devices can be a lot of work.  To overcome this inconvenience and reduce battery waste, scientists are now building a new type of solar cells that can harvest energy from indoor lighting. 

Indoor Solar Cells

Indoor solar cells are made using a copper-complex electrolyte. They are the most efficient power converters even under ambient lighting conditions. Unlike the traditional solar cells which are made from crystalline silicon, these new solar cells are made from dye-sensitized solar cells which are more efficient at converting artificial light to electric power. 

How Do They Work? 

Indoor solar cells are built so that they are flexible and have a light-absorbing layer. This allows them to be optimized for light of different wavelengths (including indoor light). They come in various types but the most successful are the organic, dye-sensitized, and perovskite.  With the help of artificial intelligence, the cell system can give output  according to the level of illumination. This helps reduce energy consumption and battery waste. 

The problem with the conventional solar cells is their poor response to light levels. Since they are “solar cells”, they are only effective under direct sunlight which has a light density of 30,000 to 100,00 lux. Our home’s typical lighting only ranges from around 50 to 150 lux. At these levels, solar cells can’t produce any form of usable power.  

Excellent Power-Conversion Capabilities

In the study conducted by researchers from Germany, Italy, and Columbia, the new solar cells delivered power-conversion capabilities of more than 20 percent under 200 lux, which is the typical lighting in most homes. They can make indoor efficiency three times better than the crystalline silicon. The strongest benefit of these kinds of solar cells is their low price and flexibility.  

The technology is still not perfect though. Perovskite solar cells are found to be more fragile than the traditional solar cells. They can degrade when exposed to moisture, too much heat, and ultraviolet light. These drawbacks make them impossible to be used outside the house. 

Organic Solar Cells 

In a similar study in China, researchers developed a new type of solar cells through a combination of donor and acceptor materials. They used it as the active layer for the “organic solar cell’. This layer absorbs wavelengths of light around it in almost all kinds of indoor environments. 

They created two variants. One which has an area of 1cm2 and the other 4cm2. When the smaller one was exposed to ambient light at 1000 lux, they found that it converted as much as 26.1% of energy to electricity. The larger one maintained an energy efficiency of 23 percent. This research is very promising knowing how much we would probably rely on IoT devices in the near future. 

Dye-Sensitized Solar Cells 

European scientists are developing a dye-sensitized solar cell that is based on a copper-complex electrolyte. It is basically made of organic dye which though a chemical process becomes crystals which are sensitive to light in the red, green, or infrared regions of the spectrum. 

They tested it on a thin square of conductive glass and found promising results. It converted as much as 34 percent of ambient light into electricity and around 31.4 percent from fluorescent lamps. These new solar cells have amazing advantages indoors as they can maintain high voltages in low-light settings.  According to the researchers, it could revolutionize indoor digital sensing for offices, greenhouses, and other smart devices. 

The Internet of things has been rapidly growing for the past few years so much that experts estimated that by the year 2025, there will be around 75 billion IoT devices around the world. The battery required to cover the energy needs of these products would be too large. There are also significant negative effects on the environment from the disposal of these batteries.  

If we want to help save the planet, we must find a way to conserve batteries and seek alternatives. Indoor light harvesting through these solar cells can prove to be the solution. If implemented, powering our smart homes in the near future will no longer be a problem. In fact, these new indoor solar cells could be the future power source for almost all devices. Its brilliant combination of  high-efficiency and low cost makes it important for IoT sustainability. 

This content was originally published here.

IoT

Google Nest Hub Max Smart Home Assistant (Chalk, Refurbished, Plain Box) – EXPANSYS Japan

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Best Amazon Prime Day Arlo, Nest, Ring, Blink & Smart Home Deals 2020: Top Security Camera, Video Doorbell, Floodlight, Alarm & Philips Hue Sales Presented by Deal Tomato

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Prime Day smart home & security camera deals for 2020 are finally here, browse all the latest Prime Day Ring Video Doorbell, Nest Protect & Thermostat, Philips Hue smart LED bulb, Arlo Pro & Blink Mini sales listed belowPrime Day home secur…

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IoT

Which Smart Home Heating Should You Choose?

