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Irradiance adjustment system developed for various types of solar cells and illumination conditions

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A new irradiance adjustment system for the light source named “Programmable Reference cell system for Irradiance adjustment by Spectral Measurement (PRISM)” has been developed for photovoltaics evaluation. It can be applied
for various kinds of solar cells and illumination conditions without the preparation of conventional reference cells. This system consists of a device for absolute spectral responsivity measurements, that is, the spectral responsivity unit, and a device for irradiance adjustment of the light source, that is, the spectral reference cell. First, the short circuit current of the target solar cell (Iref) is calculated by convolution of the absolute spectral responsivity with the spectral irradiance under STC (AM1.5 G, 1 kW/m2, 25°C) as defined in IEC 60904-3. The spectral
irradiance of the light source is then adjusted for I–V measurements so that the short-circuit current of the spectral reference cell (Ical), calculated by convolution of the absolute spectral responsivity with the spectral irradiance of the light source, agrees with Iref. The difference between Iref and the short circuit current,as determined at an internationally recognized test center under STC, was within
2% for crystalline silicon solar cells and
3% for organic solar cells. The difference between Ical and the short-circuit current measured under a solar simulator or LED in which the irradiance was adjusted by this system was within
4% when the irradiance was higher than 4 W/m2.

Keywords
DSR method, I–V characterizations, organic solar cell, reference cell, spectral responsivity,spectroradiometer

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Informasi Detail

Judul Seri

Energy Science and Engineering

No. Panggil

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Penerbit

: The Authors., 2015

Deskripsi Fisik

Energy Science and Engineering 2015; 3(5): 456–467

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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