تقييم كفاءة خلية شمسية من مادة السيليكون ذات أخاديد مختلفة الشكل باستخدام برنامج زيماكس

Other Title(s)

Efficiency evaluation of different grooves silicon solar cell using ZEMAX

Dissertant

غالب، مريم أزهر علي

Thesis advisor

علاء بدر حسن

University

University of Baghdad

Faculty

College of Education for Puresciences-IBN al-Haitham

Department

Department of Physics

University Country

Iraq

Degree

Master

Degree Date

2016

English Abstract

In this work silicon solar cell has been designed with grooves texture it's upper surface to increase efficiency by reducing reflection of rays and increasing optical path through the cell and subsequently increasing absorption photons into the cell.

The grooves are designed from silicon and appended to the upper surface of solar cell.

There are five samples have been designed: triangle shape grooves solar cell with variable base, triangle shape grooves solar cell with variable apex, rectangular shape grooves solar cell with variable height, rectangular shape grooves solar cell with variable width, and semicircular shape grooves solar cell.

There is detector positioned at the bottom of the cell which has sensitivity for visible light and it that appropriate with silicon optical transmission and whenever increase internal reflections for cell increase the detector reading then the result it the quantity of ray from increasing optical path.

The grooves designed of variable value of aspect ratio (0.5, 0.6 ,0.7 ,0.8, 0.9 ,1, 1.2 ,1.4, 1.6, 1.8 and 2) and at any aspect ratio value either grooves length (z) or grooves width (w) variant.

The grooves decrease the reflection and increasing optical path through the cell and subsequently increasing solar cell efficiency.

In this work, solar cell has been designed by using nonsequential ray tracing mode software program for optical design (zemax).

The number of rays used in the program (1000) rays incident vertically on the cell) P P (ϴ = 0 and used incident ray bevel angle) ͦ - 10P P80 P(in two directions parallel and cross with the grooves to explanation the effect of incident angle on cell efficiency and grooves effect range on incident angle.

The best model achieved the five models and (more efficiency) it semicircular shape grooves that gives detector reading (3500) rays equal three times and half of grand number of incident rays, and then triangular shape grooves with variable base that gives detector reading (2500) ray equal twice and half of the grand number of incident rays, and then triangular shape grooves with variable apex that gives detector reading (1400) ray, and then rectangular shape grooves that gives detector reading (1000) ray equal the grand number of incident rays.

Obviously increasing angle caused graduated detector reading.

The illuminance distribution shows variation of ray's distribution on the cell that give uniform illuminance distribution for all cell dimensions.

Main Subjects

Physics

No. of Pages

80

Table of Contents

• APA
• MLA
• AMA

Language

Arabic

Data Type

Arab Theses

Record ID

BIM-737744