Results 51 to 60 of about 5,290,158 (260)

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon   +14 more
wiley   +1 more source

Synthesis of nano silver particles using extracellular polysaccharide of Pseudoduganella armeniaca ZMN-3: antibacterial activity, antibacterial mechanism and antibacterial application as coating

open access: yesBMC Biotechnology
The present study focused on the antibacterial activity, mechanism and application of Pseudoduganella armeniaca ZMN − 3 extracellular polysaccharide nano silver.
Yumeng Cui   +6 more
doaj   +1 more source

Effects of Sulfurization Temperature on Properties of CZTS Films by Vacuum Evaporation and Sulfurization Method

open access: yesInternational Journal of Photoenergy, 2013
Copper zinc tin sulfur (CZTS) thin films have been extensively studied in recent years for their advantages of low cost, high absorption coefficient (≥104 cm−1), appropriate band gap (~1.5 eV), and nontoxicity.
Jie Zhang   +3 more
doaj   +1 more source

Numerical simulation of interdigitated back contact hetero-junction solar cells [PDF]

open access: yes, 2013
The goal of this thesis is the application of an opto-electronic numerical simulation to heterojunction silicon solar cells featuring an all back contact architecture (Interdigitated Back Contact Hetero-Junction IBC-HJ).
Callozzo, Alessandro
core  

Blue Upconversion Organic Light‐Emitting Diodes Achieving 1000 cd m−2 With an Operating Voltage of 2.7 V by Suppressing Interfacial Exciton Quenching

open access: yesAdvanced Functional Materials, EarlyView.
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui   +5 more
wiley   +1 more source

Towards anode with low indium content as effective anode in organic solar cells [PDF]

open access: yes, 2012
In2O3 thin films (100 nm thick) have been deposited by reactive evaporation of indium, in an oxygen partial atmosphere. Conductive (σ = 3.5×103 S/cm) and transparent films are obtained using the following experimental conditions: oxygen partial pressure =
LOUARN, Guy   +29 more
core   +1 more source

Photoinduced Charge Separation in Single‐Component Squaraine Films: The Key Role of Electrostatic Disorder

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi   +12 more
wiley   +1 more source

A Population Classification Evolution Algorithm for the Parameter Extraction of Solar Cell Models

open access: yesInternational Journal of Photoenergy, 2016
To quickly and precisely extract the parameters for solar cell models, inspired by simplified bird mating optimizer (SBMO), a new optimization technology referred to as population classification evolution (PCE) is proposed.
Yiqun Zhang   +3 more
doaj   +1 more source

Reliability Improvement in III-V Concentrator Solar Cells by Means of Perimeter Protection [PDF]

open access: yes, 2010
This paper presents the evolution in the strategy to assess the reliability of III-V solar cells and a new thermal ageing test carried out over GaAs single junction solar cells at three different temperatures (130, 150 and 170° C).
Algora del Valle, Carlos   +4 more
core  

Performance of a building integrated photovoltaic/thermal (BIPVT) solar collector [PDF]

open access: yes, 2009
The idea of combining photovoltaic and solar thermal collectors (PVT collectors) to provide electrical and heat energy is an area that has, until recently, received only limited attention.
Carson, James K.   +3 more
core   +1 more source

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