Development status of high-efficiency HIT solar cells

Mishima, Takahiro; Taguchi, Mikio; Sakata, Hitoshi; Maruyama, Eiji

doi:10.1016/j.solmat.2010.04.030

Cited by 429 publications

(219 citation statements)

References 2 publications

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“…UF is defined as the ratio of energy in the useful spectral range of the PV device to the total energy in the entire spectrum [7,23,24].…”

Section: Useful Fraction (Uf)mentioning

confidence: 99%

“…The main advantage of using UF as spectral indicator is that it provides direct feedback of a particular device performance and quantifies spectral influence on PV devices [15]. In this study, three technology modules of a-Si, mc-Si and HIT were used, which have active wavelength bands (i.e., useful spectral range) of 350-780 nm [23], 350-1150 nm [23], and 350-1200 nm [24], respectively.…”

Section: Useful Fraction (Uf)mentioning

confidence: 99%

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Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Magare

Sastry

Gupta

et al. 2015

Int J Energy Environ Eng

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The accuracy of outdoor performance of a photovoltaic (PV) array can be improved by considering the spectral effects. In this paper, the impact of seasonal spectral variations on the three different silicon PV technologies: single junction amorphous silicon (a-Si), Heterojunction with Intrinsic Thin-layer (HIT) and multi crystalline silicon (mc-Si) has been presented first time in Indian environmental conditions. The spectral effect on HIT PV module technology has been presented first time along with the first simultaneous study of variation in spectral indicators by useful fraction (UF), average photon energy (APE) and spectral mismatch factor (MMF), based on monthly and seasonal data. The maximum observed variation in UF was 26.4, 8.2, 10.8 %, while in MMF, variation was up to 24.7, 7.6, 8.2 % for a-Si, HIT and mcSi, respectively, and in APE variation was up to 15.3 %. Among all three technology modules, first time reported HIT technology showed the least variation while maximum variation was observed in a-Si technology. The observed spectral effect variations have been discussed on Performance Ratio and compared with reported results of other global sites. The value and trends of spectral parameters are important to understand the effect of spectral variation on different technology. This study is especially important in Indian subcontinent perspective because of the strong monsoon season, where observed variation in the spectrum-related parameter found to be highest among all the seasons.

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“…UF is defined as the ratio of energy in the useful spectral range of the PV device to the total energy in the entire spectrum [7,23,24].…”

Section: Useful Fraction (Uf)mentioning

confidence: 99%

Section: Useful Fraction (Uf)mentioning

confidence: 99%

Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Magare

Sastry

Gupta

et al. 2015

Int J Energy Environ Eng

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“…With stacks of intrinsic and doped a-Si:H layers, excellent surface passivation can be achieved, leading to high open-circuit voltages in excess of 720 mV. 1,2 The drawback of the amorphous emitter is its low mobility, which, together with a thickness limited to a few nanometers to reduce light absorption losses, 3,4 results in a high resistivity. To overcome this disadvantage and achieve high efficiencies, a transparent conductive oxide (TCO) layer is required on top of the emitter for lateral transport of photogenerated charge carriers to metal finger contacts; the TCO also serves as a single-layer antireflection coating.…”

Section: Introductionmentioning

confidence: 99%

Analysis of lateral transport through the inversion layer in amorphous silicon/crystalline silicon heterojunction solar cells

Filipič

Holman

Smole

et al. 2013

Journal of Applied Physics

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In amorphous/crystalline silicon heterojunction solar cells, an inversion layer is present at the front interface. By combining numerical simulations and experiments, we examine the contribution of the inversion layer to lateral transport and assess whether this layer can be exploited to replace the front transparent conductive oxide (TCO) in devices. For this, heterojunction solar cells of different areas (2 Â 2, 4 Â 4, and 6 Â 6 mm 2 ) with and without TCO layers on the front side were prepared. Laser-beam-induced current measurements are compared with simulation results from the ASPIN2 semiconductor simulator. Current collection is constant across millimeter distances for cells with TCO; however, carriers traveling more than a few hundred microns in cells without TCO recombine before they can be collected. Simulations show that increasing the valence band offset increases the concentration of holes under the surface of n-type crystalline silicon, which increases the conductivity of the inversion layer. Unfortunately, this also impedes transport across the barrier to the emitter. We conclude that the lateral conductivity of the inversion layer may not suffice to fully replace the front TCO in heterojunction devices. V C 2013 AIP Publishing LLC.

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“…Одним из таких улучшений может выступить создание солнечных элементов и модулей, позволяющих генерировать элек-троэнергию при освещении как с фронтальной, так и с тыльной сторон [5]. Технологически этого можно добить-ся, исключив нанесение сплошного тыльного металличе-ского контакта и используя вместо него такую же кон-тактную сетку, как и с фронтальной стороны.…”

Section: Introductionunclassified

Использование Солнечных Элементов С Двусторонней Контактной Сеткой В Условиях Казахстана

Токмолдин¹,

Чучвага²,

Вербицкий³

et al. 2017

Журнал Технической Физики

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Development status of high-efficiency HIT solar cells

Cited by 429 publications

References 2 publications

Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Analysis of lateral transport through the inversion layer in amorphous silicon/crystalline silicon heterojunction solar cells

Использование Солнечных Элементов С Двусторонней Контактной Сеткой В Условиях Казахстана

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