author={Robert H. Annan},
  volume={227 4682},
  • R. Annan
  • Published 4 January 1985
  • Environmental Science, Engineering
  • Science
Solar cells, or photovoltaic cells, transform light, usually sunlight, into electric current. Few power-generation technologies are as clean as photovoltaics (PV). As it silently generates electricity, PV produces no air pollution or hazardous waste. It doesn't require liquid or gaseous fuels to be transported or combusted. And because sunlight is free and abundant, PV systems, especially baseload Space Solar Power, may eliminate uncertainties surrounding oil, gas, or other energy fuel supplies… 

Third generation photovoltaics

We review recent progress towards increasing solar cell efficiencies beyond the Shockley‐Queisser efficiency limit. Four main approaches are highlighted: multi‐junction cells, intermediate‐band

Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation Systematic Review and Harmonization

on an irradiation of 1,700 kWh/m 2 /yr to be with of the published the average irradiation in the United States is higher, at 1,800 kWh/m 2 /yr for latitude-tilt, south-facing planes. In the

Solar to Electrical Conversion via Liquid Crystal Elastomers

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Light Management in Perovskite Photovoltaic Solar Cells: A Perspective

Light management is essential for metal‐halide perovskite solar cells to achieve record performance. In this review, criteria on materials, processes, and photonic engineering are established to

The Impact of Tellurium Supply on Cadmium Telluride Photovoltaics

It is argued that the long-term potential for CdTe PV modules need not be bleak, given realistic developments in module technology and Te recovery.

Floating Solar: An Emerging Opportunity at the Energy-Water Nexus

Texas is experiencing tremendous growth, which puts pressure on resources including water and electricity supplies. Texas leads the nation in renewable energy production and is experiencing

Before more than 150 years ago by Alexander Edmond Becquerel discovered principle technology for the direct conversion of sunlight into electricity by using the photoelectric effect on large semiconductor photodiodes

The paper deals with accumulative materials with high the specific heat capacity. Such materials allow to accumulate energy from photovoltaic panels in thermally accumulation devices both in the form

Demand for Inexpensive , Ultrathin Film Photovoltaics

One of the great challenges facing society today is the supply of low-cost, environmentally friendly energy sources that can meet the growing demands of an expanding population. Photo-voltaic power

Developing Sealing Material of a Dye-Sensitized Solar Cell for Outdoor Power

: DSSC (dye-sensitized solar cell) is expected to be one of the next-generation photovoltaics because of its environment-friendly and low-cost properties. However, commercialization of DSSC is


A Cloudy Forecast for Solar Cells: The U.S. photovoltaic industry, facing rising costs and growing Japanese competition, is looking to Washington for assistance.

A brief description of the problems faced by the photovoltaic industry in the US is given and ways to help remedy these problems are addressed.