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Not all smart heating control systems are suited for every lifestyle and home, with some more and less beneficial than others. SMART stands for ‘Self-Monitoring Analysis & Reporting Technology’, and differs from standard heating controls by allowing you to control every aspect of your heating schedule from either a phone or tablet. Although room thermostats and timers allow you to control each room instead of your whole home, as long as you have internet access, smart home heating devices let you control your heating from your phone, no matter where you are in the world.

Today, we’re running through 7 of the best smart heating thermostats and systems, comparing features, benefits and what type of home they’re most suitable for.

– 7 day, & 5/2 day scheduling with a pre-configured schedule included
– Choice of up to 4 time periods a day
– Minimum On-Time & Cycle Rate settings ensuring compatibility with many boilers
– Table stand for ease of positioning
– Alert messages to assist fault-finding with a fail-safe mode
– Wireless technology makes upgrading easier and the installation time shorter with less wiring involved

Best for:

– Homes that require high levels of automatic control that provide significant energy efficiency for a wide range of boilers and systems.

– Single Heating Zone Control
– 7 Day, 5/2 Day, or 24 Hour Control
– Programmable Room Thermostat
– Easily Programmed With The Associated App

Best for:

– Homes that are just starting to take the first steps into using smart home heating
– Homes that need a single heating zone control
– Homes that have either combination or standard boiler systems

– Touch-screen interface simplifies scheduling, changing and overriding temperature
– Location-based programming (geo-fencing) adds an automated layer of control, adjusting the customer’s home heating based on their location
– Scheduling features include 7 and 5/2 day bespoke scheduling with up to 6 time periods a day
– Simple flip-up wiring bar for easy access and an easy-to-install boiler or zone valve interface
– Direct wall mounting or wall-box mounting
– Optimisation features include optimum start and stop & delayed start boiler control. Allows the thermostat and boiler to work more efficiently together

Best for:

– Homes with any boiler and almost every heating system
– Homes with 230V on/off OpenTherm appliances (gas boilers, combi boilers and heat pumps)

– Ability to control water temperature and heating
– Self-learning functions to make every experience a unique one, helping it to understand your home’s needs
– Using a smart weather compensation feature and weather data, the vSMART can tell your boiler how hard it has to work to get your home to your required temperature
– You can connect multiple vSMART controllers to one app

Best for:

– Homes with Valliant ecoTEC system/open vented boilers
– Households that want to be able to control water temperature from anywhere too

– A 7-day full programmer that gives great flexibility offering up to three on/off switchings per day
– LoT display, providing text feedback that gives help and programming hints
– Automatic Summer/Winter 1 hour time change
– Choice of 3 different built-in programmes
– ‘Holiday’ button

Best for:

– Homes with heating and stored hot water in complete systems
– Homes with older gravity circulation stored hot water systems, where there’s no interlocking control valve
– Households with different heating needs from day-to-day

– One channel thermostat system with two radiator thermostats to start zoning your system
– Smart heating & hot water control
– Quick & simple to install using an industry-standard backplate
– Easy Zoning with the addition of extra Wiser Radiator Thermostats

Best for:

– Homes with combination boilers
– Households that want to start a zoned system to control individual zones within the home

– Automatic time and temperature control of domestic heating premises
– Optimum Start, Optimum Stop and Delayed Start
– No installer links or switches on the back of the unit means no adjustment is required for combi boilers and most central heating systems
– Scheduled maintenance alert
– Automatic Summer/Winter time change
– Up to four independent time & temperature settings
– Auto, manual, holiday, override and off (frost) modes

Best for:

– Domestic premises
– Most central heating systems and combi boilers

For more smart home heating controls, check out our full range today at MonsterPlumb. If you’re not interested in smart technology when it comes to controlling the heating and water temperature in your home, take a look at our selection of heating controls and valves.

This content was originally published here.

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